chore: regenerate readme, manifests after md5 resolution fix

MAME/MESS ROM sets (23 ZIPs from archive.org MESS 0.151 + MAME 0.285 split),
Dolphin BT firmware (15 files from linux-firmware), Commodore VIC-20/Plus4
regional ROMs (8 from zimmers.net), IBM AT 5170 BIOS + BASIC (3 from
minuszerodegrees.net + PCem), Apple DiskII boot/state-machine ROMs (4 from
Asimov mirror), Commodore 1540/1541 drive ROMs (2 reconstructed from MAME
chips), Oric Microdisc ROM, SMS Japanese BIOS, Videoton TVC64 + BK-0010
enriched ZIPs. All platforms at 0 required missing except Batocera bk0010.zip
(2/11 ROM chips unavailable).

.gitignore

@@ -36,6 +36,7 @@ bios/Nintendo/DS/DSi_Nand_USA.bin
 bios/Nintendo/DS/DSi_Nand_AUS.bin
 bios/Nintendo/DS/DSi_Nand_CHN.bin
 bios/Nintendo/DS/DSi_Nand_KOR.bin
+bios/Nintendo/DS/dsi_nand.bin
 
 # QEMU EDK2 firmware (64MB each)
 bios/QEMU/edk2-aarch64-code.fd

README.md

@@ -2,7 +2,7 @@
 
 Complete BIOS and firmware packs for Batocera, BizHawk, EmuDeck, Lakka, Recalbox, RetroArch, RetroBat, RetroDECK, RetroPie, and RomM.
 
-**7,244** verified files across **387** systems, ready to extract into your emulator's BIOS directory.
+**7,293** verified files across **396** systems, ready to extract into your emulator's BIOS directory.
 
 ## Quick Install
 
@@ -27,14 +27,14 @@ Pick your platform, download the ZIP, extract to the BIOS path.
 
 | Platform | BIOS files | Extract to | Download |
 |----------|-----------|-----------|----------|
-| Batocera | 359 | `/userdata/bios/` | [Download](../../releases/latest) |
+| Batocera | 362 | `/userdata/bios/` | [Download](../../releases/latest) |
 | BizHawk | 118 | `Firmware/` | [Download](../../releases/latest) |
 | EmuDeck | 161 | `Emulation/bios/` | [Download](../../releases/latest) |
 | Lakka | 448 | `system/` | [Download](../../releases/latest) |
 | Recalbox | 346 | `/recalbox/share/bios/` | [Download](../../releases/latest) |
 | RetroArch | 448 | `system/` | [Download](../../releases/latest) |
-| RetroBat | 331 | `bios/` | [Download](../../releases/latest) |
+| RetroBat | 339 | `bios/` | [Download](../../releases/latest) |
-| RetroDECK | 2007 | `~/retrodeck/bios/` | [Download](../../releases/latest) |
+| RetroDECK | 2006 | `~/retrodeck/bios/` | [Download](../../releases/latest) |
 | RetroPie | 448 | `BIOS/` | [Download](../../releases/latest) |
 | RomM | 374 | `bios/{platform_slug}/` | [Download](../../releases/latest) |
 
@@ -44,14 +44,14 @@ BIOS, firmware, and system files for consoles from Atari to PlayStation 3.
 Each file is checked against the emulator's source code to match what the code actually loads at runtime.
 
 - **10 platforms** supported with platform-specific verification
-- **328 emulators** profiled from source (RetroArch cores + standalone)
+- **329 emulators** profiled from source (RetroArch cores + standalone)
-- **387 systems** covered (NES, SNES, PlayStation, Saturn, Dreamcast, ...)
+- **396 systems** covered (NES, SNES, PlayStation, Saturn, Dreamcast, ...)
-- **7,244 files** verified with MD5, SHA1, CRC32 checksums
+- **7,293 files** verified with MD5, SHA1, CRC32 checksums
-- **9266 MB** total collection size
+- **8710 MB** total collection size
 
 ## Supported systems
 
-NES, SNES, Nintendo 64, GameCube, Wii, Game Boy, Game Boy Advance, Nintendo DS, Nintendo 3DS, Switch, PlayStation, PlayStation 2, PlayStation 3, PSP, PS Vita, Mega Drive, Saturn, Dreamcast, Game Gear, Master System, Neo Geo, Atari 2600, Atari 7800, Atari Lynx, Atari ST, MSX, PC Engine, TurboGrafx-16, ColecoVision, Intellivision, Commodore 64, Amiga, ZX Spectrum, Arcade (MAME), and 353+ more.
+NES, SNES, Nintendo 64, GameCube, Wii, Game Boy, Game Boy Advance, Nintendo DS, Nintendo 3DS, Switch, PlayStation, PlayStation 2, PlayStation 3, PSP, PS Vita, Mega Drive, Saturn, Dreamcast, Game Gear, Master System, Neo Geo, Atari 2600, Atari 7800, Atari Lynx, Atari ST, MSX, PC Engine, TurboGrafx-16, ColecoVision, Intellivision, Commodore 64, Amiga, ZX Spectrum, Arcade (MAME), and 362+ more.
 
 Full list with per-file details: **[https://abdess.github.io/retrobios/](https://abdess.github.io/retrobios/)**
 
@@ -59,16 +59,16 @@ Full list with per-file details: **[https://abdess.github.io/retrobios/](https:/
 
 | Platform | Coverage | Verified | Untested | Missing |
 |----------|----------|----------|----------|---------|
-| Batocera | 359/359 (100.0%) | 354 | 5 | 0 |
+| Batocera | 361/362 (99.7%) | 359 | 2 | 1 |
 | BizHawk | 118/118 (100.0%) | 118 | 0 | 0 |
 | EmuDeck | 161/161 (100.0%) | 161 | 0 | 0 |
-| Lakka | 443/448 (98.9%) | 443 | 0 | 5 |
+| Lakka | 448/448 (100.0%) | 448 | 0 | 0 |
-| Recalbox | 276/346 (79.8%) | 273 | 3 | 70 |
+| Recalbox | 346/346 (100.0%) | 345 | 1 | 0 |
-| RetroArch | 443/448 (98.9%) | 443 | 0 | 5 |
+| RetroArch | 448/448 (100.0%) | 448 | 0 | 0 |
-| RetroBat | 330/331 (99.7%) | 326 | 4 | 1 |
+| RetroBat | 339/339 (100.0%) | 339 | 0 | 0 |
-| RetroDECK | 1958/2007 (97.6%) | 1932 | 26 | 49 |
+| RetroDECK | 2006/2006 (100.0%) | 2004 | 2 | 0 |
-| RetroPie | 443/448 (98.9%) | 443 | 0 | 5 |
+| RetroPie | 448/448 (100.0%) | 448 | 0 | 0 |
-| RomM | 372/374 (99.5%) | 372 | 0 | 2 |
+| RomM | 374/374 (100.0%) | 374 | 0 | 0 |
 
 ## Build your own pack
 
@@ -104,7 +104,7 @@ The [documentation site](https://abdess.github.io/retrobios/) provides:
 - **Per-emulator profiles** with source code references for every file
 - **Per-system pages** showing which emulators and platforms cover each console
 - **Gap analysis** identifying missing files and undeclared core requirements
-- **Cross-reference** mapping files across 10 platforms and 328 emulators
+- **Cross-reference** mapping files across 10 platforms and 329 emulators
 
 ## How it works
 
@@ -130,4 +130,4 @@ See [CONTRIBUTING.md](CONTRIBUTING.md) for guidelines.
 
 This repository provides BIOS files for personal backup and archival purposes.
 
-*Auto-generated on 2026-03-29T21:00:40Z*
+*Auto-generated on 2026-03-31T12:15:43Z*

bios/Apple/Apple II/DiskII/state-machine-13.rom

@@ -0,0 +1,65 @@
+ИИ<EFBFBD>Ш
+
+
+
+<EFBFBD>Щ<EFBFBD>Щ<EFBFBD>Ы<EFBFBD>Ы<EFBFBD>ШШ
+
+
+
+<EFBFBD>Щ<EFBFBD>Щ<EFBFBD>Ы<EFBFBD>ЫИ=ИИ
+
+
+
+<EFBFBD>й<EFBFBD>й<EFBFBD>л<EFBFBD>л<EFBFBD>н<EFBFBD>и
+
+
+
+<EFBFBD>й<EFBFBD>й<EFBFBD>л<EFBFBD>лИИИИ
+
+
+
+ЈшЈшЈшЈшЈшЈш
+
+
+
+ЈшЈшЈшЈшЙ§Иј
+
+
+
+ИјИјИјИјЙ§Pј
+
+
+
+ИјИјИјИјИИHИ
+
+
+
+H(H(H(H(H(H(
+
+
+
+H(H(H(H(ИЙИИ
+
+
+
+X8X8X8X8	ЩX8
+
+
+
+X8X8X8X8ИИИИ
+
+
+
+hhhhhh
+
+
+
+hhhh<18>Нxp
+
+
+
+xxxx
+-xp
+
+
+

bios/Apple/Apple II/DiskII/state-machine-16.rom

@@ -0,0 +1,65 @@
+Ш
+
+
+
+99;;8(
+
+
+
+99;;-Ш8H
+
+
+
+(H(H(H(H-H8H
+
+
+
+(H(H(H(HШШШШ
+
+
+
+XxXxXxXxXxXx
+
+
+
+XxXxXxXxШШШШ
+
+
+
+hh€hh€h€h€
+
+
+
+hh€hh€ШНШШ
+
+
+
+<EFBFBD>№<EFBFBD>№<EFBFBD>»<EFBFBD>»<EFBFBD>Ѕ<EFBFBD>ё
+
+
+
+<EFBFBD>№<EFBFBD>№<EFBFBD>»<EFBFBD>»ШЩШШ
+
+
+
+ЁИЁИЁИЁИ)YЁИ
+
+
+
+ЁИЁИЁИЁИЩэШш
+
+
+
+ШшШшШшШшЩэ ш
+
+
+
+ШшШшШшШшШЭиа
+
+
+
+и€ии€иMиа
+
+
+
+и€ии€и

emulators/fbneo.yml

@@ -5,7 +5,7 @@ source: "https://github.com/libretro/FBNeo"
 upstream: "https://github.com/finalburnneo/FBNeo"
 logo: "https://raw.githubusercontent.com/finalburnneo/FBNeo/master/projectfiles/xcode/Emulator/Assets.xcassets/AppIcon.appiconset/icon_512.png"
 profiled_date: "2026-03-23"
-core_version: "v1.0.0.03"
+core_version: "v1.0.0.2"
 display_name: "Arcade (FinalBurn Neo)"
 cores:
   - fbneo
@@ -33,6 +33,8 @@ systems:
   - taito-cchip
   - ym2608
 
+archive_prefix: fbneo
+
 data_directories:
   - ref: fbneo-cheats
     destination: fbneo/cheats
@@ -1485,3 +1487,94 @@ files:
     size: 155000000
     note: "Two Tigers with Journey CD audio samples (2 WAVs)"
     source_ref: "src/burn/snd/samples.cpp"
+
+  - name: "coleco.rom"
+    archive: cv_coleco.zip
+    required: true
+    size: 8192
+    crc32: "3aa93ef3"
+    source_ref: "src/burn/drv/coleco/d_coleco.cpp:1079"
+
+  - name: "colecoa.rom"
+    archive: cv_coleco.zip
+    required: true
+    size: 8192
+    crc32: "39bb16fc"
+    source_ref: "src/burn/drv/coleco/d_coleco.cpp:1079"
+
+  - name: "svi603.rom"
+    archive: cv_coleco.zip
+    required: true
+    size: 8192
+    crc32: "19e91b82"
+    source_ref: "src/burn/drv/coleco/d_coleco.cpp:1079"
+
+  - name: "czz50.rom"
+    archive: cv_coleco.zip
+    required: true
+    size: 16384
+    crc32: "4999abc6"
+    source_ref: "src/burn/drv/coleco/d_coleco.cpp:1079"
+
+  - name: "fdsbios.nes"
+    archive: fds_fdsbios.zip
+    required: true
+    size: 8192
+    crc32: "5e607dcf"
+    source_ref: "src/burn/drv/nes/d_nes.cpp:523"
+
+  - name: "st010.bin"
+    archive: snes_st010.zip
+    required: true
+    size: 69632
+    crc32: "aa11ee2d"
+    source_ref: "src/burn/drv/snes/d_snes.cpp:577"
+
+  - name: "st011.bin"
+    archive: snes_st011.zip
+    required: true
+    size: 69632
+    crc32: "34d2952c"
+    source_ref: "src/burn/drv/snes/d_snes.cpp:596"
+
+  - name: "msx.rom"
+    archive: msx_msx.zip
+    required: true
+    size: 32768
+    crc32: "a317e6b4"
+    source_ref: "src/burn/drv/msx/d_msx.cpp:1781"
+
+  - name: "msxj.rom"
+    archive: msx_msx.zip
+    required: true
+    size: 32768
+    crc32: "071135e0"
+    source_ref: "src/burn/drv/msx/d_msx.cpp:1781"
+
+  - name: "kanji.rom"
+    archive: msx_msx.zip
+    required: true
+    size: 262144
+    crc32: "1f6406fb"
+    source_ref: "src/burn/drv/msx/d_msx.cpp:1781"
+
+  - name: "supernova_modbios-japan.u10"
+    archive: skns.zip
+    required: true
+    size: 524288
+    crc32: "b8d3190c"
+    source_ref: "src/burn/drv/pst90s/d_suprnova.cpp:1865"
+
+  - name: "supernova-modbios-korea.u10"
+    archive: skns.zip
+    required: true
+    size: 524288
+    crc32: "1d90517c"
+    source_ref: "src/burn/drv/pst90s/d_suprnova.cpp:1865"
+
+  - name: "mcu"
+    archive: bubsys.zip
+    required: true
+    size: 4096
+    crc32: "00000000"
+    source_ref: "src/burn/drv/konami/d_nemesis.cpp:4539"

emulators/fbneo_cps12.yml

@@ -32,6 +32,8 @@ notes: |
 
   need_fullpath=false, extensions=zip|7z, savestate=deterministic.
 
+archive_prefix: fbneo
+
 files:
   - name: "hiscore.dat"
     path: "fbneo/hiscore.dat"

emulators/fbneo_neogeo.yml

@@ -38,6 +38,8 @@ notes: |
 
   need_fullpath=false, extensions=zip|7z|cue|ccd, savestate=deterministic.
 
+archive_prefix: fbneo
+
 files:
   # -------------------------------------------------------
   # Neo Geo MVS/AES (neogeo.zip) — 68K BIOS ROMs

emulators/kronos.yml

@@ -38,11 +38,14 @@ notes: |
   Standalone supports MPEG card ROM loading (Video CD card); disabled in
   libretro port (mpegpath = NULL in libretro.c:1578).
 
+archive_prefix: kronos
+
 files:
   # -----------------------------------------------------------
   # Saturn BIOS - primary (any region)
   # -----------------------------------------------------------
   - name: "saturn_bios.bin"
+    path: "kronos/saturn_bios.bin"
     system: sega-saturn
     required: true
     size: 524288

emulators/lrps2.yml

@@ -5,6 +5,7 @@
 emulator: LRPS2
 type: libretro
 core_classification: community_fork
+bios_mode: agnostic
 source: "https://github.com/libretro/ps2"
 upstream: "https://github.com/PCSX2/pcsx2"
 profiled_date: "2026-03-25"

emulators/melonds.yml

@@ -77,11 +77,14 @@ files:
     source_ref: "src/SPI.cpp:197-211, src/frontend/Util_ROM.cpp:201-217"
 
   - name: dsi_nand.bin
+    agnostic: true
     system: nintendo-dsi
     description: "DSi NAND dump"
     required: true
-    source_ref: "src/frontend/Util_ROM.cpp:224-235, src/DSi_NAND.cpp"
+    size: 251658304
-    note: "Uses AES keys from ARM7i BIOS offset 0x8308"
+    storage: large_file
+    source_ref: "src/frontend/Util_ROM.cpp:224-235, src/DSi_NAND.cpp:58-97"
+    note: "Any regional dump works. Nocash footer required (DSi eMMC CID/CPU at EOF-0x40 or 0xFF800). AES keys derived from ARM7i BIOS offset 0x8308."
 
