push sheeet

pkgs/applications/emulators/libretro/README.md

@@ -0,0 +1,40 @@
+# Libretro
+
+[libretro cores](https://docs.libretro.com/guides/core-list/) and related
+packages.
+
+## Adding new cores
+
+The basic steps to add a new core are:
+
+1. Add a new core using `mkLibretroCore` function (use one of the existing
+   cores as an example)
+2. Add your new core to [`default.nix`](./default.nix) file
+3. Try to build your core with `nix-build -A libretro.<core>`
+
+## Using RetroArch with cores
+
+To create a custom RetroArch derivation with the cores you want (instead of
+using `retroarch-full` that includes all cores), you can use `.withCores` like
+this:
+
+```nix
+{ pkgs, ... }:
+
+let
+  retroarchWithCores = (
+    pkgs.retroarch.withCores (
+      cores: with cores; [
+        bsnes
+        mgba
+        quicknes
+      ]
+    )
+  );
+in
+{
+  environment.systemPackages = [ retroarchWithCores ];
+}
+```
+
+For advanced customization, see `wrapRetroArch` wrapper.

pkgs/applications/emulators/libretro/cores/atari800.nix

@@ -0,0 +1,25 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore rec {
+  core = "atari800";
+  version = "0-unstable-2024-10-31";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "libretro-atari800";
+    rev = "6a18cb23cc4a7cecabd9b16143d2d7332ae8d44b";
+    hash = "sha256-+cZXHtaXnpU/zCwiDtjkyNMFGDahiHzqV2FoTCRnUWE=";
+  };
+
+  makefile = "Makefile";
+  makeFlags = [ "GIT_VERSION=${builtins.substring 0 7 src.rev}" ];
+
+  meta = {
+    description = "Port of Atari800 to libretro";
+    homepage = "https://github.com/libretro/libretro-atari800";
+    license = lib.licenses.gpl2Only;
+  };
+}

pkgs/applications/emulators/libretro/cores/beetle-gba.nix

@@ -0,0 +1,24 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "mednafen-gba";
+  version = "0-unstable-2024-10-21";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "beetle-gba-libretro";
+    rev = "6cee80685f735ea6c2373db2622a1f1ee9f39d39";
+    hash = "sha256-a3XgExXVCUFw3GLCUkEl6now2L8qVdNOaXvrDMcT1ZE=";
+  };
+
+  makefile = "Makefile";
+
+  meta = {
+    description = "Port of Mednafen's GameBoy Advance core to libretro";
+    homepage = "https://github.com/libretro/beetle-gba-libretro";
+    license = lib.licenses.gpl2Only;
+  };
+}

pkgs/applications/emulators/libretro/cores/beetle-lynx.nix

@@ -0,0 +1,24 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "mednafen-lynx";
+  version = "0-unstable-2025-05-10";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "beetle-lynx-libretro";
+    rev = "efd1797c7aa5a83c354507b1b61ac24222ebaa58";
+    hash = "sha256-K+VZYqNl3G1eE7dSlfmZFCoS5bKIyGSNNu2i737bKnM=";
+  };
+
+  makefile = "Makefile";
+
+  meta = {
+    description = "Port of Mednafen's Lynx core to libretro";
+    homepage = "https://github.com/libretro/beetle-lynx-libretro";
+    license = lib.licenses.gpl2Only;
+  };
+}

pkgs/applications/emulators/libretro/cores/beetle-ngp.nix

@@ -0,0 +1,24 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "mednafen-ngp";
+  version = "0-unstable-2024-10-21";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "beetle-ngp-libretro";
+    rev = "139fe34c8dfc5585d6ee1793a7902bca79d544de";
+    hash = "sha256-ruWnCgMxfpPHTWQ7vgNUczmGRzNKKhoZTNlUcNgm4T8=";
+  };
+
+  makefile = "Makefile";
+
+  meta = {
+    description = "Port of Mednafen's NeoGeo Pocket core to libretro";
+    homepage = "https://github.com/libretro/beetle-ngp-libretro";
+    license = lib.licenses.gpl2Only;
+  };
+}

pkgs/applications/emulators/libretro/cores/beetle-pce-fast.nix

@@ -0,0 +1,24 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "mednafen-pce-fast";
+  version = "0-unstable-2025-09-26";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "beetle-pce-fast-libretro";
+    rev = "6c89e833b1aa0e0c5cd894f90a2dd09b579ffa4d";
+    hash = "sha256-R7qSeCRWoMe3mMpHZy4GWatlVS8x+4vn8bughHdaVb0=";
+  };
+
+  makefile = "Makefile";
+
+  meta = {
+    description = "Port of Mednafen's PC Engine fast core to libretro";
+    homepage = "https://github.com/libretro/beetle-pce-fast-libretro";
+    license = lib.licenses.gpl2Only;
+  };
+}

pkgs/applications/emulators/libretro/cores/beetle-pce.nix

@@ -0,0 +1,24 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "mednafen-pce";
+  version = "0-unstable-2025-06-22";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "beetle-pce-libretro";
+    rev = "9a301c0773c53702a882bbaa42ee9cbc6d523787";
+    hash = "sha256-RS5omi6LthQy8fFfouSEpYtaeD7QDlRENm0YuqHzUc0=";
+  };
+
+  makefile = "Makefile";
+
+  meta = {
+    description = "Port of Mednafen's PC Engine core to libretro";
+    homepage = "https://github.com/libretro/beetle-pce-libretro";
+    license = lib.licenses.gpl2Only;
+  };
+}

pkgs/applications/emulators/libretro/cores/beetle-pcfx.nix

@@ -0,0 +1,24 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "mednafen-pcfx";
+  version = "0-unstable-2024-10-21";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "beetle-pcfx-libretro";
+    rev = "dd04cef9355286488a1d78ff18c4c848a1575540";
+    hash = "sha256-oFBuriCbJWjgPH9RRAM/XUvkW0gKXnvs7lmBpJpWewo=";
+  };
+
+  makefile = "Makefile";
+
+  meta = {
+    description = "Port of Mednafen's PCFX core to libretro";
+    homepage = "https://github.com/libretro/beetle-pcfx-libretro";
+    license = lib.licenses.gpl2Only;
+  };
+}

pkgs/applications/emulators/libretro/cores/beetle-psx.nix

@@ -0,0 +1,38 @@
+{
+  lib,
+  libGL,
+  libGLU,
+  fetchFromGitHub,
+  mkLibretroCore,
+  withHw ? false,
+}:
+mkLibretroCore {
+  core = "mednafen-psx" + lib.optionalString withHw "-hw";
+  version = "0-unstable-2025-10-03";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "beetle-psx-libretro";
+    rev = "4968db4255bd8853137132c5d0809becd7638026";
+    hash = "sha256-MVcz+c5ExZZuda5ene4nhidd/zZNvXcAg+wCinQisME=";
+  };
+
+  extraBuildInputs = lib.optionals withHw [
+    libGL
+    libGLU
+  ];
+
+  makefile = "Makefile";
+  makeFlags = [
+    "HAVE_HW=${if withHw then "1" else "0"}"
+    "HAVE_LIGHTREC=1"
+  ];
+
+  meta = {
+    description =
+      "Port of Mednafen's PSX Engine core to libretro"
+      + lib.optionalString withHw " (with hardware acceleration support)";
+    homepage = "https://github.com/libretro/beetle-psx-libretro";
+    license = lib.licenses.gpl2Only;
+  };
+}

