docs: scope Lakka advice, list Recalbox MAME

wiki/faq.md

@@ -79,7 +79,9 @@ MAME 2003-Plus, MAME 2009 (0.135u4), MAME 2010 (0.139), MAME 2015
 version's own source tree, because the BIOS root sets differ between
 versions. Derivatives and ports carry their own profiles on top of those
 generations: `mamearcade`, `mamemess`, `mame2003_midway`, the three
-`mame4droid` drops, `advancemame`, `groovymame` and `hbmame`. The pack
+`mame4droid` drops, `advancemame`, `groovymame` and `hbmame`. Recalbox
+compiles two MAME versions of its own, 0.258 and 0.278, profiled as
+`mame0258` and `mame0278`. The pack
 ships the sets matching the core you run, and a generic unversioned arcade
 pack cannot do that.
 

wiki/troubleshooting.md

@@ -93,7 +93,9 @@ Windows or macOS would overwrite one with the other. On Linux, Mesen-CE opens
 only holds as `BIOS.col` and `2608_*.WAV`. The installer checks whether the
 BIOS directory keeps case and, if it does, also fetches these names. If you
 extract the ZIP on Linux by hand, take the Lakka pack instead: it is the
-RetroArch pack with both spellings.
+RetroArch pack with both spellings. Releases up to v2026.10.10 have no Lakka
+pack of their own (`RetroArch_Lakka_*_BIOS_Pack.zip` serves both and holds one
+spelling), so with those use the installer.
 
 The reverse happens on Batocera and Recalbox, whose lists hold both spellings
 because their systems keep case: NP2kai reads `np2kai/bios.rom` and