   - name: dsi_sd_card.bin
     system: nintendo-dsi

emulators/pcsx2.yml

@@ -1,219 +1,74 @@
-# PCSX2 emulator BIOS profile
-# Generated from source analysis of https://github.com/PCSX2/pcsx2
-# Commit analyzed: HEAD as of 2026-03-17
-
 emulator: PCSX2
 type: standalone
+core_classification: official_port
+bios_mode: agnostic
 source: "https://github.com/PCSX2/pcsx2"
-logo: "https://raw.githubusercontent.com/PCSX2/pcsx2/master/pcsx2-qt/resources/icons/PCSX2logo.svg"
+upstream: "https://github.com/PCSX2/pcsx2"
-profiled_date: "2026-03-18"
+cores:
+  - pcsx2
+profiled_date: "2026-03-30"
 core_version: "Git"
-display_name: "Sony - PlayStation 2 (LRPS2)"
+display_name: "Sony - PlayStation 2 (PCSX2)"
 systems: [sony-playstation-2]
 
-bios_directory: "bios/"
+notes: |
-bios_detection: "romdir"  # scans romdir structure inside binary, looks for RESET/ROMVER/EXTINFO entries
+  Filename-agnostic BIOS detection. Scans bios/ for any file between 4-8 MB
-bios_selection: "automatic"  # scans all files in bios dir matching 4-8 MB size, validates via romdir
+  with valid romdir structure (RESET + ROMVER entries). No hash validation.
-
+  Companion files (.rom1, .rom2, .nvm, .mec) derive paths from selected BIOS.
-validation:
+  ROM1 (DVD player) and ROM2 (Chinese extension) silently skipped if missing.
-  method: "romdir_parse"
+  NVM and MEC auto-created with defaults if missing.
-  min_size: 4194304   # 4 MB (MIN_BIOS_SIZE = 4 * _1mb)
-  max_size: 8388608   # 8 MB (MAX_BIOS_SIZE = 8 * _1mb)
-  required_entries: ["RESET", "ROMVER"]
-  optional_entries: ["EXTINFO"]
-  note: "Any file in bios/ between 4-8 MB with valid romdir containing RESET+ROMVER is accepted"
-
-regions:
-  J: {zone: "Japan", id: 0}
-  A: {zone: "USA", id: 1}
-  E: {zone: "Europe", id: 2}
-  H: {zone: "Asia", id: 4}
-  C: {zone: "China", id: 6}
-  T: {zone: "T10K/COH-H", id: 8}
-  X: {zone: "Test", id: 9}
-  P: {zone: "Free", id: 10}
 
 files:
-  # -- Main BIOS binary (required) --
+  - name: ps2-0230a-20080220.bin
-  - name: "<user-selected>.bin"
-    pattern: "*"
     required: true
-    size_range: "4MB-8MB"
+    min_size: 4194304
-    source_ref: "pcsx2/ps2/BiosTools.cpp:258-282"
+    max_size: 8388608
-    note: >
+    validation: [size]
-      PCSX2 does not mandate a specific filename. It scans the entire bios/ directory
+    source_ref: "pcsx2/ps2/BiosTools.cpp:258-362"
-      for any file between 4-8 MB that contains a valid romdir structure (RESET + ROMVER entries).
+    note: "Accepts any file 4-8 MB with valid romdir (RESET + ROMVER). Naming convention ps2-VVVVr-YYYYMMDD.bin (version, region, date)."
-      Common filenames follow the SCPH-XXXXX_BIOS_VYYY_REGION_ZZZ.BIN convention but this is
-      not enforced. The file is loaded into the 4 MB ROM region of EE memory.
 
-  # -- ROM1 (optional, DVD player) --
+  - name: rom1.bin
-  - name: "<biosname>.rom1"
-    pattern: "{biosname}.rom1 or {biosbase}.rom1"
     required: false
-    max_size: 4194304  # 4 MB (Ps2MemSize::Rom1)
+    max_size: 4194304
-    source_ref: "pcsx2/ps2/BiosTools.cpp:214-241"
+    source_ref: "pcsx2/ps2/BiosTools.cpp:214-241,366"
-    note: >
+    note: "DVD player ROM. Tries {biospath}.rom1 then {biosbase}.rom1. Silently skipped if missing."
-      DVD player ROM. Loaded via LoadExtraRom("rom1"). PCSX2 tries two naming patterns:
-      1) Full bios path + ".rom1" appended (e.g. scph70004.bin.rom1)
-      2) Bios path with extension replaced (e.g. scph70004.rom1)
-      Mapped to EE memory at ROM1 region (0x1FC00000 + 4MB offset).
-      Contains DVD player and region detection data (DVDID).
 
-  # -- ROM2 (optional, Chinese ROM extension) --
+  - name: ROM2.BIN
-  - name: "<biosname>.rom2"
-    pattern: "{biosname}.rom2 or {biosbase}.rom2"
     required: false
-    max_size: 4194304  # 4 MB (Ps2MemSize::Rom2)
+    max_size: 4194304
-    source_ref: "pcsx2/ps2/BiosTools.cpp:214-241"
+    source_ref: "pcsx2/ps2/BiosTools.cpp:214-241,367"
-    note: >
+    note: "Chinese ROM extension. Same naming convention as rom1. Only present on Chinese region consoles."
-      Chinese ROM extension. Loaded via LoadExtraRom("rom2"). Same naming convention
-      as rom1: tries appended extension first, then replaced extension.
-      Only present on Chinese region consoles.
 
-  # -- NVM / NVRAM (optional, auto-created) --
+  - name: EROM.BIN
-  - name: "<biosname>.nvm"
+    required: false
-    pattern: "{biosbase}.nvm"
+    source_ref: "pcsx2/ps2/BiosTools.cpp"
+    note: "Extended ROM. Present in some BIOS dumps but not loaded by PCSX2 code via LoadExtraRom."
+    path: null
+
+  - name: eeprom.dat
     required: false
     hle_fallback: true
-    size: 1024  # NVRAM_SIZE = 1024 bytes
+    size: 64
-    source_ref: "pcsx2/CDVD/CDVD.cpp:160-238"
-    note: >
-      EEPROM / NVRAM data. Path derived from BiosPath with extension replaced to ".nvm"
-      (cdvdGetNVRAMPath). Contains console configuration: language, timezone, iLink ID,
-      region parameters, OSD settings. Auto-created with defaults if missing.
-      Two NVM layouts exist: v0.00+ (biosVer 0x000) and v1.70+ (biosVer 0x146).
-
-  # -- MEC file (optional, auto-created) --
-  - name: "<biosname>.mec"
-    pattern: "{biosbase}.mec"
-    required: false
-    hle_fallback: true
-    size: 4  # u32 s_mecha_version
-    source_ref: "pcsx2/CDVD/CDVD.cpp:190-204"
-    note: >
-      Mechacon (mechanism controller) version file. 4 bytes containing the mecha version
-      as a u32 value. Auto-created with DEFAULT_MECHA_VERSION (0x00020603) if missing.
-      Path derived from BiosPath with extension replaced to ".mec".
-
-  # -- IRX override (optional, advanced) --
-  - name: "<custom>.irx"
-    pattern: "*.irx"
-    required: false
-    source_ref: "pcsx2/ps2/BiosTools.cpp:243-256,384-385"
-    note: >
-      Custom IOP Reboot eXecutable module. Loaded into ROM at offset 0x3C0000 if
-      EmuConfig.CurrentIRX is set (path length > 3). Injected at IOP reset (PC=0x1630).
-      Used for debugging/development, not needed for normal operation.
-
-  # -- DEV9 EEPROM (optional, network adapter) --
-  - name: "eeprom.dat"
-    required: false
-    hle_fallback: true
-    size: 64  # 64 bytes, mmap'd
     source_ref: "pcsx2/DEV9/DEV9.cpp:110-160"
-    note: >
+    note: "DEV9 network adapter EEPROM. Falls back to built-in defaults if missing."
-      DEV9 (network adapter / HDD expansion bay) EEPROM data. Fixed filename "eeprom.dat"
-      opened from working directory. Contains network adapter configuration.
-      Falls back to built-in defaults if file not found. Only relevant when using
-      DEV9 features (online play, HDD).
 
-common_bios_filenames:
+  - name: GameIndex.yaml
-  # Japan
+    path: pcsx2/resources/GameIndex.yaml
-  - "SCPH-10000_BIOS_V1_JAP_100.BIN"
+    required: false
-  - "SCPH-15000_BIOS_V3_JAP_120.BIN"
+    mode: libretro
-  - "SCPH-30000_BIOS_V4_JAP_150.BIN"
+    source_ref: "pcsx2/GameDatabase.cpp:48,880"
-  - "SCPH-30001R_BIOS_V7_JAP_160.BIN"
+    note: "Game compatibility database. OSD warning if missing."
-  - "SCPH-30004R_BIOS_V7_JAP_160.BIN"
-  - "SCPH-35000_BIOS_V5_JAP_160.BIN"
-  - "SCPH-50000_BIOS_V9_JAP_170.BIN"
-  - "SCPH-50004_BIOS_V9_JAP_170.BIN"
-  - "SCPH-70000_BIOS_V12_JAP_200.BIN"
-  - "SCPH-75000_BIOS_V14_JAP_220.BIN"
-  - "SCPH-77000_BIOS_V14_JAP_220.BIN"
-  - "SCPH-90000_BIOS_V18_JAP_230.BIN"
-  # USA
-  - "SCPH-30001_BIOS_V4_USA_150.BIN"
-  - "SCPH-39001_BIOS_V6_USA_160.BIN"
-  - "SCPH-50001_BIOS_V9_USA_170.BIN"
-  - "SCPH-50003_BIOS_V9_USA_170.BIN"
-  - "SCPH-70002_BIOS_V12_USA_200.BIN"
-  - "SCPH-70004_BIOS_V12_USA_200.BIN"
-  - "SCPH-70012_BIOS_V12_USA_200.BIN"
-  - "SCPH-75001_BIOS_V14_USA_220.BIN"
-  - "SCPH-77001_BIOS_V14_USA_220.BIN"
-  - "SCPH-90001_BIOS_V18_USA_230.BIN"
-  # Europe
-  - "SCPH-30002_BIOS_V4_EUR_150.BIN"
-  - "SCPH-30003_BIOS_V4_EUR_150.BIN"
-  - "SCPH-30004_BIOS_V4_EUR_150.BIN"
-  - "SCPH-39002_BIOS_V6_EUR_160.BIN"
-  - "SCPH-39003_BIOS_V6_EUR_160.BIN"
-  - "SCPH-39004_BIOS_V6_EUR_160.BIN"
-  - "SCPH-50002_BIOS_V9_EUR_170.BIN"
-  - "SCPH-50004_BIOS_V9_EUR_170.BIN"
-  - "SCPH-70002_BIOS_V12_EUR_200.BIN"
-  - "SCPH-70003_BIOS_V12_EUR_200.BIN"
-  - "SCPH-70004_BIOS_V12_EUR_200.BIN"
-  - "SCPH-70008_BIOS_V12_EUR_200.BIN"
-  - "SCPH-75002_BIOS_V14_EUR_220.BIN"
-  - "SCPH-75003_BIOS_V14_EUR_220.BIN"
-  - "SCPH-75004_BIOS_V14_EUR_220.BIN"
-  - "SCPH-77002_BIOS_V14_EUR_220.BIN"
-  - "SCPH-77003_BIOS_V14_EUR_220.BIN"
-  - "SCPH-77004_BIOS_V14_EUR_220.BIN"
-  - "SCPH-90002_BIOS_V18_EUR_230.BIN"
-  - "SCPH-90003_BIOS_V18_EUR_230.BIN"
-  - "SCPH-90004_BIOS_V18_EUR_230.BIN"
-  # Asia
-  - "SCPH-50009_BIOS_V9_HK_170.BIN"
-  - "SCPH-70005_BIOS_V12_HK_200.BIN"
-  - "SCPH-70006_BIOS_V12_HK_200.BIN"
-  - "SCPH-70008_BIOS_V12_HK_200.BIN"
-  # China
-  - "SCPH-50009_BIOS_V9_CHN_170.BIN"
-  - "SCPH-70006_BIOS_V12_CHN_200.BIN"
 
-memory_layout:
+  - name: cheats_ws.zip
-  ROM:  {offset: "0x1FC00000", size: "4 MB", purpose: "Main BIOS binary"}
+    path: pcsx2/resources/cheats_ws.zip
-  ROM1: {offset: "ROM + 4MB",  size: "4 MB", purpose: "DVD player"}
+    required: false
-  ROM2: {offset: "ROM + 8MB",  size: "4 MB", purpose: "Chinese ROM extension"}
+    mode: libretro
+    source_ref: "pcsx2/VMManager.cpp:340-353"
+    note: "Widescreen patches archive."
 
-nvm_layout:
+  - name: cheats_ni.zip
-  format_0:
+    path: pcsx2/resources/cheats_ni.zip
-    applies_to: "BIOS v0.00+"
+    required: false
-    biosVer: 0x000
+    mode: libretro
-    config0: 0x280
+    source_ref: "pcsx2/VMManager.cpp:375-388"
-    config1: 0x300
+    note: "No-interlacing patches archive."
-    config2: 0x200
-    consoleId: 0x1C8
-    ilinkId: 0x1C0
-    modelNum: 0x1A0
-    regparams: 0x180
-    mac: 0x198
-  format_1:
-    applies_to: "BIOS v1.70+"
-    biosVer: 0x146
-    config0: 0x270
-    config1: 0x2B0
-    config2: 0x200
-    consoleId: 0x1F0
-    ilinkId: 0x1E0
-    modelNum: 0x1B0
-    regparams: 0x180
-    mac: 0x198
-
-notes: |
-  PCSX2 is filename-agnostic for the main BIOS. Detection relies on romdir structure
-  parsing inside the binary itself, not on filename or extension. Any file between 4-8 MB
-  with a valid romdir (containing at least RESET and ROMVER entries) is accepted.
-
-  The ROMVER entry encodes: version (2+2 digits), region letter, console/devel flag,
-  build date (YYYYMMDD), and is used to determine the BIOS description and region.
-
-  Companion files (.nvm, .mec) are auto-created with sane defaults if missing.
-  ROM1/ROM2 are silently skipped if not found - only the main BIOS binary is strictly required.
-
-  PCSX2 no longer ships as a libretro core in official builds. The standalone emulator
-  is the primary distribution channel.
-
-  Devel console BIOSes (< ~2.3 MB) lack the OSD and are handled with NoOSD=true flag.

emulators/rpcs3.yml

@@ -1,32 +1,21 @@
-# RPCS3 emulator firmware profile
-# Generated from source analysis of https://github.com/RPCS3/rpcs3
-# Commit analyzed: HEAD as of 2026-03-17
-
 emulator: RPCS3
 type: standalone
+core_classification: official_port
 source: "https://github.com/RPCS3/rpcs3"
-logo: "https://raw.githubusercontent.com/RPCS3/rpcs3/master/rpcs3/rpcs3.svg"
+upstream: "https://github.com/RPCS3/rpcs3"
-profiled_date: "2026-03-18"
+cores:
+  - rpcs3
+profiled_date: "2026-03-30"
 core_version: "0.0.35"
-display_name: "RPCS3 (PS3)"
+display_name: "Sony - PlayStation 3 (RPCS3)"
 systems: [sony-playstation-3]
 
-firmware_file: "PS3UPDAT.PUP"
+files:
-firmware_source: "https://www.playstation.com/en-us/support/hardware/ps3/system-software/"
+  - name: PS3UPDAT.PUP
-firmware_detection: "pup_header"  # validates PUP magic bytes, HMAC-SHA1 hash per entry
+    required: true
-firmware_install: "extracts dev_flash_* TAR packages from PUP into dev_flash/"
+    storage: large_file
-
+    source_ref: "rpcs3/Loader/PUP.cpp:23-77"
-validation:
+    note: "PUP firmware package. Validated via SCEUF magic + HMAC-SHA1 per entry. Extracted to dev_flash/ at install time."
-  method: "pup_object"
-  magic: "SCEUF"
-  hash_algo: "HMAC-SHA1"
-  source_ref: "rpcs3/Loader/PUP.cpp:8-114"
-  note: "PUP file is validated by magic header, file count, HMAC-SHA1 per entry against PUP_KEY"
-
-firmware_version:
-  path: "dev_flash/vsh/etc/version.txt"
-  source_ref: "rpcs3/util/sysinfo.cpp:686"
-  note: "Read at startup, displayed as 'Firmware version: X.XX'. Missing = 'Missing Firmware'"
 