pkgs/applications/emulators/libretro/cores/beetle-saturn.nix

@@ -0,0 +1,28 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "mednafen-saturn";
+  version = "0-unstable-2025-07-01";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "beetle-saturn-libretro";
+    rev = "ccba5265f60f8e64a1984c9d14d383606193ea6a";
+    hash = "sha256-Ixjduv67sPJmf0BH8GaJyyTdpDV/e1UCWCeOb7vLggo=";
+  };
+
+  makefile = "Makefile";
+
+  meta = {
+    description = "Port of Mednafen's Saturn core to libretro";
+    homepage = "https://github.com/libretro/beetle-saturn-libretro";
+    license = lib.licenses.gpl2Only;
+    platforms = [
+      "aarch64-linux"
+      "x86_64-linux"
+    ];
+  };
+}

pkgs/applications/emulators/libretro/cores/beetle-supafaust.nix

@@ -0,0 +1,24 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "mednafen-supafaust";
+  version = "0-unstable-2024-09-30";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "supafaust";
+    rev = "e25f66765938d33f9ad5850e8d6cd597e55b7299";
+    hash = "sha256-ZgOXHhEHt54J2B1q6uA8v6uOK53g7idJlgoC4guTGow=";
+  };
+
+  makefile = "Makefile";
+
+  meta = {
+    description = "Port of Mednafen's experimental snes_faust core to libretro";
+    homepage = "https://github.com/libretro/supafaust";
+    license = lib.licenses.gpl2Only;
+  };
+}

pkgs/applications/emulators/libretro/cores/beetle-supergrafx.nix

@@ -0,0 +1,24 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "mednafen-supergrafx";
+  version = "0-unstable-2024-11-15";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "beetle-supergrafx-libretro";
+    rev = "a776133c34ae8da5daf7d9ccb43e3e292e2b07b0";
+    hash = "sha256-FemWW4EPQCwhrS7YEytf6fEeimdTTfzaDdyRNDIBQyk=";
+  };
+
+  makefile = "Makefile";
+
+  meta = {
+    description = "Port of Mednafen's SuperGrafx core to libretro";
+    homepage = "https://github.com/libretro/beetle-supergrafx-libretro";
+    license = lib.licenses.gpl2Only;
+  };
+}

pkgs/applications/emulators/libretro/cores/beetle-vb.nix

@@ -0,0 +1,24 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "mednafen-vb";
+  version = "0-unstable-2024-10-21";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "beetle-vb-libretro";
+    rev = "8f837ebc077afdd6652efb2827fd8308a07113ca";
+    hash = "sha256-eAnBubNhj78G4r8OHVqwFXGOSA9wEYI6ZwNyiwDW8W8=";
+  };
+
+  makefile = "Makefile";
+
+  meta = {
+    description = "Port of Mednafen's VirtualBoy core to libretro";
+    homepage = "https://github.com/libretro/beetle-vb-libretro";
+    license = lib.licenses.gpl2Only;
+  };
+}

pkgs/applications/emulators/libretro/cores/beetle-wswan.nix

@@ -0,0 +1,24 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "mednafen-wswan";
+  version = "0-unstable-2024-10-21";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "beetle-wswan-libretro";
+    rev = "2aeb47d3a58bf0360c686f842d9bb5bd201306fe";
+    hash = "sha256-LrF9p5tPtUamVLC41bJxcYDKvHmhVfwMieyIAdHaGmU=";
+  };
+
+  makefile = "Makefile";
+
+  meta = {
+    description = "Port of Mednafen's WonderSwan core to libretro";
+    homepage = "https://github.com/libretro/beetle-wswan-libretro";
+    license = lib.licenses.gpl2Only;
+  };
+}

pkgs/applications/emulators/libretro/cores/blastem.nix

@@ -0,0 +1,23 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "blastem";
+  version = "0-unstable-2022-07-26";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "blastem";
+    rev = "277e4a62668597d4f59cadda1cbafb844f981d45";
+    hash = "sha256-EHvKElPw8V5Z6LnMaQXBCdM4niLIlF3aBm8dRbeYXHs=";
+  };
+
+  meta = {
+    description = "Port of BlastEm to libretro";
+    homepage = "https://github.com/libretro/blastem";
+    license = lib.licenses.gpl3Only;
+    platforms = lib.platforms.x86;
+  };
+}

pkgs/applications/emulators/libretro/cores/bluemsx.nix

@@ -0,0 +1,22 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "bluemsx";
+  version = "0-unstable-2025-09-27";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "bluemsx-libretro";
+    rev = "7074551cf50ebdae78c8cce4e77560f9fc4575ca";
+    hash = "sha256-kmG0LCvWG+4wM+hwZ8TYQid12nZuQpNbaljym+glbz4=";
+  };
+
+  meta = {
+    description = "Port of BlueMSX to libretro";
+    homepage = "https://github.com/libretro/blueMSX-libretro";
+    license = lib.licenses.gpl2Only;
+  };
+}

pkgs/applications/emulators/libretro/cores/bsnes-hd.nix

@@ -0,0 +1,38 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+  xorg,
+}:
+mkLibretroCore {
+  core = "bsnes-hd-beta";
+  version = "0-unstable-2024-10-21";
+
+  src = fetchFromGitHub {
+    owner = "DerKoun";
+    repo = "bsnes-hd";
+    rev = "0bb7b8645e22ea2476cabd58f32e987b14686601";
+    hash = "sha256-YzWSZMn6v5hWIHnp6KmmpevCsf35Vi2BCcmFMnrFPH0=";
+  };
+
+  extraBuildInputs = [
+    xorg.libX11
+    xorg.libXext
+  ];
+
+  makefile = "GNUmakefile";
+  makeFlags = [
+    "-C"
+    "bsnes"
+    "target=libretro"
+    "platform=linux"
+  ];
+
+  postBuild = "cd bsnes/out";
+
+  meta = {
+    description = "Port of bsnes-hd to libretro";
+    homepage = "https://github.com/DerKoun/bsnes-hd";
+    license = lib.licenses.gpl3Only;
+  };
+}

pkgs/applications/emulators/libretro/cores/bsnes-mercury.nix

@@ -0,0 +1,26 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+  withProfile ? "accuracy",
+}:
+mkLibretroCore {
+  core = "bsnes-mercury-${withProfile}";
+  version = "0-unstable-2024-10-21";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "bsnes-mercury";
+    rev = "0f35d044bf2f2b879018a0500e676447e93a1db1";
+    hash = "sha256-skVREKYITZn+gKKSZmwuBCWrG0jb/pifwIgat8VyQ8U=";
+  };
+
+  makefile = "Makefile";
+  makeFlags = [ "PROFILE=${withProfile}" ];
+
+  meta = {
+    description = "Fork of bsnes with HLE DSP emulation restored (${withProfile} profile)";
+    homepage = "https://github.com/libretro/bsnes-mercury";
+    license = lib.licenses.gpl3Only;
+  };
+}

pkgs/applications/emulators/libretro/cores/bsnes.nix

@@ -0,0 +1,24 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "bsnes";
+  version = "0-unstable-2025-10-03";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "bsnes-libretro";
+    rev = "e0e6cef46582a436e8b08a339f4751411dc5bd63";
+    hash = "sha256-fIlTIF1042oWIHxqD7h7MdUfb6QDfIP0jqVlBNOTBmY=";
+  };
+
+  makefile = "Makefile";
+
+  meta = {
+    description = "Port of bsnes to libretro";
+    homepage = "https://github.com/libretro/bsnes-libretro";
+    license = lib.licenses.gpl3Only;
+  };
+}

