diff --git a/install.ps1 b/install.ps1
index 93fff7d90..00d2dc7d4 100644
--- a/install.ps1
+++ b/install.ps1
@@ -16,7 +16,7 @@
     # and Invoke-WebRequest throws on a cut transfer before the hash is read:
     # the site's build rewrites this line there (scripts/sitebootstrap.py).
     $mismatchAdvice = "The download was most likely cut short: try again. Within minutes of an update of this project the two files can come from caches of different ages. Waiting five minutes settles that."
-    $defaultInstallSha256 = "e1460704fe40e4c91b9c410ae119ceb1ece3b375d9a3dc6be00a96d5f5d348bf"
+    $defaultInstallSha256 = "000880ee7a1293a5a3bc868b6bf7f3a4f262b61c485564cc11b433908acca817"
     # The pin above refuses any changed byte: this cap only stops a body that
     # cannot be the installer (a sign-in portal's page) before it is hashed.
     $maximumInstallerBytes = 8MB
diff --git a/install.py b/install.py
index 873ac0fa7..f01e2d8cc 100644
--- a/install.py
+++ b/install.py
@@ -6548,10 +6548,6 @@ def apply_record(args: argparse.Namespace, plat: str, folder: Path) -> dict | No
     return setup
 
 
-# Windows marks a directory junction, and any other reparse point, with this
-# attribute. Before Python 3.12 lstat does not report a junction as a link,
-# and os.walk(followlinks=False) descends into it.
-_REPARSE_POINT = getattr(stat, "FILE_ATTRIBUTE_REPARSE_POINT", 0x400)
 
 
 def _is_link(info: os.stat_result) -> bool:
@@ -13878,6 +13874,8 @@ APPLE_DOUBLE = "._"
 # Folders the kernel makes up on the fly: endless, and never a copy.
 PSEUDO_FOLDERS = frozenset() if os.name == "nt" else frozenset(("/proc", "/sys", "/dev"))
 # FILE_ATTRIBUTE_REPARSE_POINT: a junction, a mount point or a link on Windows.
+# Before Python 3.12 lstat does not report a junction as a link, and
+# os.walk(followlinks=False) descends into it.
 _REPARSE_POINT = getattr(stat, "FILE_ATTRIBUTE_REPARSE_POINT", 0x400)
 # Errors a member of someone's ZIP can raise on reading: damaged, encrypted
 # (RuntimeError), or packed with a method zipfile lacks.
diff --git a/install.sh b/install.sh
index 47dcfa96b..0f89cf441 100755
--- a/install.sh
+++ b/install.sh
@@ -23,7 +23,7 @@ DEFAULT_INSTALL_URL="https://raw.githubusercontent.com/Abdess/retrobios/main/ins
 # curl or wget stop on a cut transfer before the hash is read: the site's
 # build rewrites this line there (scripts/sitebootstrap.py).
 MISMATCH_ADVICE="The download was most likely cut short: try again. Within minutes of an update of this project the two files can come from caches of different ages. Waiting five minutes settles that."
-DEFAULT_INSTALL_SHA256="e1460704fe40e4c91b9c410ae119ceb1ece3b375d9a3dc6be00a96d5f5d348bf"
+DEFAULT_INSTALL_SHA256="000880ee7a1293a5a3bc868b6bf7f3a4f262b61c485564cc11b433908acca817"