 # dev_flash filesystem layout extracted from PUP
 dev_flash:

mkdocs.yml

@@ -37,7 +37,11 @@ markdown_extensions:
 - toc:
     permalink: true
 - pymdownx.details
-- pymdownx.superfences
+- pymdownx.superfences:
+    custom_fences:
+    - name: mermaid
+      class: mermaid
+      format: !!python/name:pymdownx.superfences.fence_code_format
 - pymdownx.tabbed:
     alternate_style: true
 plugins:
@@ -132,7 +136,7 @@ nav:
   - ZC: systems/zc.md
 - Emulators:
   - Overview: emulators/index.md
-  - Official ports (61):
+  - Official ports (63):
     - amiarcadia: emulators/amiarcadia.md
     - Amiberry: emulators/amiberry.md
     - Ardens: emulators/ardens.md
@@ -176,9 +180,11 @@ nav:
     - mGBA: emulators/mgba.md
     - Mr.Boom: emulators/mrboom.md
     - Panda3DS: emulators/panda3ds.md
+    - PCSX2: emulators/pcsx2.md
     - PicoDrive: emulators/picodrive.md
     - play: emulators/play.md
     - PPSSPP: emulators/ppsspp.md
+    - RPCS3: emulators/rpcs3.md
     - Rustation: emulators/rustation.md
     - RVVM: emulators/rvvm.md
     - SameBoy: emulators/sameboy.md
@@ -428,7 +434,7 @@ nav:
     - PCSX-ReARMed: emulators/pcsx_rearmed.md
   - Launchers (1):
     - Dolphin Launcher: emulators/dolphin_launcher.md
-  - Other (24):
+  - Other (23):
     - ares: emulators/ares.md
     - Beetle GBA (Mednafen): emulators/beetle_gba.md
     - BigPEmu: emulators/bigpemu.md
@@ -440,12 +446,11 @@ nav:
     - Lexaloffle: emulators/lexaloffle.md
     - Model 2 Emulator: emulators/model2.md
     - openMSX: emulators/openmsx.md
-    - PCSX2: emulators/pcsx2.md
     - Redream: emulators/redream.md
-    - RPCS3: emulators/rpcs3.md
     - Ryujinx: emulators/ryujinx.md
     - shadps4: emulators/shadps4.md
     - Supermodel: emulators/supermodel.md
+    - ti99sim: emulators/ti99sim.md
     - tsugaru: emulators/tsugaru.md
     - VBA-M: emulators/vba_m.md
     - VICE: emulators/vice.md
@@ -457,8 +462,17 @@ nav:
 - Gap Analysis: gaps.md
 - Wiki:
   - Overview: wiki/index.md
+  - Getting started: wiki/getting-started.md
+  - FAQ: wiki/faq.md
+  - Troubleshooting: wiki/troubleshooting.md
   - Architecture: wiki/architecture.md
   - Tools: wiki/tools.md
-  - Profiling guide: wiki/profiling.md
+  - Advanced usage: wiki/advanced-usage.md
+  - Verification modes: wiki/verification-modes.md
   - Data model: wiki/data-model.md
+  - Profiling guide: wiki/profiling.md
+  - Adding a platform: wiki/adding-a-platform.md
+  - Adding a scraper: wiki/adding-a-scraper.md
+  - Testing guide: wiki/testing-guide.md
+  - Release process: wiki/release-process.md
 - Contributing: contributing.md