pkgs/applications/emulators/libretro/cores/citra.nix

@@ -0,0 +1,51 @@
+{
+  lib,
+  cmake,
+  fetchFromGitHub,
+  libGL,
+  libGLU,
+  libX11,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "citra";
+  version = "0-unstable-2025-08-17";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "citra";
+    rev = "5263fae3344e5e9af43036e0e38bec2d10fb2407";
+    hash = "sha256-66kbE1taODjxXDhO3uV5R212nikyXfHwCHC/zamZuL0=";
+    fetchSubmodules = true;
+  };
+
+  makefile = "Makefile";
+
+  extraBuildInputs = [
+    libGL
+    libGLU
+    libX11
+  ];
+
+  extraNativeBuildInputs = [ cmake ];
+
+  # https://github.com/libretro/citra/blob/a31aff7e1a3a66f525b9ea61633d2c5e5b0c8b31/.gitlab-ci.yml#L6
+  cmakeFlags = [
+    (lib.cmakeBool "ENABLE_TESTS" false)
+    (lib.cmakeBool "ENABLE_DEDICATED_ROOM" false)
+    (lib.cmakeBool "ENABLE_SDL2" false)
+    (lib.cmakeBool "ENABLE_QT" false)
+    (lib.cmakeBool "ENABLE_WEB_SERVICE" false)
+    (lib.cmakeBool "ENABLE_SCRIPTING" false)
+    (lib.cmakeBool "ENABLE_OPENAL" false)
+    (lib.cmakeBool "ENABLE_LIBUSB" false)
+    (lib.cmakeBool "CITRA_ENABLE_BUNDLE_TARGET" false)
+    (lib.cmakeBool "CITRA_WARNINGS_AS_ERRORS" false)
+  ];
+
+  meta = {
+    description = "Port of Citra to libretro";
+    homepage = "https://github.com/libretro/citra";
+    license = lib.licenses.gpl2Plus;
+  };
+}

pkgs/applications/emulators/libretro/cores/desmume.nix

@@ -0,0 +1,40 @@
+{
+  lib,
+  stdenv,
+  fetchFromGitHub,
+  mkLibretroCore,
+  libpcap,
+  libGLU,
+  libGL,
+  xorg,
+}:
+mkLibretroCore {
+  core = "desmume";
+  version = "0-unstable-2024-10-21";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "desmume";
+    rev = "7f05a8d447b00acd9e0798aee97b4f72eb505ef9";
+    hash = "sha256-BttWMunVbfPOTGx+DV+3QyOwW+55tgXKVIn99DZhbBI=";
+  };
+
+  extraBuildInputs = [
+    libpcap
+    libGLU
+    libGL
+    xorg.libX11
+  ];
+
+  makeFlags =
+    lib.optional stdenv.hostPlatform.isAarch32 "platform=armv-unix"
+    ++ lib.optional (!stdenv.hostPlatform.isx86) "DESMUME_JIT=0";
+
+  preBuild = "cd desmume/src/frontend/libretro";
+
+  meta = {
+    description = "Port of DeSmuME to libretro";
+    homepage = "https://github.com/libretro/desmume";
+    license = lib.licenses.gpl2Plus;
+  };
+}

pkgs/applications/emulators/libretro/cores/desmume2015.nix

@@ -0,0 +1,40 @@
+{
+  lib,
+  stdenv,
+  fetchFromGitHub,
+  mkLibretroCore,
+  libpcap,
+  libGLU,
+  libGL,
+  xorg,
+}:
+mkLibretroCore {
+  core = "desmume2015";
+  version = "0-unstable-2022-04-05";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "desmume2015";
+    rev = "af397ff3d1f208c27f3922cc8f2b8e08884ba893";
+    hash = "sha256-kEb+og4g7rJvCinBZKcb42geZO6W8ynGsTG9yqYgI+U=";
+  };
+
+  extraBuildInputs = [
+    libpcap
+    libGLU
+    libGL
+    xorg.libX11
+  ];
+
+  makeFlags =
+    lib.optional stdenv.hostPlatform.isAarch32 "platform=armv-unix"
+    ++ lib.optional (!stdenv.hostPlatform.isx86) "DESMUME_JIT=0";
+
+  preBuild = "cd desmume";
+
+  meta = {
+    description = "Port of DeSmuME ~2015 to libretro";
+    homepage = "https://github.com/libretro/desmume2015";
+    license = lib.licenses.gpl2Plus;
+  };
+}

pkgs/applications/emulators/libretro/cores/dolphin.nix

@@ -0,0 +1,71 @@
+{
+  lib,
+  fetchFromGitHub,
+  cmake,
+  curl,
+  gettext,
+  hidapi,
+  libGL,
+  libGLU,
+  libevdev,
+  mkLibretroCore,
+  pcre,
+  pkg-config,
+  sfml,
+  udev,
+  xorg,
+}:
+mkLibretroCore {
+  core = "dolphin";
+  version = "0-unstable-2025-08-05";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "dolphin";
+    rev = "83438f9b1a2c832319876a1fda130a5e33d4ef87";
+    hash = "sha256-q4y+3uJ1tQ2OvlEvi/JNyIO/RfuWNIEKfVZ6xEWKFCg=";
+  };
+
+  extraNativeBuildInputs = [
+    cmake
+    curl
+    pkg-config
+  ];
+  extraBuildInputs = [
+    gettext
+    hidapi
+    libGL
+    libGLU
+    libevdev
+    pcre
+    sfml
+    udev
+    xorg.libSM
+    xorg.libX11
+    xorg.libXext
+    xorg.libXi
+    xorg.libXinerama
+    xorg.libXrandr
+    xorg.libXxf86vm
+    xorg.libpthreadstubs
+    xorg.libxcb
+    xorg.xcbutil
+  ];
+
+  makefile = "Makefile";
+  cmakeFlags = [
+    "-DLIBRETRO=ON"
+    "-DLIBRETRO_STATIC=1"
+    "-DENABLE_QT=OFF"
+    "-DENABLE_LTO=OFF"
+    "-DUSE_UPNP=OFF"
+    "-DUSE_DISCORD_PRESENCE=OFF"
+  ];
+  dontUseCmakeBuildDir = true;
+
+  meta = {
+    description = "Port of Dolphin to libretro";
+    homepage = "https://github.com/libretro/dolphin";
+    license = lib.licenses.gpl2Plus;
+  };
+}

pkgs/applications/emulators/libretro/cores/dosbox-pure.nix

@@ -0,0 +1,25 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "dosbox-pure";
+  version = "0-unstable-2025-09-28";
+
+  src = fetchFromGitHub {
+    owner = "schellingb";
+    repo = "dosbox-pure";
+    rev = "150a8e02ec53bfd5fc571587dab902c075f9e291";
+    hash = "sha256-3l566sa5sCjeppUD06chpTZ21CnfEzdRpZKM7jxkS2M=";
+  };
+
+  hardeningDisable = [ "format" ];
+  makefile = "Makefile";
+
+  meta = {
+    description = "Port of DOSBox to libretro aiming for simplicity and ease of use";
+    homepage = "https://github.com/schellingb/dosbox-pure";
+    license = lib.licenses.gpl2Only;
+  };
+}

pkgs/applications/emulators/libretro/cores/dosbox.nix

@@ -0,0 +1,24 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "dosbox";
+  version = "0-unstable-2022-07-18";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "dosbox-libretro";
+    rev = "b7b24262c282c0caef2368c87323ff8c381b3102";
+    hash = "sha256-PG2eElenlEpu0U/NIh53p0uLqewnEdaq6Aoak5E1P3I=";
+  };
+
+  env.CXXFLAGS = "-std=gnu++11";
+
+  meta = {
+    description = "Port of DOSBox to libretro";
+    homepage = "https://github.com/libretro/dosbox-libretro";
+    license = lib.licenses.gpl2Only;
+  };
+}

