# Abdess/retrobios

Source-verified BIOS and firmware packs for RetroArch, Batocera, Recalbox, Lakka, RetroPie, EmuDeck, RetroBat, RetroDECK, RomM, BizHawk, ROCKNIX, and MiSTer FPGA. Platform-native verification, with emulator source code as the deciding authority.

Repository: https://github.com/Abdess/retrobios
Canonical: https://ross.abutalabs.com/products/retrobios
Homepage: https://abdess.github.io/retrobios/
Language: HTML
License: NOASSERTION
License Family: other
Topics: bios, retroarch, lakka, recalbox, retrogaming, batocera, firmware, libretro, mame, emudeck, emulator, nintendo, playstation, preservation, retrobat, retrodeck, retropie, sega, emulatorjs, romm
Last push: 2026-08-24T09:25:59+00:00

## Health v2 (maintenance only)
Score: 98/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 99, release rhythm 96, longevity 100
- inputs: {"age_days": 2312, "days_push": 9, "days_rel": 27, "gap_med": 8, "n_releases_24m": 4}
- flags: no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 6894, forks 658 (observed 2026-08-28T04:09:51.157974+00:00)

## What it is
A curated, source-verified collection of BIOS and firmware files for retro game emulators, packaged per platform (RetroArch, Batocera, RetroPie, EmuDeck, MiSTer FPGA, and others). Each pack replicates the exact file checks each emulator performs, verified against emulator source code and checksums.

## Use cases
- set up BIOS files for RetroArch without hunting them down
- install complete BIOS pack for Batocera or Recalbox
- fix missing BIOS errors in EmuDeck or RetroDECK
- download verified firmware for MiSTer FPGA
- populate BIOS folder for a retro handheld SD card
- verify emulator BIOS files against checksums
- bulk-install BIOS files for BizHawk

## When to choose
- you need complete, checksum-verified BIOS sets for one or more retro emulation platforms
- you want a one-command installer that auto-detects your platform and only downloads missing files
- you want files validated against emulator source code rather than forum folklore

## When to avoid
- you need BIOS files for platforms not covered by the twelve supported packs
- you require a permissive open-source license - the repo's license is non-standard and the underlying BIOS files are copyrighted dumps
- you only need one or two BIOS files and can source them yourself

## Facets
- artifact type: dataset
- maturity: active
- function: file-system, developer-tools
- domain: gaming-tools, files, self-hosted
- platform: windows, cross-platform, cli
- tags: bios, firmware, retro-gaming, emulation, retroarch, batocera, retropie, recalbox, lakka, emudeck, mister-fpga, checksum-verification, game-preservation, linux, macos

## Member repositories
- Abdess/retrobios (main) score 98

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:09:51.157974+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T17:41:38.595826+00:00, confidence not recorded.
  - readme: https://github.com/Abdess/retrobios (fetched 2026-08-28T04:09:51.157974+00:00, sha da8c76ed965a)
  - homepage: https://abdess.github.io/retrobios/ (fetched 2026-08-29T08:37:24.233945+00:00, sha 687fcd5e6bf7)
- Data as of 2026-08-30T08:39:29.467469+00:00.