Miguel Palhas
91 lines
3.2 KiB
Nix
91 lines
3.2 KiB
Nix
{
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config,
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lib,
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pkgs,
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...
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}:
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# RetroArch — libretro frontend/emulator, plus standalone Dolphin & PCSX2.
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#
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# Cores are managed declaratively through `retroarch.withCores`. The in-app
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# Online Updater / Core Downloader is compiled out of the nixpkgs build
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# (--disable-update_cores), and the libretro buildbot cores wouldn't run on
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# NixOS anyway (generic-Linux binaries linked against FHS paths). So cores come
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# from nixpkgs' `libretro.*` set and are baked into the wrapper — add or drop a
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# system by editing the list below.
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#
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# ROMs and BIOS/firmware are still supplied by hand:
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# * roms -> ~/roms (game files)
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# * system -> ~/.config/retroarch/system (BIOS dumps: PS1, Saturn, DS, CD, …)
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# Both are seeded as empty writable dirs via `.keep` placeholders, so
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# home-manager creates the trees without owning their contents.
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#
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# GameCube/Wii and PS2 are installed as the standalone emulators (dolphin-emu,
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# pcsx2) rather than libretro cores — those cores exist but the standalones are
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# far better maintained and less finicky.
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#
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# WebDAV cloud sync is configured in the RetroArch UI (Settings > Cloud Sync):
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# no server URL or credentials live in this repo, since there's no secrets
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# tooling here and the Nix store is world-readable.
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#
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# Gated by its own option, independent of `custom.gaming.enable`, matching the
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# moonlight module next door.
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let
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cfg = config.custom.gaming;
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in
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{
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options.custom.gaming.retroarch = lib.mkEnableOption "RetroArch (declarative cores) + standalone Dolphin/PCSX2";
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config = lib.mkIf cfg.retroarch {
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home.packages = [
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(pkgs.retroarch.withCores (
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cores: with cores; [
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# Nintendo
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mesen # NES
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snes9x # SNES
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gambatte # Game Boy / Color
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mgba # GBA
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mupen64plus # N64 (Mupen64Plus-Next)
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melondsds # DS
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# Sega
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genesis-plus-gx # SMS / GG / Genesis / Mega Drive / Sega CD / SG-1000
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picodrive # 32X
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beetle-saturn # Saturn
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flycast # Dreamcast / NAOMI
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# Sony
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beetle-psx-hw # PS1 (HW upscaling)
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ppsspp # PSP
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# Handhelds / misc
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beetle-pce # PC Engine / TurboGrafx / CD
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beetle-wswan # WonderSwan
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beetle-ngp # Neo Geo Pocket
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beetle-lynx # Atari Lynx
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beetle-vb # Virtual Boy
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# Arcade
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fbneo # FinalBurn Neo
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]
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))
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# Better as standalones than their libretro cores:
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pkgs.dolphin-emu # GameCube / Wii
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pkgs.pcsx2 # PS2
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];
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home.file."roms/.keep".text = "";
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xdg.configFile."retroarch/system/.keep".text = "";
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# Slang shaders. The in-app Online Updater that normally downloads these is
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# compiled out of the nixpkgs build, so ship them from nixpkgs instead:
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# symlink the shader tree into video_shader_dir (~/.config/retroarch/shaders)
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# so Quick Menu > Shaders > Load Preset can browse shaders_slang/ — e.g.
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# handheld/lcd3x.slangp or handheld/color-mod/gba-color.slangp.
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# Read-only (it's a store path); "Save Core Preset" still works since that
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# writes to retroarch/config/<core>/, not here.
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xdg.configFile."retroarch/shaders".source =
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"${pkgs.libretro-shaders-slang}/share/libretro/shaders";
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};
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}
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