pkgs/applications/emulators/libretro/cores/easyrpg.nix

@@ -0,0 +1,88 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+  nix-update-script,
+  asciidoctor,
+  cmake,
+  doxygen,
+  pkg-config,
+  flac,
+  fluidsynth,
+  fmt,
+  freetype,
+  glib,
+  harfbuzz,
+  lhasa,
+  liblcf,
+  libpng,
+  libsndfile,
+  libsysprof-capture,
+  libvorbis,
+  libxmp,
+  mpg123,
+  nlohmann_json,
+  opusfile,
+  pcre2,
+  pixman,
+  speexdsp,
+  wildmidi,
+}:
+mkLibretroCore rec {
+  core = "easyrpg";
+  # liblcf needs to be updated before this.
+  version = "0.8.1.1";
+
+  src = fetchFromGitHub {
+    owner = "EasyRPG";
+    repo = "Player";
+    rev = version;
+    hash = "sha256-2a8IdYP6Suc8a+Np5G+xoNzuPxkk9gAgR+sjdKUf89M=";
+    fetchSubmodules = true;
+  };
+
+  extraNativeBuildInputs = [
+    asciidoctor
+    cmake
+    doxygen
+    pkg-config
+  ];
+  extraBuildInputs = [
+    flac # needed by libsndfile
+    fluidsynth
+    fmt
+    freetype
+    glib
+    harfbuzz
+    lhasa
+    liblcf
+    libpng
+    libsndfile
+    libsysprof-capture # needed by glib
+    libvorbis
+    libxmp
+    mpg123
+    nlohmann_json
+    opusfile
+    pcre2 # needed by glib
+    pixman
+    speexdsp
+    wildmidi
+  ];
+  cmakeFlags = [
+    "-DBUILD_SHARED_LIBS=ON"
+    "-DPLAYER_TARGET_PLATFORM=libretro"
+    "-DCMAKE_INSTALL_DATADIR=${placeholder "out"}/share"
+  ];
+  makefile = "Makefile";
+
+  # Since liblcf needs to be updated before this, we should not
+  # use the default unstableGitUpdater.
+  passthru.updateScript = nix-update-script { };
+
+  meta = {
+    description = "EasyRPG Player libretro port";
+    homepage = "https://github.com/EasyRPG/Player";
+    license = lib.licenses.gpl3Plus;
+  };
+}

pkgs/applications/emulators/libretro/cores/eightyone.nix

@@ -0,0 +1,22 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "81";
+  version = "0-unstable-2024-10-21";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "81-libretro";
+    rev = "ffc99f27f092addc9ddd34dd0e3a3d4d1c053cbf";
+    hash = "sha256-3AIXk3LJHZHWIojMeo2BJHWYDHQ17WVbkwjFhXM14ZE=";
+  };
+
+  meta = {
+    description = "Port of EightyOne to libretro";
+    homepage = "https://github.com/libretro/81-libretro";
+    license = lib.licenses.gpl3Only;
+  };
+}

pkgs/applications/emulators/libretro/cores/fbalpha2012.nix

@@ -0,0 +1,48 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+  runCommand,
+  zlib,
+}:
+mkLibretroCore rec {
+  core = "fbalpha2012";
+  version = "0-unstable-2024-10-21";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "fbalpha2012";
+    rev = "77167cea72e808384c136c8c163a6b4975ce7a84";
+    hash = "sha256-giEV09dT/e82bmDlRkxpkW04JcsEZc/enIPecqYtg3c=";
+  };
+
+  sourceRoot = "${src.name}/svn-current/trunk";
+
+  # unvendor zlib and broken minizip code
+  postPatch =
+    let
+      minizip-src = runCommand "minizip-src" { } ''
+        mkdir $out
+        unpackFile ${zlib.src}
+        cp */contrib/minizip/{unzip.*,ioapi.*,crypt.h} $out/
+      '';
+    in
+    ''
+      substituteInPlace ${makefile} \
+        --replace-fail '-I$(FBA_LIB_DIR)/zlib' ""
+
+      cp ${minizip-src}/* src/burner
+    '';
+
+  buildInputs = [ zlib ];
+
+  makeFlags = [ "EXTERNAL_ZLIB=1" ];
+
+  makefile = "makefile.libretro";
+
+  meta = {
+    description = "Port of Final Burn Alpha ~2012 to libretro";
+    homepage = "https://github.com/libretro/fbalpha2012";
+    license = lib.licenses.unfreeRedistributable;
+  };
+}

pkgs/applications/emulators/libretro/cores/fbneo.nix

@@ -0,0 +1,25 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "fbneo";
+  version = "0-unstable-2025-09-30";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "fbneo";
+    rev = "9726100ba22a558290860a2648e1e6a8b8719478";
+    hash = "sha256-mhXuHPwXtvuA8ltaLF3uOsBwLE0evJ2RiCrNX5hnRXM=";
+  };
+
+  makefile = "Makefile";
+  preBuild = "cd src/burner/libretro";
+
+  meta = {
+    description = "Port of FBNeo to libretro";
+    homepage = "https://github.com/libretro/fbneo";
+    license = lib.licenses.unfreeRedistributable;
+  };
+}

pkgs/applications/emulators/libretro/cores/fceumm.nix

@@ -0,0 +1,22 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "fceumm";
+  version = "0-unstable-2025-09-13";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "libretro-fceumm";
+    rev = "5cd4a43e16a7f3cd35628d481c347a0a98cfdfa2";
+    hash = "sha256-/FvXQlp20QMFg1uPmj2HSJFXhzBunygOmGEtGNGJyxk=";
+  };
+
+  meta = {
+    description = "FCEUmm libretro port";
+    homepage = "https://github.com/libretro/libretro-fceumm";
+    license = lib.licenses.gpl2Only;
+  };
+}

pkgs/applications/emulators/libretro/cores/flycast.nix

@@ -0,0 +1,38 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+  cmake,
+  libGL,
+  libGLU,
+}:
+mkLibretroCore {
+  core = "flycast";
+  version = "0-unstable-2025-10-03";
+
+  src = fetchFromGitHub {
+    owner = "flyinghead";
+    repo = "flycast";
+    rev = "af5f67c15d52b16d35e95671a5b74502288c4397";
+    hash = "sha256-eMkyNwGdgyYDmwqYy3xzzSTYqUcoKpQkDYFP8bQdz58=";
+    fetchSubmodules = true;
+  };
+
+  extraNativeBuildInputs = [ cmake ];
+  extraBuildInputs = [
+    libGL
+    libGLU
+  ];
+  cmakeFlags = [ "-DLIBRETRO=ON" ];
+  makefile = "Makefile";
+
+  meta = {
+    description = "Flycast libretro port";
+    homepage = "https://github.com/flyinghead/flycast";
+    license = lib.licenses.gpl2Only;
+    platforms = [
+      "aarch64-linux"
+      "x86_64-linux"
+    ];
+  };
+}

pkgs/applications/emulators/libretro/cores/fmsx.nix

@@ -0,0 +1,24 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "fmsx";
+  version = "0-unstable-2025-07-31";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "fmsx-libretro";
+    rev = "fbe4dfc4c3e3f7eb27089def3d663a905b181845";
+    hash = "sha256-1hZQO16SDB8n1wdTP67Kpns3izg/nPGl5M7wjFDBjGc=";
+  };
+
+  makefile = "Makefile";
+
+  meta = {
+    description = "FMSX libretro port";
+    homepage = "https://github.com/libretro/fmsx-libretro";
+    license = lib.licenses.unfreeRedistributable;
+  };
+}

pkgs/applications/emulators/libretro/cores/freeintv.nix

@@ -0,0 +1,24 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "freeintv";
+  version = "0-unstable-2025-03-05";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "freeintv";
+    rev = "6efc4b8fd4c7423ec1f5ff1913b854529135b565";
+    hash = "sha256-B5GEzI/U/F0IsppdOx5znu+4LdZOxQLcGAez+oR2PCI=";
+  };
+
+  makefile = "Makefile";
+
+  meta = {
+    description = "FreeIntv libretro port";
+    homepage = "https://github.com/libretro/freeintv";
+    license = lib.licenses.gpl3Only;
+  };
+}