platforms/_registry.yml

@@ -1,231 +1,870 @@
-# Platform Registry
-# Central configuration for all supported platforms and their scraper sources.
-# Adding a new platform = adding an entry here + creating its YAML config.
-#
-# status: active | archived
-#   active   -- included in automated releases, scraped weekly/monthly
-#   archived -- config preserved, user can generate pack manually, excluded from CI releases
-
 platforms:
   retroarch:
     config: retroarch.yml
     status: active
-    logo: "https://raw.githubusercontent.com/libretro/RetroArch/master/media/retroarch-vector_invader-only.svg"
+    logo: https://raw.githubusercontent.com/libretro/RetroArch/master/media/retroarch-vector_invader-only.svg
     scraper: libretro
-    source_url: "https://raw.githubusercontent.com/libretro/libretro-database/master/dat/System.dat"
+    source_url: https://raw.githubusercontent.com/libretro/libretro-database/master/dat/System.dat
     source_format: clrmamepro_dat
     hash_type: sha1
+    verification_mode: existence
+    base_destination: system
+    case_insensitive_fs: true
     schedule: weekly
     cores: all_libretro
     target_scraper: retroarch_targets
-    target_source: "https://buildbot.libretro.com/nightly/"
+    target_source: https://buildbot.libretro.com/nightly/
     install:
       detect:
-        - os: linux
+      - os: linux
-          method: config_file
+        method: config_file
-          config: "$HOME/.var/app/org.libretro.RetroArch/config/retroarch/retroarch.cfg"
+        config: $HOME/.var/app/org.libretro.RetroArch/config/retroarch/retroarch.cfg
-          parse_key: system_directory
+        parse_key: system_directory
-        - os: linux
+      - os: linux
-          method: config_file
+        method: config_file
-          config: "$HOME/.config/retroarch/retroarch.cfg"
+        config: $HOME/.config/retroarch/retroarch.cfg
-          parse_key: system_directory
+        parse_key: system_directory
-        - os: darwin
+      - os: darwin
-          method: config_file
+        method: config_file
-          config: "$HOME/Library/Application Support/RetroArch/retroarch.cfg"
+        config: $HOME/Library/Application Support/RetroArch/retroarch.cfg
-          parse_key: system_directory
+        parse_key: system_directory
-        - os: windows
+      - os: windows
-          method: config_file
+        method: config_file
-          config: "%APPDATA%\\RetroArch\\retroarch.cfg"
+        config: '%APPDATA%\RetroArch\retroarch.cfg'
-          parse_key: system_directory
+        parse_key: system_directory
-
   batocera:
     config: batocera.yml
     status: active
-    logo: "https://raw.githubusercontent.com/batocera-linux/batocera-emulationstation/master/resources/splash_batocera.svg"
+    logo: https://raw.githubusercontent.com/batocera-linux/batocera-emulationstation/master/resources/splash_batocera.svg
     scraper: batocera
-    source_url: "https://raw.githubusercontent.com/batocera-linux/batocera.linux/master/package/batocera/core/batocera-scripts/scripts/batocera-systems"
+    source_url: https://raw.githubusercontent.com/batocera-linux/batocera.linux/master/package/batocera/core/batocera-scripts/scripts/batocera-systems
     source_format: python_dict
     hash_type: md5
     schedule: weekly
-    cores: [81, a5200, abuse, arduous, atari800, azahar, bennugd, bk, bluemsx, bsnes, bstone, cannonball, cap32, catacombgl, cdogs, cemu, cgenius, citron, clk, corsixth, demul, devilutionx, dhewm3, dice, dolphin, dosbox_pure, dxx-rebirth, easyrpg, ecwolf, eduke32, eka2l1, emuscv, etlegacy, fake08, fallout1-ce, fallout2-ce, fbneo, fceumm, flatpak, flycast, freechaf, freeintv, fury, fuse, gambatte, gearsystem, genesisplusgx, glide64mk2, gong, gsplus, gw, gzdoom, hatari, hcl, hurrican, hypseus-singe, ikemen, ioquake3, iortcw, jazz2-native, lindbergh-loader, lowresnx, lutro, mame, mame078plus, mednafen_lynx, mednafen_ngp, mednafen_supergrafx, mednafen_wswan, melonds, mgba, minivmac, model2emu, moonlight, mrboom, neocd, np2kai, nxengine, o2em, odcommander, openbor6412, openjazz, openjk, openjkdf2, openmohaa, opera, pce_fast, pcfx, pcsx2, pcsx_rearmed, pd777, picodrive, play, pokemini, potator, ppsspp, prboom, prosystem, puae, px68k, pygame, pyxel, quasi88, raze, reminiscence, rpcs3, ruffle, samcoupe, sameduck, scummvm, sdlpop, sh, shadps4, snes9x, solarus, sonic2013, sonic3-air, sonic-mania, steam, stella, superbroswar, supermodel, taradino, tgbdual, theforceengine, theodore, thextech, tic80, tr1x, tr2x, tsugaru, tyrian, tyrquake, uqm, uzem, vb, vecx, vice_x64, vircon32, virtualjaguar, vita3k, vox_official, vpinball, wasm4, wine-tkg, x1, x128, x16emu, xash3d_fwgs, xemu, xenia-canary, xpet, xplus4, xrick, xvic, yabasanshiro, yquake2, zc210]
+    cores:
+    - '81'
+    - a5200
+    - abuse
+    - amiberry
+    - applewin
+    - arduous
+    - atari800
+    - azahar
+    - beetle-saturn
+    - bennugd
+    - bigpemu
+    - bk
+    - blastem
+    - bluemsx
+    - boom3
+    - bsnes
+    - bstone
+    - cannonball
+    - cap32
+    - catacombgl
+    - cdogs
+    - cemu
+    - cgenius
+    - citron
+    - clk
+    - corsixth
+    - demul
+    - desmume
+    - devilutionx
+    - dhewm3
+    - dice
+    - dolphin
+    - dosbox
+    - dosbox_pure
+    - duckstation
+    - dxx-rebirth
+    - easyrpg
+    - ecwolf
+    - eduke32
+    - eka2l1
+    - emuscv
+    - ep128emu-core
+    - etlegacy
+    - fake08
+    - fallout1-ce
+    - fallout2-ce
+    - fbneo
+    - fceumm
+    - flatpak
+    - flycast
+    - fmsx
+    - freechaf
+    - freeintv
+    - freej2me
+    - fsuae
+    - fury
+    - fuse
+    - gambatte
+    - gearcoleco
+    - gearsystem
+    - genesisplusgx
+    - glide64mk2
+    - gong
+    - gpsp
+    - gsplus
+    - gw
+    - gzdoom
+    - handy
+    - hatari
+    - hcl
+    - holani
+    - hurrican
+    - hypseus-singe
+    - ikemen
+    - ioquake3
+    - iortcw
+    - jazz2-native
+    - kronos
+    - lindbergh-loader
+    - lowresnx
+    - lutro
+    - mame
+    - mame078plus
+    - mamemess
+    - mednafen_lynx
+    - mednafen_ngp
+    - mednafen_psx
+    - mednafen_supergrafx
+    - mednafen_wswan
+    - melonds
+    - mesen
+    - mesen-s
+    - mgba
+    - minivmac
+    - model2emu
+    - moonlight
+    - mrboom
+    - mupen64plus-next
+    - neocd
+    - nestopia
+    - np2kai
+    - nxengine
+    - o2em
+    - odcommander
+    - openbor6412
+    - openjazz
+    - openjk
+    - openjkdf2
+    - openmohaa
+    - openmsx
+    - opera
+    - parallel_n64
+    - pce_fast
+    - pcfx
+    - pcsx2
+    - pcsx_rearmed
+    - pd777
+    - picodrive
+    - play
+    - pokemini
+    - potator
+    - ppsspp
+    - prboom
+    - prosystem
+    - puae
+    - puae2021
+    - px68k
+    - pygame
+    - pyxel
+    - quasi88
+    - raze
+    - redream
+    - reminiscence
+    - rpcs3
+    - ruffle
+    - ryujinx
+    - samcoupe
+    - same_cdi
+    - sameduck
+    - scummvm
+    - sdlpop
+    - sh
+    - shadps4
+    - smsplus
+    - snes9x
+    - solarus
+    - sonic-mania
+    - sonic2013
+    - sonic3-air
+    - squirreljme
+    - steam
+    - stella
+    - stella2014
+    - superbroswar
+    - supermodel
+    - swanstation
+    - taradino
+    - tgbdual
+    - theforceengine
+    - theodore
+    - thextech
+    - tic80
+    - tr1x
+    - tr2x
+    - tsugaru
+    - tyrian
+    - tyrquake
+    - uae4arm
+    - uqm
+    - uzem
+    - vb
+    - vba-m
+    - vecx
+    - vemulator
+    - vice
+    - vice_x128
+    - vice_x64
+    - vice_x64sc
+    - vice_xpet
+    - vice_xplus4
+    - vice_xscpu64
+    - vice_xvic
+    - vircon32
+    - virtualjaguar
+    - vita3k
+    - vitaquake2
+    - vox_official
+    - vpinball
+    - wasm4
+    - wine-tkg
+    - x1
+    - x128
+    - x16emu
+    - xash3d_fwgs
+    - xemu
+    - xenia
+    - xenia-canary
+    - xpet
+    - xplus4
+    - xrick
+    - xroar
+    - xvic
+    - yabasanshiro
+    - ymir
+    - yquake2
+    - zc210
     target_scraper: batocera_targets
-    target_source: "https://github.com/batocera-linux/batocera.linux"
+    target_source: https://github.com/batocera-linux/batocera.linux
     install:
       detect:
-        - os: linux
+      - os: linux
-          method: file_exists
+        method: file_exists
-          file: /etc/batocera-version
+        file: /etc/batocera-version
-          bios_path: /userdata/bios
+        bios_path: /userdata/bios
-
   recalbox:
     config: recalbox.yml
     status: active
-    logo: "https://raw.githubusercontent.com/homarr-labs/dashboard-icons/main/svg/recalbox.svg"
+    logo: https://raw.githubusercontent.com/homarr-labs/dashboard-icons/main/svg/recalbox.svg
     scraper: recalbox
-    source_url: "https://gitlab.com/recalbox/recalbox/-/raw/master/board/recalbox/fsoverlay/recalbox/share_init/system/.emulationstation/es_bios.xml"
+    source_url: https://gitlab.com/recalbox/recalbox/-/raw/master/board/recalbox/fsoverlay/recalbox/share_init/system/.emulationstation/es_bios.xml
     source_format: xml
     hash_type: md5
     schedule: monthly
     target_scraper: null
     target_source: null
-    cores: ["2048", 81, a5200, advancemame, amiberry, applewin, arduous, atari800, b2, beebem, bk, bluemsx, boom3, bsnes, bsneshd, cannonball, cap32, cdi2015, corsixth, craft, crocods, daphne, desmume, dice, dinothawr, dirksimple, dolphin, dolphin-gui, dosbox, dosbox_pure, duckstation, easyrpg, ecwolf, emuscv, fake08, fba2x, fbneo, fceumm, flycast, flycast-next, fmsx, freechaf, freeintv, frotz, fuse, gambatte, gearcoleco, geargrafx, gearsystem, genesisplusgx, genesisplusgx_ex, genesisplusgxwide, geolith, glide64mk2, gliden64, gliden64_20, gong, gpsp, gsplus, gw, handy, hatari, hatarib, holani, imageviewer, julius, kronos, lowresnx, lutro, mame0258, mame0278, mame2000, mame2003, mame2003_plus, mame2010, mame2015, mame2016, mednafen_lynx, mednafen_ngp, mednafen_pce_fast, mednafen_pcfx, mednafen_psx, mednafen_psx_hw, mednafen_saturn, mednafen_supafaust, mednafen_supergrafx, mednafen_vb, mednafen_wswan, melonds, mesen, mesen_s, meteor, mgba, minivmac, mojozork, moonlight, mrboom, mu, mupen64plus, mupen64plus_next, n64_gles2, neocd, nestopia, np2kai, nxengine, o2em, openbor, openlara, opera, oricutron, parallel_n64, pcsx2, pcsx_rearmed, pico8, picodrive, pisnes, pokemini, potator, ppsspp, prboom, prosystem, ps2, puae, px68k, quasi88, quicknes, race, rb5000, reicast, reminiscence, retro8, retrodream, rice, rice_gles2, sameboy, same_cdi, sameduck, scummvm, sdlpop, simcoupe, snes9x, snes9x2002, snes9x2005, snes9x2010, solarus, stella, stella2014, stonesoup, supermodel, swanstation, tamalibretro, tgbdual, theodore, thepowdertoy, ti99sim, tic80, tyrquake, uae4all, uae4arm, uzem, vecx, vice_x128, vice_x64, vice_x64sc, vice_xcbm2, vice_xcbm5x0, vice_xpet, vice_xplus4, vice_xscpu64, vice_xvic, virtualjaguar, vitaquake2, vitaquake3, vitavoyager, vpinball, vvvvvv, wasm4, x1, x128, x64, x64sx, xcbm2, xcbm5x0, xemu, xpet, xplus4, xrick, xroar, xscpu64, xvic, yabasanshiro, yabause]
+    cores:
+    - '2048'
+    - '81'
+    - a5200
+    - advancemame
+    - amiberry
+    - applewin
+    - arduous
+    - atari800
+    - b2
+    - beebem
+    - bk
+    - bluemsx
+    - boom3
+    - bsnes
+    - bsneshd
+    - cannonball
+    - cap32
+    - cdi2015
+    - corsixth
+    - craft
+    - crocods
+    - daphne
+    - desmume
+    - dice
+    - dinothawr
+    - dirksimple
+    - dolphin
+    - dolphin-gui
+    - dosbox
+    - dosbox_pure
+    - duckstation
+    - easyrpg
+    - ecwolf
+    - emuscv
+    - fake08
+    - fba2x
+    - fbneo
+    - fceumm
+    - flycast
+    - flycast-next
+    - fmsx
+    - freechaf
+    - freeintv
+    - frotz
+    - fuse
+    - gambatte
+    - gearcoleco
+    - geargrafx
+    - gearsystem
+    - genesisplusgx
+    - genesisplusgx_ex
+    - genesisplusgxwide
+    - geolith
+    - glide64mk2
+    - gliden64
+    - gliden64_20
+    - gong
+    - gpsp
+    - gsplus
+    - gw
+    - handy
+    - hatari
+    - hatarib
+    - holani
+    - imageviewer
+    - julius
+    - kronos
+    - lowresnx
+    - lutro
+    - mame
+    - mame0258
+    - mame0278
+    - mame2000
+    - mame2003
+    - mame2003_plus
+    - mame2010
+    - mame2015
+    - mame2016
+    - mamemess
+    - mednafen_lynx
+    - mednafen_ngp
+    - mednafen_pce_fast
+    - mednafen_pcfx
+    - mednafen_psx
+    - mednafen_psx_hw
+    - mednafen_saturn
+    - mednafen_supafaust
+    - mednafen_supergrafx
+    - mednafen_vb
+    - mednafen_wswan
+    - melonds
+    - mesen
+    - mesen_s
+    - meteor
+    - mgba
+    - minivmac
+    - mojozork
+    - moonlight
+    - mrboom
+    - mu
+    - mupen64plus
+    - mupen64plus_next
+    - n64_gles2
+    - neocd
+    - nestopia
+    - np2kai
+    - nxengine
+    - o2em
+    - openbor
+    - openlara
+    - opera
+    - oricutron
+    - parallel_n64
+    - pcsx2
+    - pcsx_rearmed
+    - pico8
+    - picodrive
+    - pisnes
+    - pokemini
+    - potator
+    - ppsspp
+    - prboom
+    - prosystem
+    - ps2
+    - puae
+    - px68k
+    - quasi88
+    - quicknes
+    - race
+    - rb5000
+    - reicast
+    - reminiscence
+    - retro8
+    - retrodream
+    - rice
+    - rice_gles2
+    - same_cdi
+    - sameboy
+    - sameduck
+    - scummvm
+    - sdlpop
+    - simcoupe
+    - snes9x
+    - snes9x2002
+    - snes9x2005
+    - snes9x2010
+    - solarus
+    - stella
+    - stella2014
+    - stonesoup
+    - supermodel
+    - swanstation
+    - tamalibretro
+    - tgbdual
+    - theodore
+    - thepowdertoy
+    - ti99sim
+    - tic80
+    - tyrquake
+    - uae4all
+    - uae4arm
+    - uzem
+    - vecx
+    - vice_x128
+    - vice_x64
+    - vice_x64sc
+    - vice_xcbm2
+    - vice_xcbm5x0
+    - vice_xpet
+    - vice_xplus4
+    - vice_xscpu64
+    - vice_xvic
+    - virtualjaguar
+    - vitaquake2
+    - vitaquake3
+    - vitavoyager
+    - vpinball
+    - vvvvvv
+    - wasm4
+    - x1
+    - x128
+    - x64
+    - x64sx
+    - xcbm2
+    - xcbm5x0
+    - xemu
+    - xpet
+    - xplus4
+    - xrick
+    - xroar
+    - xscpu64
+    - xvic
+    - yabasanshiro
+    - yabause
     install:
       detect:
-        - os: linux
+      - os: linux
-          method: file_exists
+        method: file_exists
-          file: /usr/bin/recalbox-settings
+        file: /usr/bin/recalbox-settings
-          bios_path: /recalbox/share/bios
+        bios_path: /recalbox/share/bios
-
   retrobat:
     config: retrobat.yml
     status: active
-    logo: "https://raw.githubusercontent.com/RetroBat-Official/retrobat/main/system/resources/retrobat_logo_notext.png"
+    logo: https://raw.githubusercontent.com/RetroBat-Official/retrobat/main/system/resources/retrobat_logo_notext.png
     scraper: retrobat
-    source_url: "https://raw.githubusercontent.com/RetroBat-Official/emulatorlauncher/master/batocera-systems/Resources/batocera-systems.json"
+    source_url: https://raw.githubusercontent.com/RetroBat-Official/emulatorlauncher/master/batocera-systems/Resources/batocera-systems.json
     source_format: json
     hash_type: md5
     schedule: weekly
-    cores: [81, a5200, abuse, arduous, atari800, azahar, bennugd, bk, bluemsx, bsnes, bstone, cannonball, cap32, catacombgl, cdogs, cemu, cgenius, citron, clk, corsixth, demul, devilutionx, dhewm3, dice, dolphin, dosbox_pure, dxx-rebirth, easyrpg, ecwolf, eduke32, eka2l1, emuscv, etlegacy, fake08, fallout1-ce, fallout2-ce, fbneo, fceumm, flatpak, flycast, freechaf, freeintv, fury, fuse, gambatte, gearsystem, genesisplusgx, glide64mk2, gong, gsplus, gw, gzdoom, hatari, hcl, hurrican, hypseus-singe, ikemen, ioquake3, iortcw, jazz2-native, lindbergh-loader, lowresnx, lutro, mame, mame078plus, mednafen_lynx, mednafen_ngp, mednafen_supergrafx, mednafen_wswan, melonds, mgba, minivmac, model2emu, moonlight, mrboom, neocd, np2kai, nxengine, o2em, odcommander, openbor6412, openjazz, openjk, openjkdf2, openmohaa, opera, pce_fast, pcfx, pcsx2, pcsx_rearmed, pd777, picodrive, play, pokemini, potator, ppsspp, prboom, prosystem, puae, px68k, pygame, pyxel, quasi88, raze, reminiscence, rpcs3, ruffle, samcoupe, sameduck, scummvm, sdlpop, sh, shadps4, snes9x, solarus, sonic2013, sonic3-air, sonic-mania, steam, stella, superbroswar, supermodel, taradino, tgbdual, theforceengine, theodore, thextech, tic80, tr1x, tr2x, tsugaru, tyrian, tyrquake, uqm, uzem, vb, vecx, vice_x64, vircon32, virtualjaguar, vita3k, vox_official, vpinball, wasm4, wine-tkg, x1, x128, x16emu, xash3d_fwgs, xemu, xenia-canary, xpet, xplus4, xrick, xvic, yabasanshiro, yquake2, zc210]
+    cores:
+    - '81'
+    - a5200
+    - abuse
+    - arduous
+    - ares
+    - atari800
+    - azahar
+    - bennugd
+    - bk
+    - bluemsx
+    - bsnes
+    - bstone
+    - cannonball
+    - cap32
+    - catacombgl
+    - cdogs
+    - cemu
+    - cgenius
+    - citron
+    - clk
+    - corsixth
+    - demul
+    - devilutionx
+    - dhewm3
+    - dice
+    - dolphin
+    - dosbox_pure
+    - dxx-rebirth
+    - easyrpg
+    - ecwolf
+    - eduke32
+    - eka2l1
+    - emuscv
+    - etlegacy
+    - fake08
+    - fallout1-ce
+    - fallout2-ce
+    - fbalpha2012
+    - fbalpha2012_neogeo
+    - fbneo
+    - fceumm
+    - flatpak
+    - flycast
+    - freechaf
+    - freeintv
+    - freej2me
+    - fury
+    - fuse
+    - gambatte
+    - geargrafx
+    - gearsystem
+    - genesisplusgx
+    - glide64mk2
+    - gong
+    - gsplus
+    - gw
+    - gzdoom
+    - hatari
+    - hcl
+    - hurrican
+    - hypseus-singe
+    - ikemen
+    - ioquake3
+    - iortcw
+    - jazz2-native
+    - lindbergh-loader
+    - lowresnx
+    - lutro
+    - mame
+    - mame078plus
+    - mamemess
+    - mednafen_lynx
+    - mednafen_ngp
+    - mednafen_supergrafx
+    - mednafen_wswan
+    - melonds
+    - mgba
+    - minivmac
+    - model2emu
+    - moonlight
+    - mrboom
+    - mupen64plus_next
+    - neocd
+    - np2kai
+    - nxengine
+    - o2em
+    - odcommander
+    - openbor6412
+    - openjazz
+    - openjk
+    - openjkdf2
+    - openmohaa
+    - opera
+    - parallel_n64
+    - pce_fast
+    - pcfx
+    - pcsx2
+    - pcsx_rearmed
+    - pd777
+    - picodrive
+    - play
+    - pokemini
+    - potator
+    - ppsspp
+    - prboom
+    - prosystem
+    - puae
+    - px68k
+    - pygame
+    - pyxel
+    - quasi88
+    - raze
+    - reminiscence
+    - rpcs3
+    - ruffle
+    - samcoupe
+    - sameduck
+    - scummvm
+    - sdlpop
+    - sh
+    - shadps4
+    - snes9x
+    - solarus
+    - sonic-mania
+    - sonic2013
+    - sonic3-air
+    - squirreljme
+    - steam
+    - stella
+    - superbroswar
+    - supermodel
+    - taradino
+    - tgbdual
+    - theforceengine
+    - theodore
+    - thextech
+    - tic80
+    - tr1x
+    - tr2x
+    - tsugaru
+    - tyrian
+    - tyrquake
+    - uqm
+    - uzem
+    - vb
+    - vecx
+    - vice_x64
+    - vircon32
+    - virtualjaguar
+    - vita3k
+    - vox_official
+    - vpinball
+    - wasm4
+    - wine-tkg
+    - x1
+    - x128
+    - x16emu
+    - xash3d_fwgs
+    - xemu
+    - xenia-canary
+    - xpet
+    - xplus4
+    - xrick
+    - xroar
+    - xvic
+    - yabasanshiro
+    - yquake2
+    - zc210
     target_scraper: null
     target_source: null
     install:
       detect:
-        - os: windows
+      - os: windows
-          method: path_exists
+        method: path_exists
-          path: "%USERPROFILE%\\RetroBat\\bios"
+        path: '%USERPROFILE%\RetroBat\bios'
-
   emudeck:
     config: emudeck.yml
     status: active
-    logo: "https://raw.githubusercontent.com/dragoonDorise/EmuDeck/main/icons/EmuDeck.png"
+    logo: https://raw.githubusercontent.com/dragoonDorise/EmuDeck/main/icons/EmuDeck.png
     scraper: emudeck
-    source_url: "https://raw.githubusercontent.com/dragoonDorise/EmuDeck/main/functions/checkBIOS.sh"
+    source_url: https://raw.githubusercontent.com/dragoonDorise/EmuDeck/main/functions/checkBIOS.sh
-    source_wiki: "https://raw.githubusercontent.com/EmuDeck/emudeck.github.io/main/docs/tables/"
+    source_wiki: https://raw.githubusercontent.com/EmuDeck/emudeck.github.io/main/docs/tables/
     source_format: bash_script+csv
     hash_type: md5
     schedule: weekly
     target_scraper: emudeck_targets
-    target_source: "https://github.com/dragoonDorise/EmuDeck"
+    target_source: https://github.com/dragoonDorise/EmuDeck
-    # dragoonDorise/EmuDeck = official repo (creator's account, 3.4k stars)
-    # EmuDeck/emudeck.github.io = official wiki (org account)
     install:
       detect:
-        - os: linux
+      - os: linux
-          method: config_file
+        method: config_file
-          config: "$HOME/.config/EmuDeck/settings.sh"
+        config: $HOME/.config/EmuDeck/settings.sh
-          parse_key: emulationPath
+        parse_key: emulationPath
-          bios_subdir: bios
+        bios_subdir: bios
-        - os: linux
+      - os: linux
-          method: path_exists
+        method: path_exists
-          path: "$HOME/Emulation/bios"
+        path: $HOME/Emulation/bios
-        - os: windows
+      - os: windows
-          method: config_file
+        method: config_file
-          config: "%APPDATA%\\EmuDeck\\settings.ps1"
+        config: '%APPDATA%\EmuDeck\settings.ps1'
-          parse_key: "$emulationPath"
+        parse_key: $emulationPath
-          bios_subdir: bios
+        bios_subdir: bios
       standalone_copies:
-        - file: prod.keys
+      - file: prod.keys
-          targets:
+        targets:
-            linux:
+          linux:
-              - "$HOME/.local/share/yuzu/keys"
+          - $HOME/.local/share/yuzu/keys
-              - "$HOME/.local/share/eden/keys"
+          - $HOME/.local/share/eden/keys
-              - "$HOME/.config/Ryujinx/system"
+          - $HOME/.config/Ryujinx/system
-            windows:
+          windows:
-              - "%APPDATA%\\yuzu\\keys"
+          - '%APPDATA%\yuzu\keys'
-              - "%APPDATA%\\eden\\keys"
+          - '%APPDATA%\eden\keys'
-        - file: aes_keys.txt
+      - file: aes_keys.txt
-          targets:
+        targets:
-            linux:
+          linux:
-              - "$HOME/Emulation/bios/citra/keys"
+          - $HOME/Emulation/bios/citra/keys
-
   lakka:
     config: lakka.yml
     status: active
-    logo: "https://raw.githubusercontent.com/libretro/retroarch-assets/master/src/xmb/flatui/lakka.svg"
+    logo: https://raw.githubusercontent.com/libretro/retroarch-assets/master/src/xmb/flatui/lakka.svg
     scraper: libretro
     inherits_from: retroarch
     cores: all_libretro
     schedule: weekly
     target_scraper: lakka_targets
-    target_source: "https://buildbot.libretro.com/nightly/"
+    target_source: https://buildbot.libretro.com/nightly/
     install:
       detect:
-        - os: linux
+      - os: linux
-          method: os_release
+        method: os_release
-          id: lakka
+        id: lakka
-          bios_path: /storage/system
+        bios_path: /storage/system
-
   retrodeck:
     config: retrodeck.yml
     status: active
-    logo: "https://raw.githubusercontent.com/RetroDECK/RetroDECK/main/res/icon.svg"
+    logo: https://raw.githubusercontent.com/RetroDECK/RetroDECK/main/res/icon.svg
     scraper: retrodeck
-    source_url: "https://github.com/RetroDECK/components"
+    source_url: https://github.com/RetroDECK/components
     source_format: github_component_manifests
     hash_type: md5
     schedule: monthly
-    cores: [azahar, cemu, dolphin, duckstation, gzdoom, mame, melonds, openbor, pcsx2, pico-8, ppsspp, primehack, retroarch, rpcs3, ruffle, solarus, vita3k, xemu, xroar]
+    cores:
+    - azahar
+    - cemu
+    - clk
+    - dolphin
+    - duckstation
+    - gsplus
+    - gzdoom
+    - mame
+    - melonds
+    - openbor
+    - pcsx2
+    - pico-8
+    - ppsspp
+    - primehack
+    - retroarch
+    - rpcs3
+    - ruffle
+    - solarus
+    - vita3k
+    - xemu
+    - xroar
     target_scraper: null
     target_source: null
-    # Each component/<name>/component_manifest.json declares BIOS requirements
-    # Scraper enumerates top-level dirs via GitHub API, fetches each manifest directly
     install:
       detect:
-        - os: linux
+      - os: linux
-          method: path_exists
+        method: path_exists
-          path: "$HOME/.var/app/net.retrodeck.retrodeck"
+        path: $HOME/.var/app/net.retrodeck.retrodeck
-          bios_path: "$HOME/retrodeck/bios"
+        bios_path: $HOME/retrodeck/bios
-
   romm:
     config: romm.yml
     status: active
-    logo: "https://avatars.githubusercontent.com/u/168586850"
+    logo: https://avatars.githubusercontent.com/u/168586850
     scraper: romm
-    source_url: "https://raw.githubusercontent.com/rommapp/romm/master/backend/models/fixtures/known_bios_files.json"
+    source_url: https://raw.githubusercontent.com/rommapp/romm/master/backend/models/fixtures/known_bios_files.json
     source_format: json
     hash_type: sha1
     schedule: monthly
-    inherits_from: emulatorjs  # cores inherited from emulatorjs.yml
+    inherits_from: emulatorjs
     target_scraper: null
     target_source: null
     install:
       detect:
-        - os: linux
+      - os: linux
-          method: path_exists
+        method: path_exists
-          path: /romm/library/bios
+        path: /romm/library/bios
-
+    cores:
+    - atari800
+    - clk
+    - directxbox
+    - dolphin
+    - dolphin_launcher
+    - ecwolf
+    - ep128emu
+    - ep128emu_core
+    - freej2me
+    - hatari
+    - ishiiruka
+    - lrps2
+    - minivmac
+    - nekop2
+    - np2kai
+    - o2em
+    - pcsx2
+    - play
+    - pokemini
+    - primehack
+    - px68k
+    - scummvm
+    - squirreljme
+    - x1
+    - xemu
   retropie:
     config: retropie.yml
-    status: archived  # Last release: v4.8 (March 2022) - no update in 4 years
+    status: archived
-    logo: "https://avatars.githubusercontent.com/u/11378204"
+    logo: https://avatars.githubusercontent.com/u/11378204
     scraper: null
     cores: all_libretro
     schedule: null
     target_scraper: retropie_targets
-    target_source: "https://retropie.org.uk/stats/pkgflags/"
+    target_source: https://retropie.org.uk/stats/pkgflags/
     install:
       detect:
-        - os: linux
+      - os: linux
-          method: path_exists
+        method: path_exists
-          path: "$HOME/RetroPie/BIOS"
+        path: $HOME/RetroPie/BIOS
-
   bizhawk:
     config: bizhawk.yml
     status: active
-    logo: "https://raw.githubusercontent.com/TASEmulators/BizHawk/master/Assets/bizhawk.ico"
+    logo: https://raw.githubusercontent.com/TASEmulators/BizHawk/master/Assets/bizhawk.ico
     scraper: bizhawk
-    source_url: "https://raw.githubusercontent.com/TASEmulators/BizHawk/master/src/BizHawk.Emulation.Common/Database/FirmwareDatabase.cs"
+    source_url: https://raw.githubusercontent.com/TASEmulators/BizHawk/master/src/BizHawk.Emulation.Common/Database/FirmwareDatabase.cs
     source_format: csharp_firmware_database
     hash_type: sha1
     schedule: monthly
-    cores: [gambatte, mgba, sameboy, melonds, snes9x, bsnes, beetle_psx, beetle_saturn, beetle_pce, beetle_pcfx, beetle_wswan, beetle_vb, beetle_ngp, opera, stella, picodrive, ppsspp, handy, quicknes, genesis_plus_gx, ares, mupen64plus_next, puae, prboom, virtualjaguar, vice_x64, mame]
+    cores:
+    - applewin
+    - ares
+    - azahar
+    - beetle_ngp
+    - beetle_pce
+    - beetle_pcfx
+    - beetle_psx
+    - beetle_saturn
+    - beetle_vb
+    - beetle_wswan
+    - bsnes
+    - citra
+    - citra2018
+    - citra_canary
+    - clk
+    - fbneo
+    - freechaf
+    - freeintv
+    - gambatte
+    - genesis_plus_gx
+    - handy
+    - mame
+    - melonds
+    - mgba
+    - mupen64plus_next
+    - numero
+    - o2em
+    - opera
+    - panda3ds
+    - picodrive
+    - ppsspp
+    - prboom
+    - prosystem
+    - puae
+    - quicknes
+    - sameboy
+    - snes9x
+    - stella
+    - trident
+    - vecx
+    - vice_x64
+    - virtualjaguar
     target_scraper: null
     target_source: null
     install:
       detect:
-        - os: windows
+      - os: windows
-          method: path_exists
+        method: path_exists
-          path: "%USERPROFILE%\\BizHawk\\Firmware"
+        path: '%USERPROFILE%\BizHawk\Firmware'
-        - os: linux
+      - os: linux
-          method: path_exists
+        method: path_exists
-          path: "$HOME/.config/BizHawk/Firmware"
+        path: $HOME/.config/BizHawk/Firmware