 # The pin above refuses any changed byte: this cap only stops a body that
 # cannot be the installer (a sign-in portal's page) before it is hashed.
 MAX_INSTALLER_BYTES=8388608
diff --git a/install/launchers/index.json b/install/launchers/index.json
index 583697cdb..570c033de 100644
--- a/install/launchers/index.json
+++ b/install/launchers/index.json
@@ -27,8 +27,8 @@
         {
           "dest": "roms/ports/retrobios/install.py",
           "repo_path": "install.py",
-          "size": 1285922,
-          "sha256": "e1460704fe40e4c91b9c410ae119ceb1ece3b375d9a3dc6be00a96d5f5d348bf",
+          "size": 1285764,
+          "sha256": "000880ee7a1293a5a3bc868b6bf7f3a4f262b61c485564cc11b433908acca817",
           "executable": false
         },
         {
@@ -71,8 +71,8 @@
     "muos": {
       "archive": {
         "dest": "ARCHIVE/RetroBIOS.muxapp",
-        "size": 1339547,
-        "sha256": "974a225380c719ecee6dbc226ed17d1709ed406d08556657c15cccebb1eb587c"
+        "size": 1339389,
+        "sha256": "e305f03c65adbf3cf4eab08eaad2091bc52afa397c81895679d6172ca12ba061"
       },
       "members": [
         {
@@ -92,8 +92,8 @@
         {
           "name": "RetroBIOS/install.py",
           "repo_path": "install.py",
-          "size": 1285922,
-          "sha256": "e1460704fe40e4c91b9c410ae119ceb1ece3b375d9a3dc6be00a96d5f5d348bf",
+          "size": 1285764,
+          "sha256": "000880ee7a1293a5a3bc868b6bf7f3a4f262b61c485564cc11b433908acca817",
           "executable": false
         },
         {
@@ -166,8 +166,8 @@
         {
           "dest": ".config/modules/retrobios/install.py",
           "repo_path": "install.py",
-          "size": 1285922,
-          "sha256": "e1460704fe40e4c91b9c410ae119ceb1ece3b375d9a3dc6be00a96d5f5d348bf",
+          "size": 1285764,
+          "sha256": "000880ee7a1293a5a3bc868b6bf7f3a4f262b61c485564cc11b433908acca817",
           "executable": false
         },
         {
diff --git a/mypy-baseline.txt b/mypy-baseline.txt
index 4814cbb7d..f7b159c43 100644
--- a/mypy-baseline.txt
+++ b/mypy-baseline.txt
@@ -8,8 +8,6 @@ install.py:0: error: "object" has no attribute "get"  [attr-defined]
 install.py:0: error: "object" has no attribute "get"  [attr-defined]
 install.py:0: error: "object" object is not iterable  [misc]
 install.py:0: error: "object" object is not iterable  [misc]
-install.py:0: error: "str" has no attribute "append"  [attr-defined]
-install.py:0: error: "str" has no attribute "append"  [attr-defined]
 install.py:0: error: Argument 1 to "_ZippedLookup" has incompatible type "Optional[FolderIndex]"; expected "FolderIndex"  [arg-type]
 install.py:0: error: Argument 1 to "__iadd__" of "list" has incompatible type "Invocation"; expected "Iterable[str]"  [arg-type]
 install.py:0: error: Argument 1 to "_digest_file" has incompatible type "Optional[Path]"; expected "Path"  [arg-type]
@@ -118,7 +116,6 @@ install.py:0: error: Incompatible types in assignment (expression has type "int"
 install.py:0: error: Incompatible types in assignment (expression has type "int", variable has type "str")  [assignment]
 install.py:0: error: Incompatible types in assignment (expression has type "list[dict[Any, Any]]", variable has type "int")  [assignment]
 install.py:0: error: Incompatible types in assignment (expression has type "list[str]", variable has type "Invocation")  [assignment]
-install.py:0: error: Incompatible types in assignment (expression has type "list[str]", variable has type "str")  [assignment]
 install.py:0: error: Incompatible types in assignment (expression has type "set[int]", variable has type "int")  [assignment]
 install.py:0: error: Incompatible types in assignment (expression has type "set[int]", variable has type "list[dict[Any, Any]]")  [assignment]
 install.py:0: error: Incompatible types in assignment (expression has type "set[int]", variable has type "list[dict[Any, Any]]")  [assignment]
diff --git a/scripts/sitediagrams.py b/scripts/sitediagrams.py
index 09e78ddfd..c62fd7017 100644
--- a/scripts/sitediagrams.py
+++ b/scripts/sitediagrams.py
@@ -904,7 +904,9 @@ GLANCE_GROUPS: tuple[tuple[str, tuple[str, ...]], ...] = (
                      "--cores-dir")),
     ("Look first", ("--check", "--dry-run", "--list-platforms", "--list-targets",
                     "--list-systems", "--list-cores", "--list-emulators")),
-    ("From files on hand", ("--from", "--from-pack", "--manifest", "--offline", "--restore")),
+    ("From files on hand", ("--from", "--from-pack", "--manifest", "--offline")),
+    ("Remove and put back", ("--remove", "--file", "--backup", "--backups", "--restore",
+                             "--delete-backup")),
     ("How the run talks", ("--tui", "--plain", "--no-input", "--yes", "--quiet", "--verbose",
                            "--events", "--jobs", "--version", "--help")),
 )
diff --git a/wiki/testing-guide.md b/wiki/testing-guide.md
index 2c1f6a867..a31eb1127 100644
--- a/wiki/testing-guide.md
+++ b/wiki/testing-guide.md
@@ -59,7 +59,7 @@ Every module in `tests/`, by the area it guards.