pkgs/applications/emulators/libretro/cores/fuse.nix

@@ -0,0 +1,22 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "fuse";
+  version = "0-unstable-2024-11-24";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "fuse-libretro";
+    rev = "cad85b7b1b864c65734f71aa4a510b6f6536881c";
+    hash = "sha256-SdwdcR9szJJoUxQ4y8rh40Bdnn5ZI2qV4OcS39BFViQ=";
+  };
+
+  meta = {
+    description = "Port of the Fuse Unix Spectrum Emulator to libretro";
+    homepage = "https://github.com/libretro/fuse-libretro";
+    license = lib.licenses.gpl3Only;
+  };
+}

pkgs/applications/emulators/libretro/cores/gambatte.nix

@@ -0,0 +1,22 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "gambatte";
+  version = "0-unstable-2025-09-18";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "gambatte-libretro";
+    rev = "0092232a0aaef0ded0ead1c2003ccf7a85ccdfc0";
+    hash = "sha256-baiTlYArNSBz79Cm16Sg3VZEp909zMkF/ExqhrPYN80=";
+  };
+
+  meta = {
+    description = "Gambatte libretro port";
+    homepage = "https://github.com/libretro/gambatte-libretro";
+    license = lib.licenses.gpl2Only;
+  };
+}

pkgs/applications/emulators/libretro/cores/genesis-plus-gx.nix

@@ -0,0 +1,22 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "genesis-plus-gx";
+  version = "0-unstable-2025-10-06";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "Genesis-Plus-GX";
+    rev = "252a94c0c40047b52d9ecced567846a9dd5b2020";
+    hash = "sha256-Eys3iDJfi3bRuPjWRK34CEAN5o5MC+of1ktT7z2DdAI=";
+  };
+
+  meta = {
+    description = "Enhanced Genesis Plus libretro port";
+    homepage = "https://github.com/libretro/Genesis-Plus-GX";
+    license = lib.licenses.unfreeRedistributable;
+  };
+}

pkgs/applications/emulators/libretro/cores/gpsp.nix

@@ -0,0 +1,24 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "gpsp";
+  version = "0-unstable-2025-09-17";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "gpsp";
+    rev = "a545aafaf4e654a488f4588f4f302d8413a58066";
+    hash = "sha256-94J5WqlvBgfF/0aj0Pu61psG5pbhJVsZOiIbMdZ+ryQ=";
+  };
+
+  makefile = "Makefile";
+
+  meta = {
+    description = "Port of gpSP to libretro";
+    homepage = "https://github.com/libretro/gpsp";
+    license = lib.licenses.gpl2Only;
+  };
+}

pkgs/applications/emulators/libretro/cores/gw.nix

@@ -0,0 +1,24 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "gw";
+  version = "0-unstable-2024-10-21";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "gw-libretro";
+    rev = "435e5cfd4bf6aea03a84259e9b8dba3daf3ff5bd";
+    hash = "sha256-csaOqrZMSk9xZUlGAKgypV38q9XE7K6hLLdBC10g9Ao=";
+  };
+
+  makefile = "Makefile";
+
+  meta = {
+    description = "Port of Game and Watch to libretro";
+    homepage = "https://github.com/libretro/gw-libretro";
+    license = lib.licenses.zlib;
+  };
+}

pkgs/applications/emulators/libretro/cores/handy.nix

@@ -0,0 +1,24 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "handy";
+  version = "0-unstable-2025-06-16";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "libretro-handy";
+    rev = "fca239207e9c111da3e85d2faf0b1b9d7524e498";
+    hash = "sha256-8RpRhGgW5JWY6TZa9CEaXF66WpbjcjprorVqu+FGYu0=";
+  };
+
+  makefile = "Makefile";
+
+  meta = {
+    description = "Port of Handy to libretro";
+    homepage = "https://github.com/libretro/libretro-handy";
+    license = lib.licenses.zlib;
+  };
+}

pkgs/applications/emulators/libretro/cores/hatari.nix

@@ -0,0 +1,28 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+  which,
+}:
+mkLibretroCore {
+  core = "hatari";
+  version = "0-unstable-2024-10-21";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "hatari";
+    rev = "7008194d3f951a157997f67a820578f56f7feee0";
+    hash = "sha256-ZPzwUBaxs2ivE9n9cb5XB5mhixY9b6qIlq7OiVSLbqg=";
+  };
+
+  extraNativeBuildInputs = [ which ];
+  dontConfigure = true;
+  # zlib is already included in mkLibretroCore as buildInputs
+  makeFlags = [ "EXTERNAL_ZLIB=1" ];
+
+  meta = {
+    description = "Port of Hatari to libretro";
+    homepage = "https://github.com/libretro/hatari";
+    license = lib.licenses.gpl2Only;
+  };
+}

pkgs/applications/emulators/libretro/cores/mame.nix

@@ -0,0 +1,39 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+  python3,
+  alsa-lib,
+  libGLU,
+  libGL,
+}:
+mkLibretroCore {
+  core = "mame";
+  version = "0-unstable-2025-09-26";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "mame";
+    rev = "61743c76180f1ad454227ed1be0261a071d37d67";
+    hash = "sha256-R7zBl8Y5tnG+CkFgyTdwlGlCLwG/9Svs3hsJJp12fOY=";
+    fetchSubmodules = true;
+  };
+
+  extraNativeBuildInputs = [ python3 ];
+  extraBuildInputs = [
+    alsa-lib
+    libGLU
+    libGL
+  ];
+  # Setting this is breaking compilation of src/3rdparty/genie for some reason
+  makeFlags = [ "ARCH=" ];
+
+  meta = {
+    description = "Port of MAME to libretro";
+    homepage = "https://github.com/libretro/mame";
+    license = with lib.licenses; [
+      bsd3
+      gpl2Plus
+    ];
+  };
+}

pkgs/applications/emulators/libretro/cores/mame2000.nix

@@ -0,0 +1,27 @@
+{
+  lib,
+  stdenv,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "mame2000";
+  version = "0-unstable-2024-07-01";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "mame2000-libretro";
+    rev = "2ec60f6e1078cf9ba173e80432cc28fd4eea200f";
+    hash = "sha256-AYZj7bvO9oc7wmEBbj6DPRzpQFHl8diIcunSSpD4Vok=";
+  };
+
+  makefile = "Makefile";
+  makeFlags = lib.optional (!stdenv.hostPlatform.isx86) "IS_X86=0";
+
+  meta = {
+    description = "Port of MAME ~2000 to libretro, compatible with MAME 0.37b5 sets";
+    homepage = "https://github.com/libretro/mame2000-libretro";
+    # MAME license, non-commercial clause
+    license = lib.licenses.unfreeRedistributable;
+  };
+}

pkgs/applications/emulators/libretro/cores/mame2003-plus.nix

@@ -0,0 +1,25 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "mame2003-plus";
+  version = "0-unstable-2025-09-30";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "mame2003-plus-libretro";
+    rev = "59b8a9fb06a47a3ce6aecd09b07f3f001e3d9b08";
+    hash = "sha256-hfC/6UqUSDd2FWpcCVcw4pkAtyHJGCgvG4UKlkM+fpk=";
+  };
+
+  makefile = "Makefile";
+
+  meta = {
+    description = "Port of MAME ~2003+ to libretro, compatible with MAME 0.78 sets";
+    homepage = "https://github.com/libretro/mame2003-plus-libretro";
+    # MAME license, non-commercial clause
+    license = lib.licenses.unfreeRedistributable;
+  };
+}