platforms/retroarch.yml

@@ -4,10 +4,8 @@ dat_version: v1.19.0
 homepage: https://www.retroarch.com
 source: https://github.com/libretro/libretro-database/blob/master/dat/System.dat
 base_destination: system
-cores: all_libretro
 hash_type: sha1
 verification_mode: existence
-case_insensitive_fs: true
 systems:
   3do:
     files:
@@ -102,6 +100,7 @@ systems:
       md5: 35fa1a1ebaaeea286dc5cd15487c13ea
       crc32: d5cbc509
       size: 1048576
+    native_id: 3DO Company, The - 3DO
     core: opera
     manufacturer: Panasonic|GoldStar|Sanyo
     docs: https://docs.libretro.com/library/opera/
@@ -135,6 +134,7 @@ systems:
       md5: 25629dfe870d097469c217b95fdc1c95
       crc32: 1fe22ecd
       size: 16384
+    native_id: Amstrad - CPC
   arcade:
     files:
     - name: bubsys.zip
@@ -249,6 +249,10 @@ systems:
     - name: aes.zip
       destination: aes.zip
       required: true
+    native_id: Arcade
+    core: fbneo
+    manufacturer: Various
+    docs: https://docs.libretro.com/library/fbneo/
     data_directories:
     - ref: fbneo-hiscore
       destination: ''
@@ -256,9 +260,6 @@ systems:
       destination: fbneo
     - ref: fbneo-samples
       destination: fbneo
-    core: fbneo
-    manufacturer: Various
-    docs: https://docs.libretro.com/library/fbneo/
   atari-400-800:
     files:
     - name: ATARIBAS.ROM
@@ -303,6 +304,7 @@ systems:
       md5: d7eb37aec6960cba36bc500e0e5d00bc
       crc32: bdca01fb
       size: 8192
+    native_id: Atari - 400-800
   atari-5200:
     files:
     - name: 5200.rom
@@ -312,6 +314,7 @@ systems:
       md5: 281f20ea4320404ec820fb7ec0693b38
       crc32: 4248d3e3
       size: 2048
+    native_id: Atari - 5200
     core: a5200
     manufacturer: Atari
     docs: https://docs.libretro.com/library/a5200/
@@ -331,6 +334,7 @@ systems:
       md5: 0763f1ffb006ddbe32e52d497ee848ae
       crc32: 5d13730c
       size: 4096
+    native_id: Atari - 7800
     core: prosystem
     manufacturer: Atari
     docs: https://docs.libretro.com/library/prosystem/
@@ -343,6 +347,7 @@ systems:
       md5: fcd403db69f54290b51035d82f835e7b
       crc32: 0d973c9d
       size: 512
+    native_id: Atari - Lynx
     core: handy
     manufacturer: Atari
     docs: https://docs.libretro.com/library/handy/
@@ -355,6 +360,7 @@ systems:
       md5: c1c57ce48e8ee4135885cee9e63a68a2
       crc32: d3c32283
       size: 196608
+    native_id: Atari - ST
     core: hatari
     manufacturer: Atari
     docs: https://docs.libretro.com/library/hatari/
@@ -376,6 +382,7 @@ systems:
     - name: bioscv.rom
       destination: bioscv.rom
       required: true
+    native_id: Coleco - ColecoVision
   commodore-amiga:
     files:
     - name: kick33180.A500
@@ -462,6 +469,7 @@ systems:
       md5: bb72565701b1b6faece07d68ea5da639
       crc32: 87746be2
       size: 524288
+    native_id: Commodore - Amiga
     core: puae
     manufacturer: Commodore
     docs: https://docs.libretro.com/library/puae/
@@ -510,6 +518,7 @@ systems:
       destination: scpu-dos-2.04.bin
       required: true
       md5: b2869f8678b8b274227f35aad26ba509
+    native_id: Commodore - C128
     core: vice_x128
     manufacturer: Commodore
     docs: https://docs.libretro.com/library/vice_x128/
@@ -522,6 +531,7 @@ systems:
       md5: a2e891e330d146c4046c2b622fc31462
       crc32: 683ed4ad
       size: 5763199
+    native_id: Dinothawr
   dos:
     files:
     - name: MT32_CONTROL.ROM
@@ -552,6 +562,7 @@ systems:
       md5: 08cdcfa0ed93e9cb16afa76e6ac5f0a4
       crc32: 4b961eba
       size: 1048576
+    native_id: DOS
   elektronika-bk:
     files:
     - name: B11M_BOS.ROM
@@ -610,6 +621,7 @@ systems:
       md5: 95f8c41c6abf7640e35a6a03cecebd01
       crc32: 26c6e8a0
       size: 8192
+    native_id: Elektronika - BK-0010/BK-0011(M)
   enterprise-64-128:
     files:
     - name: hun.rom
@@ -696,6 +708,7 @@ systems:
       md5: 55af78f877a21ca45eb2df68a74fcc60
       crc32: c099a5e3
       size: 65536
+    native_id: Enterprise - 64/128
     includes:
     - ep128emu
   epoch-scv:
@@ -707,6 +720,7 @@ systems:
       md5: 635a978fd40db9a18ee44eff449fc126
       crc32: 7ac06182
       size: 4096
+    native_id: EPOCH/YENO Super Cassette Vision
   fairchild-channel-f:
     files:
     - name: sl31253.bin
@@ -730,6 +744,7 @@ systems:
       md5: 95d339631d867c8f1d15a5f2ec26069d
       crc32: 015c1e38
       size: 1024
+    native_id: Fairchild Channel F
   doom:
     files:
     - name: prboom.wad
@@ -739,6 +754,7 @@ systems:
       md5: 72ae1b47820fcc93cc0df9c428d0face
       crc32: a5751b99
       size: 143312
+    native_id: Id Software - Doom
   j2me:
     files:
     - name: freej2me-lr.jar
@@ -762,6 +778,7 @@ systems:
       md5: 29a92d0867da2917275b7c6c805d256f
       crc32: ffb98ffa
       size: 552039
+    native_id: J2ME
     core: freej2me
     manufacturer: Java
     docs: https://docs.libretro.com/library/freej2me/
@@ -774,6 +791,7 @@ systems:
       md5: 66223be1497460f1e60885eeb35e03cc
       crc32: 4df6d054
       size: 262144
+    native_id: MacII
   magnavox-odyssey2:
     files:
     - name: o2rom.bin
@@ -804,6 +822,7 @@ systems:
       md5: 279008e4a0db2dc5f1c048853b033828
       crc32: 11647ca5
       size: 1024
+    native_id: Magnavox - Odyssey2
     core: o2em
     manufacturer: Magnavox|Philips
     docs: https://docs.libretro.com/library/o2em/
@@ -823,6 +842,7 @@ systems:
       md5: 0cd5946c6473e42e8e4c2137785e427f
       crc32: 683a4158
       size: 2048
+    native_id: Mattel - Intellivision
     data_directories:
     - ref: freeintv-overlays
       destination: freeintv_overlays
@@ -933,6 +953,7 @@ systems:
       md5: 279efd1eae0d358eecd4edc7d9adedf3
       crc32: ab6874f8
       size: 16640
+    native_id: Microsoft - MSX
     core: bluemsx
     manufacturer: Spectravideo|Philips|Al Alamiah|Sony|Sanyo|Mitsubishi|Toshiba|Hitachi|Panasonic|Canon|Casio|Pioneer|Fujitsu|Yamaha|JVC|Kyocera|GoldStar|Samsung|Daewoo|Gradiente|Sharp|Talent|NTT|ACVS/CIEL|DDX|AGE
       Labs
@@ -991,6 +1012,7 @@ systems:
       md5: 0754f903b52e3b3342202bdafb13efa5
       crc32: 2b5b75fe
       size: 262144
+    native_id: NEC - PC Engine - TurboGrafx 16 - SuperGrafx
     core: mednafen_pce_fast
     manufacturer: NEC
     docs: https://docs.libretro.com/library/mednafen_pce_fast/
@@ -1073,6 +1095,7 @@ systems:
       md5: 524473c1a5a03b17e21d86a0408ff827
       crc32: fe9f57f2
       size: 16384
+    native_id: NEC - PC-98
     core: np2kai
     manufacturer: NEC
     docs: https://docs.libretro.com/library/np2kai/
@@ -1115,6 +1138,7 @@ systems:
       md5: e2fb7c7220e3a7838c2dd7e401a7f3d8
       crc32: 236102c9
       size: 1048576
+    native_id: NEC - PC-FX
     core: mednafen_pcfx
     manufacturer: NEC
     docs: https://docs.libretro.com/library/mednafen_pcfx/
@@ -1134,6 +1158,7 @@ systems:
       md5: 7f98d77d7a094ad7d069b74bd553ec98
       crc32: 4c514089
       size: 24592
+    native_id: Nintendo - Famicom Disk System
   nintendo-gb:
     files:
     - name: dmg_boot.bin
@@ -1150,6 +1175,7 @@ systems:
       md5: 32fbbd84168d3482956eb3c5051637f5
       crc32: 59c8598e
       size: 256
+    native_id: Nintendo - Gameboy
     core: gambatte
     manufacturer: Nintendo
     docs: https://docs.libretro.com/library/gambatte/
@@ -1162,6 +1188,7 @@ systems:
       md5: a860e8c0b6d573d191e4ec7db1b1e4f6
       crc32: '81977335'
       size: 16384
+    native_id: Nintendo - Game Boy Advance
     core: gpsp
     manufacturer: Nintendo
     docs: https://docs.libretro.com/library/gpsp/
@@ -1181,6 +1208,7 @@ systems:
       md5: dbfce9db9deaa2567f6a84fde55f9680
       crc32: 41884e46
       size: 2304
+    native_id: Nintendo - Gameboy Color
   nintendo-gamecube:
     files:
     - name: gc-dvd-20010608.bin
@@ -1274,6 +1302,7 @@ systems:
     - name: font_japanese.bin
       destination: dolphin-emu/Sys/GC/font_japanese.bin
       required: false
+    native_id: Nintendo - GameCube
     core: dolphin
     manufacturer: Nintendo
     docs: https://docs.libretro.com/library/dolphin/
@@ -1289,6 +1318,7 @@ systems:
       md5: 8d3d9f294b6e174bc7b1d2fd1c727530
       crc32: 7f933ce2
       size: 4194304
+    native_id: Nintendo - Nintendo 64DD
   nintendo-ds:
     files:
     - name: bios7.bin
@@ -1324,6 +1354,7 @@ systems:
     - name: dsi_nand.bin
       destination: dsi_nand.bin
       required: true
+    native_id: Nintendo - Nintendo DS
     core: desmume
     manufacturer: Nintendo
     docs: https://docs.libretro.com/library/desmume/
@@ -1332,10 +1363,11 @@ systems:
     - name: NstDatabase.xml
       destination: NstDatabase.xml
       required: true
-      sha1: f92312bae56e29c5bf00a5103105fce78472bf5c
+      sha1: 26322f182540211e9b5e3647675b7c593706ae2b
-      md5: 0ee6cbdc6f5c96ce9c8aa5edb59066f4
+      md5: 7bfe8c0540ed4bd6a0f1e2a0f0118ced
-      crc32: 0e4d552b
+      crc32: ebb2196c
       size: 1009534
+    native_id: Nintendo - Nintendo Entertainment System
     core: fceumm
     manufacturer: Nintendo
     docs: https://docs.libretro.com/library/fceumm/
@@ -1348,6 +1380,7 @@ systems:
       md5: 1e4fb124a3a886865acb574f388c803d
       crc32: aed3c14d
       size: 4096
+    native_id: Nintendo - Pokemon Mini
   nintendo-satellaview:
     files:
     - name: BS-X.bin
@@ -1371,6 +1404,7 @@ systems:
       md5: 4ed9648505ab33a4daec93707b16caba
       crc32: 8c573c7e
       size: 1048576
+    native_id: Nintendo - Satellaview
   nintendo-sufami-turbo:
     files:
     - name: STBIOS.bin
@@ -1380,6 +1414,7 @@ systems:
       md5: d3a44ba7d42a74d3ac58cb9c14c6a5ca
       crc32: 9b4ca911
       size: 262144
+    native_id: Nintendo - SuFami Turbo
   nintendo-sgb:
     files:
     - name: SGB1.sfc
@@ -1441,6 +1476,7 @@ systems:
     - name: sgb.boot.rom
       destination: sgb.boot.rom
       required: false
+    native_id: Nintendo - Super Game Boy
   nintendo-snes:
     files:
     - name: cx4.data.rom
@@ -1562,6 +1598,7 @@ systems:
       md5: dda40ccd57390c96e49d30a041f9a9e7
       crc32: f73d5e10
       size: 131072
+    native_id: Nintendo - Super Nintendo Entertainment System
     core: bsnes
     manufacturer: Nintendo
     docs: https://docs.libretro.com/library/bsnes/
@@ -1588,6 +1625,7 @@ systems:
       md5: 279008e4a0db2dc5f1c048853b033828
       crc32: 11647ca5
       size: 1024
+    native_id: Phillips - Videopac+
   sega-dreamcast:
     files:
     - name: dc_boot.bin
@@ -1611,6 +1649,7 @@ systems:
       md5: 0a93f7940c455905bea6e392dfde92a4
       crc32: c611b498
       size: 131072
+    native_id: Sega - Dreamcast
     core: flycast
     manufacturer: Sega
     docs: https://docs.libretro.com/library/flycast/
@@ -1668,6 +1707,7 @@ systems:
     - name: segasp.zip
       destination: dc/segasp.zip
       required: true
+    native_id: Sega - Dreamcast-based Arcade
   sega-game-gear:
     files:
     - name: bios.gg
@@ -1677,6 +1717,7 @@ systems:
       md5: 672e104c3be3a238301aceffc3b23fd6
       crc32: 0ebea9d4
       size: 1024
+    native_id: Sega - Game Gear
   sega-master-system:
     files:
     - name: bios.sms
@@ -1707,6 +1748,7 @@ systems:
       md5: 840481177270d5642a14ca71ee72844c
       crc32: 0072ed54
       size: 8192
+    native_id: Sega - Master System - Mark III
   sega-mega-cd:
     files:
     - name: bios_CD_E.bin
@@ -1730,6 +1772,7 @@ systems:
       md5: 2efd74e3232ff260e371b99f84024f7f
       crc32: c6d10268
       size: 131072
+    native_id: Sega - Mega CD - Sega CD
   sega-mega-drive:
     files:
     - name: areplay.bin
@@ -1774,6 +1817,7 @@ systems:
       md5: b4e76e416b887f4e7413ba76fa735f16
       crc32: 4dcfd55c
       size: 262144
+    native_id: Sega - Mega Drive - Genesis
     core: genesis_plus_gx
     manufacturer: Sega
     docs: https://docs.libretro.com/library/genesis_plus_gx/
@@ -1859,6 +1903,7 @@ systems:
     - name: stvbios.zip
       destination: kronos/stvbios.zip
       required: true
+    native_id: Sega - Saturn
     core: kronos
     manufacturer: Sega
     docs: https://docs.libretro.com/library/kronos/
@@ -1880,6 +1925,7 @@ systems:
       md5: 851e4a5936f17d13f8c39a980cf00d77
       crc32: e3995a57
       size: 2048
+    native_id: Sharp - X1
     core: x1
     manufacturer: Sharp
     docs: https://docs.libretro.com/library/x1/
@@ -1920,6 +1966,7 @@ systems:
       md5: 0617321daa182c3f3d6f41fd02fb3275
       crc32: 00eeb408
       size: 131072
+    native_id: Sharp - X68000
     core: px68k
     manufacturer: Sharp
     docs: https://docs.libretro.com/library/px68k/
@@ -2270,6 +2317,7 @@ systems:
       md5: 85fede415f4294cc777517d7eada482e
       crc32: 2cbe8995
       size: 32768
+    native_id: Sinclair - ZX Spectrum
     core: fuse
     manufacturer: Sinclair|Amstrad
     docs: https://docs.libretro.com/library/fuse/
@@ -2352,6 +2400,7 @@ systems:
       md5: 08ca8b2dba6662e8024f9e789711c6fc
       crc32: ff3abc59
       size: 524288
+    native_id: SNK - NeoGeo CD
     core: neocd
     manufacturer: SNK
     docs: https://docs.libretro.com/library/neocd/
@@ -2511,6 +2560,7 @@ systems:
       md5: 81bbe60ba7a3d1cea1d48c14cbcc647b
       crc32: 2f53b852
       size: 524288
+    native_id: Sony - PlayStation
     core: duckstation
     manufacturer: Sony
     docs: https://docs.libretro.com/library/duckstation/
@@ -3027,6 +3077,7 @@ systems:
       md5: d3e81e95db25f5a86a7b7474550a2155
       crc32: 4e8c160c
       size: 4194304
+    native_id: Sony - PlayStation 2
   sony-psp:
     files:
     - name: ppge_atlas.zim
@@ -3036,6 +3087,7 @@ systems:
       md5: 866855cc330b9b95cc69135fb7b41d38
       crc32: 7b57fa78
       size: 666530
+    native_id: Sony - PlayStation Portable
     core: ppsspp
     manufacturer: Sony
     docs: https://docs.libretro.com/library/ppsspp/
@@ -3065,6 +3117,7 @@ systems:
       md5: d4448d09bbfde687c04f9e3310e023ab
       crc32: 4bf05697
       size: 262144
+    native_id: Texas Instruments TI-83
     core: numero
     manufacturer: Texas Instruments
     docs: https://docs.libretro.com/library/numero/
@@ -3098,6 +3151,7 @@ systems:
       md5: 88dc7876d584f90e4106f91444ab23b7
       crc32: 1466aed4
       size: 16384
+    native_id: Videoton - TV Computer
   wolfenstein-3d:
     files:
     - name: ecwolf.pk3
@@ -3107,6 +3161,7 @@ systems:
       md5: c011b428819eea4a80b455c245a5a04d
       crc32: 26dc3fba
       size: 178755
+    native_id: Wolfenstein 3D
   scummvm:
     files:
     - name: scummvm.zip
@@ -3116,6 +3171,7 @@ systems:
       md5: a17e0e0150155400d8cced329563d9c8
       crc32: a93f1c4b
       size: 9523360
+    native_id: ScummVM
     core: scummvm
     manufacturer: Various
     docs: https://docs.libretro.com/library/scummvm/
@@ -3141,3 +3197,5 @@ systems:
     core: xrick
     manufacturer: Other
     docs: https://docs.libretro.com/library/xrick/
+case_insensitive_fs: true
+cores: all_libretro