 | Packs and manifests | synthetic + real packs | `test_artifact_lock`, `test_atomic_artifacts`, `test_batocera_cores`, `test_core_data_trees`, `test_deterministic_zip`, `test_emulator_pack_counts`, `test_finalize_pack_names`, `test_large_file_cache`, `test_libretro_layout`, `test_manifest_entry`, `test_minui_platform`, `test_no_game_data`, `test_pack_conformance_dirs`, `test_pack_core_extras`, `test_pack_counts`, `test_pack_destinations`, `test_pack_failures`, `test_pack_file_names`, `test_pack_grouping`, `test_pack_integrity`, `test_pack_member_identity`, `test_pack_readme`, `test_platform_inheritance`, `test_platform_keys`, `test_release_packs`, `test_required_only_archives`, `test_required_only_twins`, `test_save_root`, `test_split_extras`, `test_split_names`, `test_split_pack`, `test_system_pack_extras`, `test_system_pack_parity`, `test_torrentzip`, `test_which_pack` |
 | Slots and regions | synthetic + profiles | `test_region`, `test_region_agnostic_scan`, `test_region_groups`, `test_region_held`, `test_region_platform_index`, `test_region_required_only`, `test_slot`, `test_slots`, `test_slots_shipped_file` |
 | Hardware targets and systems | synthetic + target files | `test_amberelec_targets`, `test_emuelec_targets`, `test_extract_targets`, `test_lakka_targets`, `test_libretro_slugs`, `test_system_ids`, `test_system_selection`, `test_target_names`, `test_target_scrapers`, `test_target_systems`, `test_target_verify` |
-| Installer and downloads | loopback server | `test_check_release`, `test_download`, `test_install`, `test_install_cores`, `test_install_experience`, `test_install_filesystems`, `test_install_app`, `test_install_from`, `test_install_games`, `test_install_journeys`, `test_install_offline`, `test_install_selection`, `test_install_tui`, `test_pypi_package` |
+| Installer and downloads | loopback server | `test_check_release`, `test_download`, `test_install`, `test_install_cores`, `test_install_experience`, `test_install_filesystems`, `test_install_app`, `test_install_from`, `test_install_games`, `test_install_journeys`, `test_install_offline`, `test_install_removal`, `test_install_selection`, `test_install_tui`, `test_pypi_package` |
 | Handheld launchers | a pty as the console, fake installer and firmware tools, stubbed PortMaster dialogs | `test_handheld_launchers`, `test_port` |
 | Running cores | parsers on fixed inputs, a libretro core built from C in the test when a compiler exists | `test_core_probe` |
 | Measurement records | synthetic record files, the committed `measurements/` against HEAD, the **Proof** line naming the BIOS a core ran, and that no page shows a Tested block, a region outcome or a time per frame | `test_measurements` |