pkgs/applications/emulators/libretro/cores/mame2003.nix

@@ -0,0 +1,28 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "mame2003";
+  version = "0-unstable-2025-08-26";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "mame2003-libretro";
+    rev = "dfddf4db86a3acd5997ce9419c7afd00ff6587a0";
+    hash = "sha256-GJRawFdlHCfBRiErJJ3ZvZDF1gvYVkuQvKXV1qUCCRQ=";
+  };
+
+  # Fix build with GCC 14
+  env.NIX_CFLAGS_COMPILE = "-Wno-error=incompatible-pointer-types";
+
+  makefile = "Makefile";
+
+  meta = {
+    description = "Port of MAME ~2003 to libretro, compatible with MAME 0.78 sets";
+    homepage = "https://github.com/libretro/mame2003-libretro";
+    # MAME license, non-commercial clause
+    license = lib.licenses.unfreeRedistributable;
+  };
+}

pkgs/applications/emulators/libretro/cores/mame2010.nix

@@ -0,0 +1,32 @@
+{
+  lib,
+  stdenv,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "mame2010";
+  version = "0-unstable-2024-10-23";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "mame2010-libretro";
+    rev = "c5b413b71e0a290c57fc351562cd47ba75bac105";
+    hash = "sha256-p+uEhxjr/07YJxInhW7oJDr8KurD36JxnSfJo17FOxM=";
+  };
+
+  makefile = "Makefile";
+  makeFlags = lib.optionals stdenv.hostPlatform.isAarch64 [
+    "PTR64=1"
+    "ARM_ENABLED=1"
+    "X86_SH2DRC=0"
+    "FORCE_DRC_C_BACKEND=1"
+  ];
+
+  meta = {
+    description = "Port of MAME ~2010 to libretro, compatible with MAME 0.139 sets";
+    homepage = "https://github.com/libretro/mame2010-libretro";
+    # MAME license, non-commercial clause
+    license = lib.licenses.unfreeRedistributable;
+  };
+}

pkgs/applications/emulators/libretro/cores/mame2015.nix

@@ -0,0 +1,32 @@
+{
+  lib,
+  alsa-lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+  python3,
+}:
+mkLibretroCore {
+  core = "mame2015";
+  version = "0-unstable-2023-10-31";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "mame2015-libretro";
+    rev = "316cd06349f2b34b4719f04f7c0d07569a74c764";
+    hash = "sha256-CBN04Jf26SIk8mKWlui5spQGokBvgFUCvFiC8NoBGw0=";
+  };
+
+  patches = [ ./patches/mame2015-python311.patch ];
+  makeFlags = [ "PYTHON=python3" ];
+  extraNativeBuildInputs = [ python3 ];
+  extraBuildInputs = [ alsa-lib ];
+  makefile = "Makefile";
+  # Build failures when this is set to a bigger number
+  NIX_BUILD_CORES = 8;
+  meta = {
+    description = "Port of MAME ~2015 to libretro, compatible with MAME 0.160 sets";
+    homepage = "https://github.com/libretro/mame2015-libretro";
+    # MAME license, non-commercial clause
+    license = lib.licenses.unfreeRedistributable;
+  };
+}

pkgs/applications/emulators/libretro/cores/mame2016.nix

@@ -0,0 +1,45 @@
+{
+  lib,
+  alsa-lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+  python3,
+  rapidjson,
+}:
+mkLibretroCore {
+  core = "mame2016";
+  version = "0-unstable-2022-04-06";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "mame2016-libretro";
+    rev = "01058613a0109424c4e7211e49ed83ac950d3993";
+    hash = "sha256-IsM7f/zlzvomVOYlinJVqZllUhDfy4NNTeTPtNmdVak=";
+  };
+
+  postPatch = ''
+    rm -r 3rdparty/rapidjson
+    ln -s ${lib.getInclude rapidjson} 3rdparty/rapidjson
+  '';
+
+  patches = [ ./patches/mame2016-python311.patch ];
+  extraNativeBuildInputs = [ python3 ];
+  extraBuildInputs = [ alsa-lib ];
+  makeFlags = [ "PYTHON_EXECUTABLE=python3" ];
+
+  env = {
+    # Build failures when this is set to a bigger number
+    NIX_BUILD_CORES = 8;
+    # Fix build errors in GCC 13
+    NIX_CFLAGS_COMPILE = "-Wno-error -fpermissive";
+  };
+
+  meta = {
+    description = "Port of MAME ~2016 to libretro, compatible with MAME 0.174 sets";
+    homepage = "https://github.com/libretro/mame2016-libretro";
+    license = with lib.licenses; [
+      bsd3
+      gpl2Plus
+    ];
+  };
+}

pkgs/applications/emulators/libretro/cores/melonds.nix

@@ -0,0 +1,30 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+  libGLU,
+  libGL,
+}:
+mkLibretroCore {
+  core = "melonds";
+  version = "0-unstable-2024-10-21";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "melonds";
+    rev = "7a3c11ff970cd36ca806961fae6db94b30dd5401";
+    hash = "sha256-YGkRdth7qdATcZpJkBd5MGOJFG1AbeJhAnyir+ssZYA=";
+  };
+
+  extraBuildInputs = [
+    libGLU
+    libGL
+  ];
+  makefile = "Makefile";
+
+  meta = {
+    description = "Port of MelonDS to libretro";
+    homepage = "https://github.com/libretro/melonds";
+    license = lib.licenses.gpl3Only;
+  };
+}

pkgs/applications/emulators/libretro/cores/mesen-s.nix

@@ -0,0 +1,26 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "mesen-s";
+  version = "0-unstable-2024-10-21";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "mesen-s";
+    rev = "d4fca31a6004041d99b02199688f84c009c55967";
+    hash = "sha256-mGGTLBRJCsNJg57LWSFndIv/LLzEmVRnv6gNbllkV/Y=";
+  };
+
+  makefile = "Makefile";
+  preBuild = "cd Libretro";
+  normalizeCore = false;
+
+  meta = {
+    description = "Port of Mesen-S to libretro";
+    homepage = "https://github.com/libretro/mesen-s";
+    license = lib.licenses.gpl3Only;
+  };
+}

pkgs/applications/emulators/libretro/cores/mesen.nix

@@ -0,0 +1,25 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "mesen";
+  version = "0-unstable-2024-10-21";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "mesen";
+    rev = "791c5e8153ee6e29691d45b5df2cf1151ff416f9";
+    hash = "sha256-PEEGJsyT+D/JwBxH2H9OY2MwaGt1i+1kmDZUT6zROic=";
+  };
+
+  makefile = "Makefile";
+  preBuild = "cd Libretro";
+
+  meta = {
+    description = "Port of Mesen to libretro";
+    homepage = "https://github.com/libretro/mesen";
+    license = lib.licenses.gpl3Only;
+  };
+}

pkgs/applications/emulators/libretro/cores/meteor.nix

@@ -0,0 +1,25 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "meteor";
+  version = "0-unstable-2020-12-28";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "meteor-libretro";
+    rev = "e533d300d0561564451bde55a2b73119c768453c";
+    hash = "sha256-zMkgzUz2rk0SD5ojY4AqaDlNM4k4QxuUxVBRBcn6TqQ=";
+  };
+
+  makefile = "Makefile";
+  preBuild = "cd libretro";
+
+  meta = {
+    description = "Port of Meteor to libretro";
+    homepage = "https://github.com/libretro/meteor";
+    license = lib.licenses.gpl3Only;
+  };
+}

pkgs/applications/emulators/libretro/cores/mgba.nix

@@ -0,0 +1,22 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "mgba";
+  version = "0-unstable-2025-07-24";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "mgba";
+    rev = "affc86e4c07b6e1e8363e0bc1c5ffb813a2e32c9";
+    hash = "sha256-4nKghnpMI1LuKOKc0vSknTuq+bA0wpBux/a5mGCyev8=";
+  };
+
+  meta = {
+    description = "Port of mGBA to libretro";
+    homepage = "https://github.com/libretro/mgba";
+    license = lib.licenses.mpl20;
+  };
+}