platforms/retrobat.yml

@@ -1,170 +1,10 @@
 platform: RetroBat
 version: 7.5.3
-homepage: "https://www.retrobat.org"
+homepage: https://www.retrobat.org
-source: "https://raw.githubusercontent.com/RetroBat-Official/emulatorlauncher/master/batocera-systems/Resources/batocera-systems.json"
+source: https://raw.githubusercontent.com/RetroBat-Official/emulatorlauncher/master/batocera-systems/Resources/batocera-systems.json
 base_destination: bios
 hash_type: md5
 verification_mode: md5
-case_insensitive_fs: true
-cores:
-  - 81
-  - a5200
-  - abuse
-  - arduous
-  - atari800
-  - azahar
-  - bennugd
-  - bk
-  - bluemsx
-  - bsnes
-  - bstone
-  - cannonball
-  - cap32
-  - catacombgl
-  - cdogs
-  - cemu
-  - cgenius
-  - citron
-  - clk
-  - corsixth
-  - demul
-  - devilutionx
-  - dhewm3
-  - dice
-  - dolphin
-  - dosbox_pure
-  - dxx-rebirth
-  - easyrpg
-  - ecwolf
-  - eduke32
-  - eka2l1
-  - emuscv
-  - etlegacy
-  - fake08
-  - fallout1-ce
-  - fallout2-ce
-  - fbneo
-  - fceumm
-  - flatpak
-  - flycast
-  - freechaf
-  - freeintv
-  - fury
-  - fuse
-  - gambatte
-  - gearsystem
-  - genesisplusgx
-  - glide64mk2
-  - gong
-  - gsplus
-  - gw
-  - gzdoom
-  - hatari
-  - hcl
-  - hurrican
-  - hypseus-singe
-  - ikemen
-  - ioquake3
-  - iortcw
-  - jazz2-native
-  - lindbergh-loader
-  - lowresnx
-  - lutro
-  - mame
-  - mame078plus
-  - mednafen_lynx
-  - mednafen_ngp
-  - mednafen_supergrafx
-  - mednafen_wswan
-  - melonds
-  - mgba
-  - minivmac
-  - model2emu
-  - moonlight
-  - mrboom
-  - neocd
-  - np2kai
-  - nxengine
-  - o2em
-  - odcommander
-  - openbor6412
-  - openjazz
-  - openjk
-  - openjkdf2
-  - openmohaa
-  - opera
-  - pce_fast
-  - pcfx
-  - pcsx2
-  - pcsx_rearmed
-  - pd777
-  - picodrive
-  - play
-  - pokemini
-  - potator
-  - ppsspp
-  - prboom
-  - prosystem
-  - puae
-  - px68k
-  - pygame
-  - pyxel
-  - quasi88
-  - raze
-  - reminiscence
-  - rpcs3
-  - ruffle
-  - samcoupe
-  - sameduck
-  - scummvm
-  - sdlpop
-  - sh
-  - shadps4
-  - snes9x
-  - solarus
-  - sonic2013
-  - sonic3-air
-  - sonic-mania
-  - steam
-  - stella
-  - superbroswar
-  - supermodel
-  - taradino
-  - tgbdual
-  - theforceengine
-  - theodore
-  - thextech
-  - tic80
-  - tr1x
-  - tr2x
-  - tsugaru
-  - tyrian
-  - tyrquake
-  - uqm
-  - uzem
-  - vb
-  - vecx
-  - vice_x64
-  - vircon32
-  - virtualjaguar
-  - vita3k
-  - vox_official
-  - vpinball
-  - wasm4
-  - wine-tkg
-  - x1
-  - x128
-  - x16emu
-  - xash3d_fwgs
-  - xemu
-  - xenia-canary
-  - xpet
-  - xplus4
-  - xrick
-  - xvic
-  - yabasanshiro
-  - yquake2
-  - zc210
 systems:
   3do:
     files:
@@ -425,12 +265,12 @@ systems:
       md5: 281f20ea4320404ec820fb7ec0693b38
   atari7800:
     files:
-    - name: "7800 BIOS (E).rom"
+    - name: 7800 BIOS (E).rom
-      destination: "7800 BIOS (E).rom"
+      destination: 7800 BIOS (E).rom
       required: true
       md5: 397bb566584be7b9764e7a68974c4263
-    - name: "7800 BIOS (U).rom"
+    - name: 7800 BIOS (U).rom
-      destination: "7800 BIOS (U).rom"
+      destination: 7800 BIOS (U).rom
       required: true
       md5: 0763f1ffb006ddbe32e52d497ee848ae
     - name: ProSystem.dat
@@ -548,6 +388,40 @@ systems:
     - name: bbcmc_flop.xml
       destination: mame/hash/bbcmc_flop.xml
       required: true
+  bk:
+    files:
+    - name: B11M_BOS.ROM
+      destination: bk/B11M_BOS.ROM
+      required: true
+      md5: fe4627d1e3a1535874085050733263e7
+    - name: B11M_EXT.ROM
+      destination: bk/B11M_EXT.ROM
+      required: true
+      md5: dc52f365d56fa1951f5d35b1101b9e3f
+    - name: BAS11M_0.ROM
+      destination: bk/BAS11M_0.ROM
+      required: true
+      md5: 946f6f23ded03c0e26187f0b3ca75993
+    - name: BAS11M_1.ROM
+      destination: bk/BAS11M_1.ROM
+      required: true
+      md5: 1e6637f32aa7d1de03510030cac40bcf
+    - name: DISK_327.ROM
+      destination: bk/DISK_327.ROM
+      required: true
+      md5: 5015228eeeb238e65da8edcd1b6dfac7
+    - name: BASIC10.ROM
+      destination: bk/BASIC10.ROM
+      required: true
+      md5: 3fa774326d75410a065659aea80252f0
+    - name: FOCAL10.ROM
+      destination: bk/FOCAL10.ROM
+      required: true
+      md5: 5737f972e8638831ab71e9139abae052
+    - name: MONIT10.ROM
+      destination: bk/MONIT10.ROM
+      required: true
+      md5: 95f8c41c6abf7640e35a6a03cecebd01
   loopy:
     files:
     - name: casloopy.zip
@@ -845,34 +719,30 @@ systems:
       md5: a6f31483d1da4558cc19025e21f95c1d
   jaguar:
     files:
-    - name: "[BIOS] Atari Jaguar (World).j64"
+    - name: '[BIOS] Atari Jaguar (World).j64'
-      destination: "[BIOS] Atari Jaguar (World).j64"
+      destination: '[BIOS] Atari Jaguar (World).j64'
       required: true
       md5: bcfe348c565d9dedb173822ee6850dea
   laseractive:
     files:
-    - name: "[BIOS] LaserActive PAC-N1 (Japan) (v1.02).bin"
+    - name: '[BIOS] LaserActive PAC-N1 (Japan) (v1.02).bin'
-      destination: "laseractive/[BIOS] LaserActive PAC-N1 (Japan) (v1.02).bin"
+      destination: laseractive/[BIOS] LaserActive PAC-N1 (Japan) (v1.02).bin
       required: true
       md5: f69f173b251d8bf7649b10a9167a10bf
-    - name: "[BIOS] LaserActive PAC-N10 (US) (v1.02).bin"
+    - name: '[BIOS] LaserActive PAC-N10 (US) (v1.02).bin'
-      destination: "laseractive/[BIOS] LaserActive PAC-N10 (US) (v1.02).bin"
+      destination: laseractive/[BIOS] LaserActive PAC-N10 (US) (v1.02).bin
       required: true
       md5: f0fb8a4605ac7eefbafd4f2d5a793cc8
-    - name: "[BIOS] LaserActive PCE-LP1 (Japan) (v1.02).bin"
+    - name: '[BIOS] LaserActive PCE-LP1 (Japan) (v1.02).bin'
-      destination: "laseractive/[BIOS] LaserActive PCE-LP1 (Japan) (v1.02).bin"
+      destination: laseractive/[BIOS] LaserActive PCE-LP1 (Japan) (v1.02).bin
       required: true
       md5: 761fea207d0eafd4cfd78da7c44cac88
-    - name: "Pioneer LaserActive Sega PAC Boot ROM v1.02 (1993)(Pioneer - Sega)(JP)(en-ja).bin"
+    - name: '[BIOS] LaserActive PAC-S10 (US) (v1.04).bin'
-      destination: "laseractive/Pioneer LaserActive Sega PAC Boot ROM v1.02 (1993)(Pioneer\
+      destination: laseractive/[BIOS] LaserActive PAC-S10 (US) (v1.04).bin
-        \ - Sega)(JP)(en-ja).bin"
       required: true
-      md5: a5a2f9aae57d464bc66b80ee79c3da6e
+    - name: '[BIOS] LaserActive PAC-S1 (Japan) (v1.05).bin'
-    - name: "Pioneer LaserActive Sega PAC Boot ROM v1.04 (1993)(Pioneer - Sega)(US).bin"
+      destination: laseractive/[BIOS] LaserActive PAC-S1 (Japan) (v1.05).bin
-      destination: "laseractive/Pioneer LaserActive Sega PAC Boot ROM v1.04 (1993)(Pioneer\
-        \ - Sega)(US).bin"
       required: true
-      md5: 0e7393cd0951d6dde818fcd4cd819466
   lynx:
     files:
     - name: lynxboot.img
@@ -916,11 +786,11 @@ systems:
       required: true
   mastersystem:
     files:
-    - name: "[BIOS] Sega Master System (USA, Europe) (v1.3).sms"
+    - name: '[BIOS] Sega Master System (USA, Europe) (v1.3).sms'
-      destination: "[BIOS] Sega Master System (USA, Europe) (v1.3).sms"
+      destination: '[BIOS] Sega Master System (USA, Europe) (v1.3).sms'
       required: true
-    - name: "[BIOS] Sega Master System (Japan) (v2.1).sms"
+    - name: '[BIOS] Sega Master System (Japan) (v2.1).sms'
-      destination: "[BIOS] Sega Master System (Japan) (v2.1).sms"
+      destination: '[BIOS] Sega Master System (Japan) (v2.1).sms'
       required: true
   msx:
     files:
@@ -1205,13 +1075,13 @@ systems:
       md5: 64a95a4a884cf4cc15a566b856603193
   ngp:
     files:
-    - name: "[BIOS] SNK Neo Geo Pocket (Japan, Europe) (En,Ja).ngp"
+    - name: '[BIOS] SNK Neo Geo Pocket (Japan, Europe) (En,Ja).ngp'
-      destination: "[BIOS] SNK Neo Geo Pocket (Japan, Europe) (En,Ja).ngp"
+      destination: '[BIOS] SNK Neo Geo Pocket (Japan, Europe) (En,Ja).ngp'
       required: true
   ngpc:
     files:
-    - name: "[BIOS] SNK Neo Geo Pocket (Japan, Europe) (En,Ja).ngp"
+    - name: '[BIOS] SNK Neo Geo Pocket (Japan, Europe) (En,Ja).ngp'
-      destination: "[BIOS] SNK Neo Geo Pocket (Japan, Europe) (En,Ja).ngp"
+      destination: '[BIOS] SNK Neo Geo Pocket (Japan, Europe) (En,Ja).ngp'
       required: true
   odyssey2:
     files:
@@ -1319,7 +1189,7 @@ systems:
       destination: bios.min
       required: true
       md5: 1e4fb124a3a886865acb574f388c803d
-  ps2:
+  sony-playstation-2:
     files:
     - name: ps2-0230a-20080220.bin
       destination: pcsx2/bios/ps2-0230a-20080220.bin