pkgs/applications/emulators/libretro/cores/mrboom.nix

@@ -0,0 +1,26 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore rec {
+  core = "mrboom";
+  version = "0-unstable-2024-10-21";
+
+  src = fetchFromGitHub {
+    owner = "Javanaise";
+    repo = "mrboom-libretro";
+    rev = "d011acfbdb2d93ed38bd684ccfa0db79bda1c932";
+    hash = "sha256-DjTSrp38MwdEtUZPTgZYEZHWgv48IN1oHkKsVqmOwII=";
+    fetchSubmodules = true;
+  };
+
+  makefile = "Makefile";
+  makeFlags = [ "GIT_VERSION=${builtins.substring 0 7 src.rev}" ];
+
+  meta = {
+    description = "Port of Mr.Boom to libretro";
+    homepage = "https://github.com/Javanaise/mrboom-libretro";
+    license = lib.licenses.mit;
+  };
+}

pkgs/applications/emulators/libretro/cores/mupen64plus.nix

@@ -0,0 +1,67 @@
+{
+  lib,
+  stdenv,
+  fetchFromGitHub,
+  fetchpatch2,
+  libGL,
+  libGLU,
+  libpng,
+  mkLibretroCore,
+  nasm,
+  xorg,
+}:
+mkLibretroCore {
+  core = "mupen64plus-next";
+  version = "0-unstable-2025-08-20";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "mupen64plus-libretro-nx";
+    rev = "222acbd3f98391458a047874d0372fe78e14fe94";
+    hash = "sha256-esssh/0nxNUDW/eMDQbWEdcSPuqLjnKLkK4mKN17HjQ=";
+  };
+
+  # Fix for GCC 14
+  # https://github.com/libretro/mupen64plus-libretro-nx/pull/526
+  patches = [
+    (fetchpatch2 {
+      name = "minizip-avoid_trying_to_compile_problematic_code.patch";
+      url = "https://github.com/libretro/mupen64plus-libretro-nx/commit/2b05477dd9cd99e7f9425f58cb544f454fc0d813.patch?full_index=1";
+      hash = "sha256-Q0yymeS6taeFRt6BH6IX5q1SDUMh2Zn3mFpdJguyk9M=";
+    })
+    (fetchpatch2 {
+      name = "EmuThread-align_with_co_create()_and_pthread_create().patch";
+      url = "https://github.com/libretro/mupen64plus-libretro-nx/commit/26dfd670ffdd5ed6a03e6704dc73f82c13d81dd9.patch?full_index=1";
+      hash = "sha256-BraCR/b8DTmVAWrUxiXp9nxBYvTpTW9OQAt8TP1eusI=";
+    })
+    (fetchpatch2 {
+      name = "Fix_compilation_of_bundled_libzlib.patch";
+      url = "https://github.com/libretro/mupen64plus-libretro-nx/commit/3c3e7fbc70b8f533c09c964cf468ba5e8d61351c.patch?full_index=1";
+      hash = "sha256-PCJLNYhhccnWLcnPaHL6tz+5qdjogJRYfzZIh3r+Vlk=";
+    })
+  ];
+
+  extraNativeBuildInputs = [
+    nasm
+  ];
+  extraBuildInputs = [
+    libGLU
+    libGL
+    libpng
+    xorg.libX11
+  ];
+  makefile = "Makefile";
+  makeFlags = [
+    "HAVE_PARALLEL_RDP=1"
+    "HAVE_PARALLEL_RSP=1"
+    "HAVE_THR_AL=1"
+    "LLE=1"
+    "WITH_DYNAREC=${stdenv.hostPlatform.parsed.cpu.name}"
+  ];
+
+  meta = {
+    description = "Libretro port of Mupen64 Plus";
+    homepage = "https://github.com/libretro/mupen64plus-libretro-nx";
+    license = lib.licenses.gpl3Only;
+  };
+}

pkgs/applications/emulators/libretro/cores/neocd.nix

@@ -0,0 +1,24 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "neocd";
+  version = "0-unstable-2024-10-21";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "neocd_libretro";
+    rev = "5eca2c8fd567b5261251c65ecafa8cf5b179d1d2";
+    hash = "sha256-72tmPCb7AXsamaQsMAPiYpgDR8DER2GTz4hcbN8wy7g=";
+  };
+
+  makefile = "Makefile";
+
+  meta = {
+    description = "NeoCD libretro port";
+    homepage = "https://github.com/libretro/neocd_libretro";
+    license = lib.licenses.lgpl3Only;
+  };
+}

pkgs/applications/emulators/libretro/cores/nestopia.nix

@@ -0,0 +1,25 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "nestopia";
+  version = "0-unstable-2025-08-14";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "nestopia";
+    rev = "51ad831fcd9f10a02dcb0cbf398c2cd1b028765e";
+    hash = "sha256-4TMJfD9KUBo5qJNOdnSEq2oEftL8Fpak6tHOP+tuG2U=";
+  };
+
+  makefile = "Makefile";
+  preBuild = "cd libretro";
+
+  meta = {
+    description = "Nestopia libretro port";
+    homepage = "https://github.com/libretro/nestopia";
+    license = lib.licenses.gpl2Only;
+  };
+}

pkgs/applications/emulators/libretro/cores/np2kai.nix

@@ -0,0 +1,37 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore rec {
+  core = "np2kai";
+  version = "0-unstable-2024-11-03";
+
+  src = fetchFromGitHub {
+    owner = "AZO234";
+    repo = "NP2kai";
+    rev = "4b109eaac4f79b04065ff5025319fce51537e04d";
+    hash = "sha256-tRFvK8d5Y/umy/b1BKN85ZSaDWyK95hII4RVng7A5uU=";
+    fetchSubmodules = true;
+  };
+
+  makeFlags = [
+    # See https://github.com/AZO234/NP2kai/tags
+    "NP2KAI_VERSION=rev.22"
+    "NP2KAI_HASH=${builtins.substring 0 7 src.rev}"
+  ];
+
+  # Fix build with GCC 14
+  env.NIX_CFLAGS_COMPILE = toString [
+    "-Wno-error=incompatible-pointer-types"
+    "-Wno-error=int-conversion"
+  ];
+
+  preBuild = "cd sdl";
+
+  meta = {
+    description = "Neko Project II kai libretro port";
+    homepage = "https://github.com/AZO234/NP2kai";
+    license = lib.licenses.mit;
+  };
+}

pkgs/applications/emulators/libretro/cores/nxengine.nix

@@ -0,0 +1,24 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "nxengine";
+  version = "0-unstable-2024-10-21";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "nxengine-libretro";
+    rev = "9adc032a5f6aa913d71d22042bb72cb11cf0f4a2";
+    hash = "sha256-8XjZp18lQU3xFNDjIuNsSHn7Mhba8Lze/IeRsy8/U1U=";
+  };
+
+  makefile = "Makefile";
+
+  meta = {
+    description = "NXEngine libretro port";
+    homepage = "https://github.com/libretro/nxengine-libretro";
+    license = lib.licenses.gpl3Only;
+  };
+}

pkgs/applications/emulators/libretro/cores/o2em.nix

@@ -0,0 +1,24 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "o2em";
+  version = "0-unstable-2024-10-21";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "libretro-o2em";
+    rev = "3ba4231c1dc8dcdf487428712856b790d2e4b8f3";
+    hash = "sha256-HhTkFm9Jte4wDPxTcXRgCg2tCfdQvo0M3nHRhlPmz/w=";
+  };
+
+  makefile = "Makefile";
+
+  meta = {
+    description = "Port of O2EM to libretro";
+    homepage = "https://github.com/libretro/libretro-o2em";
+    license = lib.licenses.artistic1;
+  };
+}