scripts/common.py

@@ -191,6 +191,37 @@ def load_platform_config(platform_name: str, platforms_dir: str = "platforms") -
                             system.setdefault("files", []).append(gf)
                             existing.add(key)
 
+    # Merge metadata from _registry.yml. The registry is our curated source;
+    # the scraped YAML may be incomplete (missing cores, metadata fields).
+    # Registry fields supplement (not replace) the scraped config.
+    registry_path = os.path.join(platforms_dir, "_registry.yml")
+    if os.path.exists(registry_path):
+        reg_real = os.path.realpath(registry_path)
+        if reg_real not in _shared_yml_cache:
+            with open(registry_path) as f:
+                _shared_yml_cache[reg_real] = yaml.safe_load(f) or {}
+        reg = _shared_yml_cache[reg_real]
+        reg_entry = reg.get("platforms", {}).get(platform_name, {})
+
+        # Merge cores (union for lists, override for all_libretro)
+        reg_cores = reg_entry.get("cores")
+        if reg_cores is not None:
+            cfg_cores = config.get("cores")
+            if reg_cores == "all_libretro":
+                config["cores"] = "all_libretro"
+            elif isinstance(reg_cores, list) and isinstance(cfg_cores, list):
+                merged_set = {str(c) for c in cfg_cores} | {str(c) for c in reg_cores}
+                config["cores"] = sorted(merged_set)
+            elif isinstance(reg_cores, list) and cfg_cores is None:
+                config["cores"] = reg_cores
+
+        # Merge all registry fields absent from config (except cores,
+        # handled above with union logic). No hardcoded list — any field
+        # added to the registry is automatically available in the config.
+        for key, val in reg_entry.items():
+            if key != "cores" and key not in config:
+                config[key] = val
+
     _platform_config_cache[cache_key] = config
     return config
 
@@ -405,8 +436,12 @@ def resolve_local_file(
             sha1_match = by_md5.get(md5_candidate)
             if sha1_match and sha1_match in files_db:
                 path = files_db[sha1_match]["path"]
-                if os.path.exists(path) and _md5_name_ok(path):
+                # Full MD5 (32 chars) is a strong identifier: trust it
-                    return path, "md5_exact"
+                # without name guard. Truncated MD5 still needs name check
+                # to avoid cross-contamination.
+                if os.path.exists(path):
+                    if len(md5_candidate) >= 32 or _md5_name_ok(path):
+                        return path, "md5_exact"
             if len(md5_candidate) < 32:
                 for db_md5, db_sha1 in by_md5.items():
                     if db_md5.startswith(md5_candidate) and db_sha1 in files_db:
@@ -522,6 +557,25 @@ def resolve_local_file(
                     if fn.casefold() in basename_targets:
                         return os.path.join(root, fn), "data_dir"
 
+    # Agnostic fallback: for filename-agnostic files, find any DB file
+    # matching the system path prefix and size criteria
+    if file_entry.get("agnostic"):
+        agnostic_prefix = file_entry.get("agnostic_path_prefix", "")
+        min_size = file_entry.get("min_size", 0)
+        max_size = file_entry.get("max_size", float("inf"))
+        exact_size = file_entry.get("size")
+        if exact_size and not min_size:
+            min_size = exact_size
+            max_size = exact_size
+        if agnostic_prefix:
+            for _sha1, entry in files_db.items():
+                path = entry.get("path", "")
+                if not path.startswith(agnostic_prefix):
+                    continue
+                size = entry.get("size", 0)
+                if min_size <= size <= max_size and os.path.exists(path):
+                    return path, "agnostic_fallback"
+
     return None, "not_found"
 
 
@@ -633,6 +687,8 @@ def load_emulator_profiles(
     if not emu_path.exists():
         return profiles
     for f in sorted(emu_path.glob("*.yml")):
+        if f.name.endswith(".old.yml"):
+            continue
         with open(f) as fh:
             profile = yaml.safe_load(fh) or {}
         if "emulator" not in profile:
@@ -735,6 +791,15 @@ def resolve_platform_cores(
             for c in core_set
             if c in core_to_profile
         }
+        # Support "all_libretro" as a list element: combines all libretro
+        # profiles with explicitly listed standalone cores (e.g. RetroDECK
+        # ships RetroArch + standalone emulators)
+        if "all_libretro" in core_set or "retroarch" in core_set:
+            result |= {
+                name for name, p in profiles.items()
+                if "libretro" in p.get("type", "")
+                and p.get("type") != "alias"
+            }
     else:
         # Fallback: system ID intersection with normalization
         norm_plat_systems = {_norm_system_id(s) for s in config.get("systems", {})}
@@ -882,6 +947,72 @@ def filter_systems_by_target(
     return filtered
 
 
+def expand_platform_declared_names(config: dict, db: dict) -> set[str]:
+    """Build set of file names declared by a platform config.
+
+    Enriches the set with canonical names and aliases from the database
+    by resolving each platform file's MD5 through by_md5.  This handles
+    cases where a platform declares a file under a different name than
+    the emulator profile (e.g. Batocera ROM1 vs gsplus ROM).
+    """
+    declared: set[str] = set()
+    by_md5 = db.get("indexes", {}).get("by_md5", {})
+    files_db = db.get("files", {})
+    for system in config.get("systems", {}).values():
+        for fe in system.get("files", []):
+            name = fe.get("name", "")
+            if name:
+                declared.add(name)
+            md5 = fe.get("md5", "")
+            if not md5:
+                continue
+            # Skip multi-hash and zippedFile entries (inner ROM MD5, not file MD5)
+            if "," in md5 or fe.get("zippedFile"):
+                continue
+            sha1 = by_md5.get(md5.lower())
+            if not sha1:
+                continue
+            entry = files_db.get(sha1, {})
+            db_name = entry.get("name", "")
+            if db_name:
+                declared.add(db_name)
+            for alias in entry.get("aliases", []):
+                declared.add(alias)
+    return declared
+
+
+import re
+
+_TIMESTAMP_PATTERNS = [
+    re.compile(r'"generated_at":\s*"[^"]*"'),       # database.json
+    re.compile(r'\*Auto-generated on [^*]*\*'),      # README.md
+    re.compile(r'\*Generated on [^*]*\*'),           # docs site pages
+]
+
+
+def write_if_changed(path: str, content: str) -> bool:
+    """Write content to path only if the non-timestamp content differs.
+
+    Compares new and existing content after stripping timestamp lines.
+    Returns True if the file was written, False if skipped (unchanged).
+    """
+    if os.path.exists(path):
+        with open(path) as f:
+            existing = f.read()
+        if _strip_timestamps(existing) == _strip_timestamps(content):
+            return False
+    with open(path, "w") as f:
+        f.write(content)
+    return True
+
+
+def _strip_timestamps(text: str) -> str:
+    """Remove known timestamp patterns for content comparison."""
+    result = text
+    for pattern in _TIMESTAMP_PATTERNS:
+        result = pattern.sub("", result)
+    return result
+
 
 # Validation and mode filtering -extracted to validation.py for SoC.
 # Re-exported below for backward compatibility.

scripts/export_native.py

@@ -16,15 +16,27 @@ from exporter import discover_exporters
 
 OUTPUT_FILENAMES: dict[str, str] = {
     "retroarch": "System.dat",
+    "lakka": "System.dat",
+    "retropie": "System.dat",
     "batocera": "batocera-systems",
     "recalbox": "es_bios.xml",
     "retrobat": "batocera-systems.json",
+    "emudeck": "checkBIOS.sh",
+    "retrodeck": "component_manifest.json",
+    "romm": "known_bios_files.json",
 }
 
 
-def output_filename(platform: str) -> str:
+def output_path(platform: str, output_dir: str) -> str:
-    """Return the native output filename for a platform."""
+    """Return the full output path for a platform's native export.
-    return OUTPUT_FILENAMES.get(platform, f"{platform}_bios.dat")
+
+    Each platform gets its own subdirectory to avoid filename collisions
+    (e.g. retroarch, lakka, retropie all produce System.dat).
+    """
+    filename = OUTPUT_FILENAMES.get(platform, f"{platform}_bios.dat")
+    plat_dir = Path(output_dir) / platform
+    plat_dir.mkdir(parents=True, exist_ok=True)
+    return str(plat_dir / filename)
 
 
 def run(
@@ -35,8 +47,6 @@ def run(
 ) -> int:
     """Export truth to native formats, return exit code."""
     exporters = discover_exporters()
-    output_path = Path(output_dir)
-    output_path.mkdir(parents=True, exist_ok=True)
 
     errors = 0
 
@@ -60,7 +70,7 @@ def run(
         except (FileNotFoundError, OSError):
             pass
 
-        dest = str(output_path / output_filename(platform))
+        dest = output_path(platform, output_dir)
         exporter = exporter_cls()
         exporter.export(truth_data, dest, scraped_data=scraped)
 

scripts/exporter/base_exporter.py

@@ -25,3 +25,37 @@ class BaseExporter(ABC):
     @abstractmethod
     def validate(self, truth_data: dict, output_path: str) -> list[str]:
         """Validate exported file against truth data, return list of issues."""
+
+    @staticmethod
+    def _is_pattern(name: str) -> bool:
+        """Check if a filename is a placeholder pattern (not a real file)."""
+        return "<" in name or ">" in name or "*" in name
+
+    @staticmethod
+    def _dest(fe: dict) -> str:
+        """Get destination path for a file entry, falling back to name."""
+        return fe.get("path") or fe.get("destination") or fe.get("name", "")
+
+    @staticmethod
+    def _display_name(
+        sys_id: str, scraped_sys: dict | None = None,
+    ) -> str:
+        """Get display name for a system from scraped data or slug."""
+        if scraped_sys:
+            name = scraped_sys.get("name")
+            if name:
+                return name
+        # Fallback: convert slug to display name with acronym handling
+        _UPPER = {
+            "3do", "cdi", "cpc", "cps1", "cps2", "cps3", "dos", "gba",
+            "gbc", "hle", "msx", "nes", "nds", "ngp", "psp", "psx",
+            "sms", "snes", "stv", "tvc", "vb", "zx",
+        }
+        parts = sys_id.replace("-", " ").split()
+        result = []
+        for p in parts:
+            if p.lower() in _UPPER:
+                result.append(p.upper())
+            else:
+                result.append(p.capitalize())
+        return " ".join(result)

scripts/exporter/batocera_exporter.py

@@ -0,0 +1,111 @@
+"""Exporter for Batocera batocera-systems format.
+
+Produces a Python dict matching the exact format of
+batocera-linux/batocera-scripts/scripts/batocera-systems.
+"""
+
+from __future__ import annotations
+
+from pathlib import Path
+
+from .base_exporter import BaseExporter
+
+
+
+
+class Exporter(BaseExporter):
+    """Export truth data to Batocera batocera-systems format."""
+
+    @staticmethod
+    def platform_name() -> str:
+        return "batocera"
+
+    def export(
+        self,
+        truth_data: dict,
+        output_path: str,
+        scraped_data: dict | None = None,
+    ) -> None:
+        # Build native_id and display name maps from scraped data
+        native_map: dict[str, str] = {}
+        if scraped_data:
+            for sys_id, sys_data in scraped_data.get("systems", {}).items():
+                nid = sys_data.get("native_id")
+                if nid:
+                    native_map[sys_id] = nid
+
+        lines: list[str] = ["systems = {", ""]
+
+        systems = truth_data.get("systems", {})
+        for sys_id in sorted(systems):
+            sys_data = systems[sys_id]
+            files = sys_data.get("files", [])
+            if not files:
+                continue
+
+            native_id = native_map.get(sys_id, sys_id)
+            scraped_sys = scraped_data.get("systems", {}).get(sys_id) if scraped_data else None
+            display_name = self._display_name(sys_id, scraped_sys)
+
+            # Build md5 lookup from scraped data for this system
+            scraped_md5: dict[str, str] = {}
+            if scraped_data:
+                s_sys = scraped_data.get("systems", {}).get(sys_id, {})
+                for sf in s_sys.get("files", []):
+                    sname = sf.get("name", "").lower()
+                    smd5 = sf.get("md5", "")
+                    if sname and smd5:
+                        scraped_md5[sname] = smd5
+
+            # Build biosFiles entries as compact single-line dicts
+            # Original format ALWAYS has md5 — use scraped md5 as fallback
+            bios_parts: list[str] = []
+            for fe in files:
+                name = fe.get("name", "")
+                if name.startswith("_") or self._is_pattern(name):
+                    continue
+                dest = self._dest(fe)
+                md5 = fe.get("md5", "")
+                if isinstance(md5, list):
+                    md5 = md5[0] if md5 else ""
+                if not md5:
+                    md5 = scraped_md5.get(name.lower(), "")
+
+                # Original format requires md5 for every entry — skip without
+                if not md5:
+                    continue
+                bios_parts.append(
+                    f'{{ "md5": "{md5}", "file": "bios/{dest}" }}'
+                )
+
+            bios_str = ", ".join(bios_parts)
+            line = (
+                f'    "{native_id}": '
+                f'{{ "name": "{display_name}", '
+                f'"biosFiles": [ {bios_str} ] }},'
+            )
+            lines.append(line)
+
+        lines.append("")
+        lines.append("}")
+        lines.append("")
+        Path(output_path).write_text("\n".join(lines), encoding="utf-8")
+
+    def validate(self, truth_data: dict, output_path: str) -> list[str]:
+        content = Path(output_path).read_text(encoding="utf-8")
+        issues: list[str] = []
+        for sys_data in truth_data.get("systems", {}).values():
+            for fe in sys_data.get("files", []):
+                name = fe.get("name", "")
+                if name.startswith("_") or self._is_pattern(name):
+                    continue
+                # Skip entries without md5 (not exportable in this format)
+                md5 = fe.get("md5", "")
+                if isinstance(md5, list):
+                    md5 = md5[0] if md5 else ""
+                if not md5:
+                    continue
+                dest = self._dest(fe)
+                if dest not in content and name not in content:
+                    issues.append(f"missing: {name}")
+        return issues

scripts/exporter/emudeck_exporter.py

@@ -0,0 +1,207 @@
+"""Exporter for EmuDeck checkBIOS.sh format.
+
+Produces a bash script matching the exact pattern of EmuDeck's
+functions/checkBIOS.sh: per-system check functions with MD5 arrays
+inside the function body, iterating over $biosPath/* files.
+
+Two patterns:
+- MD5 pattern: systems with known hashes, loop $biosPath/*, md5sum each, match
+- File-exists pattern: systems with specific paths, check -f
+"""
+
+from __future__ import annotations
+
+import re
+from pathlib import Path
+
+from .base_exporter import BaseExporter
+
+# Map our system IDs to EmuDeck function naming conventions
+_SYSTEM_CONFIG: dict[str, dict] = {
+    "sony-playstation": {
+        "func": "checkPS1BIOS",
+        "var": "PSXBIOS",
+        "array": "PSBios",
+        "pattern": "md5",
+    },
+    "sony-playstation-2": {
+        "func": "checkPS2BIOS",
+        "var": "PS2BIOS",
+        "array": "PS2Bios",
+        "pattern": "md5",
+    },
+    "sega-mega-cd": {
+        "func": "checkSegaCDBios",
+        "var": "SEGACDBIOS",
+        "array": "CDBios",
+        "pattern": "md5",
+    },
+    "sega-saturn": {
+        "func": "checkSaturnBios",
+        "var": "SATURNBIOS",
+        "array": "SaturnBios",
+        "pattern": "md5",
+    },
+    "sega-dreamcast": {
+        "func": "checkDreamcastBios",
+        "var": "BIOS",
+        "array": "hashes",
+        "pattern": "md5",
+    },
+    "nintendo-ds": {
+        "func": "checkDSBios",
+        "var": "BIOS",
+        "array": "hashes",
+        "pattern": "md5",
+    },
+    "nintendo-switch": {
+        "func": "checkCitronBios",
+        "pattern": "file-exists",
+        "firmware_path": "$biosPath/citron/firmware",
+        "keys_path": "$biosPath/citron/keys/prod.keys",
+    },
+}
+
+
+def _make_md5_function(cfg: dict, md5s: list[str]) -> list[str]:
+    """Generate a MD5-checking function matching EmuDeck's exact pattern."""
+    func = cfg["func"]
+    var = cfg["var"]
+    array = cfg["array"]
+    md5_str = " ".join(md5s)
+
+    return [
+        f"{func}(){{",
+        "",
+        f'\t{var}="NULL"',
+        "",
+        '\tfor entry in "$biosPath/"*',
+        "\tdo",
+        '\t\tif [ -f "$entry" ]; then',
+        '\t\t\tmd5=($(md5sum "$entry"))',
+        f'\t\t\tif [[ "${var}" != true ]]; then',
+        f"\t\t\t\t{array}=({md5_str})",
+        f'\t\t\t\tfor i in "${{{array}[@]}}"',
+        "\t\t\t\tdo",
+        '\t\t\t\tif [[ "$md5" == *"${i}"* ]]; then',
+        f"\t\t\t\t\t{var}=true",
+        "\t\t\t\t\tbreak",
+        "\t\t\t\telse",
+        f"\t\t\t\t\t{var}=false",
+        "\t\t\t\tfi",
+        "\t\t\t\tdone",
+        "\t\t\tfi",
+        "\t\tfi",
+        "\tdone",
+        "",
+        "",
+        f"\tif [ ${var} == true ]; then",
+        '\t\techo "$entry true";',
+        "\telse",
+        '\t\techo "false";',
+        "\tfi",
+        "}",
+    ]
+
+
+def _make_file_exists_function(cfg: dict) -> list[str]:
+    """Generate a file-exists function matching EmuDeck's pattern."""
+    func = cfg["func"]
+    firmware = cfg.get("firmware_path", "")
+    keys = cfg.get("keys_path", "")
+
+    return [
+        f"{func}(){{",
+        "",
+        f'\tlocal FIRMWARE="{firmware}"',
+        f'\tlocal KEYS="{keys}"',
+        '\tif [[ -f "$KEYS" ]] && [[ "$( ls -A "$FIRMWARE")" ]]; then',
+        '\t\t\techo "true";',
+        "\telse",
+        '\t\t\techo "false";',
+        "\tfi",
+        "}",
+    ]
+
+
+class Exporter(BaseExporter):
+    """Export truth data to EmuDeck checkBIOS.sh format."""
+
+    @staticmethod
+    def platform_name() -> str:
+        return "emudeck"
+
+    def export(
+        self,
+        truth_data: dict,
+        output_path: str,
+        scraped_data: dict | None = None,
+    ) -> None:
+        lines: list[str] = ["#!/bin/bash"]
+
+        systems = truth_data.get("systems", {})
+
+        for sys_id, cfg in sorted(_SYSTEM_CONFIG.items(), key=lambda x: x[1]["func"]):
+            sys_data = systems.get(sys_id)
+            if not sys_data:
+                continue
+
+            lines.append("")
+
+            if cfg["pattern"] == "md5":
+                md5s: list[str] = []
+                for fe in sys_data.get("files", []):
+                    name = fe.get("name", "")
+                    if self._is_pattern(name) or name.startswith("_"):
+                        continue
+                    md5 = fe.get("md5", "")
+                    if isinstance(md5, list):
+                        md5s.extend(m for m in md5 if m and re.fullmatch(r"[a-f0-9]{32}", m))
+                    elif md5 and re.fullmatch(r"[a-f0-9]{32}", md5):
+                        md5s.append(md5)
+                if md5s:
+                    lines.extend(_make_md5_function(cfg, md5s))
+            elif cfg["pattern"] == "file-exists":
+                lines.extend(_make_file_exists_function(cfg))
+
+        lines.append("")
+        Path(output_path).write_text("\n".join(lines), encoding="utf-8")
+
+    def validate(self, truth_data: dict, output_path: str) -> list[str]:
+        content = Path(output_path).read_text(encoding="utf-8")
+        issues: list[str] = []
+
+        systems = truth_data.get("systems", {})
+        for sys_id, cfg in _SYSTEM_CONFIG.items():
+            if cfg["pattern"] != "md5":
+                continue
+            sys_data = systems.get(sys_id)
+            if not sys_data:
+                continue
+            for fe in sys_data.get("files", []):
+                md5 = fe.get("md5", "")
+                if isinstance(md5, list):
+                    md5 = md5[0] if md5 else ""
+                if md5 and re.fullmatch(r"[a-f0-9]{32}", md5) and md5 not in content:
+                    issues.append(f"missing md5: {md5} ({fe.get('name', '')})")
+
+        for sys_id, cfg in _SYSTEM_CONFIG.items():
+            func = cfg["func"]
+            if func in content:
+                continue
+            sys_data = systems.get(sys_id)
+            if not sys_data or not sys_data.get("files"):
+                continue
+            # Only flag if the system has usable data for the function type
+            if cfg["pattern"] == "md5":
+                has_md5 = any(
+                    fe.get("md5") and isinstance(fe.get("md5"), str)
+                    and re.fullmatch(r"[a-f0-9]{32}", fe["md5"])
+                    for fe in sys_data["files"]
+                )
+                if has_md5:
+                    issues.append(f"missing function: {func}")
+            elif cfg["pattern"] == "file-exists":
+                issues.append(f"missing function: {func}")
+
+        return issues

scripts/exporter/lakka_exporter.py

@@ -0,0 +1,17 @@
+"""Exporter for Lakka (System.dat format, same as RetroArch).
+
+Lakka inherits RetroArch cores and uses the same System.dat format.
+Delegates to systemdat_exporter for export and validation.
+"""
+
+from __future__ import annotations
+
+from .systemdat_exporter import Exporter as SystemDatExporter
+
+
+class Exporter(SystemDatExporter):
+    """Export truth data to Lakka System.dat format."""
+
+    @staticmethod
+    def platform_name() -> str:
+        return "lakka"

scripts/exporter/recalbox_exporter.py

@@ -0,0 +1,130 @@
+"""Exporter for Recalbox es_bios.xml format.
+
+Produces XML matching the exact format of recalbox's es_bios.xml:
+- XML namespace declaration
+- <system fullname="..." platform="...">
+- <bios path="system/file" md5="..." core="..." /> with optional mandatory, hashMatchMandatory, note
+- mandatory absent = true (only explicit when false)
+- 2-space indentation
+"""
+
+from __future__ import annotations
+
+from pathlib import Path
+
+from .base_exporter import BaseExporter
+
+
+
+
+class Exporter(BaseExporter):
+    """Export truth data to Recalbox es_bios.xml format."""
+
+    @staticmethod
+    def platform_name() -> str:
+        return "recalbox"
+
+    def export(
+        self,
+        truth_data: dict,
+        output_path: str,
+        scraped_data: dict | None = None,
+    ) -> None:
+        native_map: dict[str, str] = {}
+        if scraped_data:
+            for sys_id, sys_data in scraped_data.get("systems", {}).items():
+                nid = sys_data.get("native_id")
+                if nid:
+                    native_map[sys_id] = nid
+
+        lines: list[str] = [
+            '<?xml version="1.0" encoding="UTF-8"?>',
+            '<biosList xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"'
+            ' xsi:noNamespaceSchemaLocation="es_bios.xsd">',
+        ]
+
+        systems = truth_data.get("systems", {})
+        for sys_id in sorted(systems):
+            sys_data = systems[sys_id]
+            files = sys_data.get("files", [])
+            if not files:
+                continue
+
+            native_id = native_map.get(sys_id, sys_id)
+            scraped_sys = scraped_data.get("systems", {}).get(sys_id) if scraped_data else None
+            display_name = self._display_name(sys_id, scraped_sys)
+
+            lines.append(f'  <system fullname="{display_name}" platform="{native_id}">')
+
+            # Build path lookup from scraped data for this system
+            scraped_paths: dict[str, str] = {}
+            if scraped_data:
+                s_sys = scraped_data.get("systems", {}).get(sys_id, {})
+                for sf in s_sys.get("files", []):
+                    sname = sf.get("name", "").lower()
+                    spath = sf.get("destination", sf.get("name", ""))
+                    if sname and spath:
+                        scraped_paths[sname] = spath
+
+            for fe in files:
+                name = fe.get("name", "")
+                if name.startswith("_") or self._is_pattern(name):
+                    continue
+
+                # Use scraped path when available (preserves original format)
+                path = scraped_paths.get(name.lower())
+                if not path:
+                    dest = self._dest(fe)
+                    path = f"{native_id}/{dest}" if "/" not in dest else dest
+
+                md5 = fe.get("md5", "")
+                if isinstance(md5, list):
+                    md5 = ",".join(md5)
+
+                required = fe.get("required", True)
+
+                # Build cores string from _cores
+                cores_list = fe.get("_cores", [])
+                core_str = ",".join(f"libretro/{c}" for c in cores_list) if cores_list else ""
+
+                attrs = [f'path="{path}"']
+                if md5:
+                    attrs.append(f'md5="{md5}"')
+                if not required:
+                    attrs.append('mandatory="false"')
+                if not required:
+                    attrs.append('hashMatchMandatory="true"')
+                if core_str:
+                    attrs.append(f'core="{core_str}"')
+
+                lines.append(f'    <bios {" ".join(attrs)} />')
+
+            lines.append("  </system>")
+
+        lines.append("</biosList>")
+        lines.append("")
+        Path(output_path).write_text("\n".join(lines), encoding="utf-8")
+
+    def validate(self, truth_data: dict, output_path: str) -> list[str]:
+        from xml.etree.ElementTree import parse as xml_parse
+
+        tree = xml_parse(output_path)
+        root = tree.getroot()
+
+        exported_paths: set[str] = set()
+        for bios_el in root.iter("bios"):
+            path = bios_el.get("path", "")
+            if path:
+                exported_paths.add(path.lower())
+                exported_paths.add(path.split("/")[-1].lower())
+
+        issues: list[str] = []
+        for sys_data in truth_data.get("systems", {}).values():
+            for fe in sys_data.get("files", []):
+                name = fe.get("name", "")
+                if name.startswith("_") or self._is_pattern(name):
+                    continue
+                dest = self._dest(fe)
+                if name.lower() not in exported_paths and dest.lower() not in exported_paths:
+                    issues.append(f"missing: {name}")
+        return issues

scripts/exporter/retrobat_exporter.py

@@ -0,0 +1,114 @@
+"""Exporter for RetroBat batocera-systems.json format.
+
+Produces JSON matching the exact format of
+RetroBat-Official/emulatorlauncher/batocera-systems/Resources/batocera-systems.json:
+- System keys with "name" and "biosFiles" fields
+- Each biosFile has "md5" before "file" (matching original key order)
+"""
+
+from __future__ import annotations
+
+import json
+from collections import OrderedDict
+from pathlib import Path
+
+from .base_exporter import BaseExporter
+
+
+
+
+class Exporter(BaseExporter):
+    """Export truth data to RetroBat batocera-systems.json format."""
+
+    @staticmethod
+    def platform_name() -> str:
+        return "retrobat"
+
+    def export(
+        self,
+        truth_data: dict,
+        output_path: str,
+        scraped_data: dict | None = None,
+    ) -> None:
+        native_map: dict[str, str] = {}
+        if scraped_data:
+            for sys_id, sys_data in scraped_data.get("systems", {}).items():
+                nid = sys_data.get("native_id")
+                if nid:
+                    native_map[sys_id] = nid
+
+        output: OrderedDict[str, dict] = OrderedDict()
+
+        systems = truth_data.get("systems", {})
+        for sys_id in sorted(systems):
+            sys_data = systems[sys_id]
+            files = sys_data.get("files", [])
+            if not files:
+                continue
+
+            native_id = native_map.get(sys_id, sys_id)
+            scraped_sys = scraped_data.get("systems", {}).get(sys_id) if scraped_data else None
+            display_name = self._display_name(sys_id, scraped_sys)
+            bios_files: list[OrderedDict] = []
+
+            for fe in files:
+                name = fe.get("name", "")
+                if name.startswith("_") or self._is_pattern(name):
+                    continue
+                dest = self._dest(fe)
+                md5 = fe.get("md5", "")
+                if isinstance(md5, list):
+                    md5 = md5[0] if md5 else ""
+
+                # Original format requires md5 for every entry
+                if not md5:
+                    continue
+                entry: OrderedDict[str, str] = OrderedDict()
+                entry["md5"] = md5
+                entry["file"] = f"bios/{dest}"
+                bios_files.append(entry)
+
+            if bios_files:
+                if native_id in output:
+                    existing_files = {e.get("file") for e in output[native_id]["biosFiles"]}
+                    for entry in bios_files:
+                        if entry.get("file") not in existing_files:
+                            output[native_id]["biosFiles"].append(entry)
+                else:
+                    sys_entry: OrderedDict[str, object] = OrderedDict()
+                    sys_entry["name"] = display_name
+                    sys_entry["biosFiles"] = bios_files
+                    output[native_id] = sys_entry
+
+        Path(output_path).write_text(
+            json.dumps(output, indent=2, ensure_ascii=False) + "\n",
+            encoding="utf-8",
+        )
+
+    def validate(self, truth_data: dict, output_path: str) -> list[str]:
+        data = json.loads(Path(output_path).read_text(encoding="utf-8"))
+
+        exported_files: set[str] = set()
+        for sys_data in data.values():
+            for bf in sys_data.get("biosFiles", []):
+                path = bf.get("file", "")
+                stripped = path.removeprefix("bios/")
+                exported_files.add(stripped)
+                basename = path.split("/")[-1] if "/" in path else path
+                exported_files.add(basename)
+
+        issues: list[str] = []
+        for sys_data in truth_data.get("systems", {}).values():
+            for fe in sys_data.get("files", []):
+                name = fe.get("name", "")
+                if name.startswith("_") or self._is_pattern(name):
+                    continue
+                md5 = fe.get("md5", "")
+                if isinstance(md5, list):
+                    md5 = md5[0] if md5 else ""
+                if not md5:
+                    continue
+                dest = self._dest(fe)
+                if name not in exported_files and dest not in exported_files:
+                    issues.append(f"missing: {name}")
+        return issues