pkgs/applications/emulators/libretro/cores/opera.nix

@@ -0,0 +1,26 @@
+{
+  lib,
+  stdenv,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "opera";
+  version = "0-unstable-2024-10-16";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "opera-libretro";
+    rev = "67a29e60a4d194b675c9272b21b61eaa022f3ba3";
+    hash = "sha256-8896EWNbzVyr3MS1jtWD3pLur7ZvAhhJmrwkW3ayzkU=";
+  };
+
+  makefile = "Makefile";
+  makeFlags = [ "CC_PREFIX=${stdenv.cc.targetPrefix}" ];
+
+  meta = {
+    description = "Opera is a port of 4DO/libfreedo to libretro";
+    homepage = "https://github.com/libretro/libretro-o2em";
+    license = lib.licenses.unfreeRedistributable;
+  };
+}

pkgs/applications/emulators/libretro/cores/parallel-n64.nix

@@ -0,0 +1,48 @@
+{
+  lib,
+  stdenv,
+  fetchFromGitHub,
+  libGL,
+  libGLU,
+  libpng,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "parallel-n64";
+  version = "0-unstable-2025-08-05";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "parallel-n64";
+    rev = "50d3ddd55b5774da643d90d7ad1e3cbd2c618883";
+    hash = "sha256-l42EKrZH1JwTxpkjl8vTrMsd2NJCeKV9Owgj+EB81eM=";
+  };
+
+  extraBuildInputs = [
+    libGLU
+    libGL
+    libpng
+  ];
+  makefile = "Makefile";
+  makeFlags = [
+    "HAVE_PARALLEL=1"
+    "HAVE_PARALLEL_RSP=1"
+    "ARCH=${stdenv.hostPlatform.parsed.cpu.name}"
+  ];
+  postPatch = lib.optionalString stdenv.hostPlatform.isAarch64 ''
+    sed -i -e '1 i\CPUFLAGS += -DARM_FIX -DNO_ASM -DARM_ASM -DDONT_WANT_ARM_OPTIMIZATIONS -DARM64' Makefile \
+    && sed -i -e 's,CPUFLAGS  :=,,g' Makefile
+  '';
+
+  meta = {
+    description = "Parallel Mupen64plus rewrite for libretro";
+    homepage = "https://github.com/libretro/parallel-n64";
+    license = lib.licenses.gpl3Only;
+    badPlatforms = [
+      # ./mupen64plus-core/src/r4300/new_dynarec/arm64/linkage_aarch64.o: in function `.E12':
+      # (.text+0x5b4): relocation truncated to fit: R_AARCH64_CONDBR19 against symbol `invalidate_block' defined in .text section in ./mupen64plus-core/src/r4300/new_dynarec/new_dynarec_64.o
+      # collect2: error: ld returned 1 exit status
+      "aarch64-linux"
+    ];
+  };
+}

pkgs/applications/emulators/libretro/cores/patches/mame2015-python311.patch

@@ -0,0 +1,61 @@
+diff --git a/src/emu/cpu/m6502/m6502make.py b/src/emu/cpu/m6502/m6502make.py
+index da29fc722a..3de641dd69 100755
+--- a/src/emu/cpu/m6502/m6502make.py
++++ b/src/emu/cpu/m6502/m6502make.py
+@@ -16,7 +16,7 @@ def load_opcodes(fname):
+     opcodes = []
+     logging.info("load_opcodes: %s", fname)
+     try:
+-        f = open(fname, "rU")
++        f = open(fname, "r")
+     except Exception:
+         err = sys.exc_info()[1]
+         logging.error("cannot read opcodes file %s [%s]", fname, err)
+@@ -39,7 +39,7 @@ def load_disp(fname):
+     logging.info("load_disp: %s", fname)
+     states = []
+     try:
+-        f = open(fname, "rU")
++        f = open(fname, "r")
+     except Exception:
+         err = sys.exc_info()[1]
+         logging.error("cannot read display file %s [%s]", fname, err)
+diff --git a/src/emu/cpu/m6809/m6809make.py b/src/emu/cpu/m6809/m6809make.py
+index c3d5b0f66e..79f6f90cdd 100644
+--- a/src/emu/cpu/m6809/m6809make.py
++++ b/src/emu/cpu/m6809/m6809make.py
+@@ -14,7 +14,7 @@ def load_file(fname, lines):
+ 	if path != "":
+ 		path += '/'
+ 	try:
+-		f = open(fname, "rU")
++		f = open(fname, "r")
+ 	except Exception:
+ 		err = sys.exc_info()[1]
+ 		sys.stderr.write("Cannot read opcodes file %s [%s]\n" % (fname, err))
+diff --git a/src/emu/cpu/mcs96/mcs96make.py b/src/emu/cpu/mcs96/mcs96make.py
+index ec5ec37a78..7ab806a653 100644
+--- a/src/emu/cpu/mcs96/mcs96make.py
++++ b/src/emu/cpu/mcs96/mcs96make.py
+@@ -71,7 +71,7 @@ def __init__(self, fname, is_196):
+         self.ea = {}
+         self.macros = {}
+         try:
+-            f = open(fname, "rU")
++            f = open(fname, "r")
+         except Exception:
+             err = sys.exc_info()[1]
+             sys.stderr.write("Cannot read opcodes file %s [%s]\n" % (fname, err))
+diff --git a/src/emu/cpu/tms57002/tmsmake.py b/src/emu/cpu/tms57002/tmsmake.py
+index 62092097d9..78f9fe43cd 100755
+--- a/src/emu/cpu/tms57002/tmsmake.py
++++ b/src/emu/cpu/tms57002/tmsmake.py
+@@ -326,7 +326,7 @@ def ins_cmp_dasm(a, b):
+ def LoadLst(filename):
+     instructions = []
+     ins = None
+-    for n, line in enumerate(open(filename, "rU")):
++    for n, line in enumerate(open(filename, "r")):
+         line = line.rstrip()
+         if not line and ins:
+             # new lines separate intructions

pkgs/applications/emulators/libretro/cores/patches/mame2016-python311.patch

@@ -0,0 +1,74 @@
+diff --git a/scripts/build/verinfo.py b/scripts/build/verinfo.py
+index a73d8ad268..82a80c0984 100644
+--- a/scripts/build/verinfo.py
++++ b/scripts/build/verinfo.py
+@@ -63,7 +63,7 @@ def extract_version(input):
+ build, outfmt, srcfile, dstfile = parse_args()
+ 
+ try:
+-    fp = open(srcfile, 'rU')
++    fp = open(srcfile, 'r')
+ except IOError:
+     sys.stderr.write("Unable to open source file '%s'\n" % srcfile)
+     sys.exit(1)
+diff --git a/src/devices/cpu/m6502/m6502make.py b/src/devices/cpu/m6502/m6502make.py
+index 8bcd85f8e2..557b175966 100755
+--- a/src/devices/cpu/m6502/m6502make.py
++++ b/src/devices/cpu/m6502/m6502make.py
+@@ -18,7 +18,7 @@ def load_opcodes(fname):
+     opcodes = []
+     logging.info("load_opcodes: %s", fname)
+     try:
+-        f = open(fname, "rU")
++        f = open(fname, "r")
+     except Exception:
+         err = sys.exc_info()[1]
+         logging.error("cannot read opcodes file %s [%s]", fname, err)
+@@ -41,7 +41,7 @@ def load_disp(fname):
+     logging.info("load_disp: %s", fname)
+     states = []
+     try:
+-        f = open(fname, "rU")
++        f = open(fname, "r")
+     except Exception:
+         err = sys.exc_info()[1]
+         logging.error("cannot read display file %s [%s]", fname, err)
+diff --git a/src/devices/cpu/m6809/m6809make.py b/src/devices/cpu/m6809/m6809make.py
+index 8838b96019..e1ea25db06 100644
+--- a/src/devices/cpu/m6809/m6809make.py
++++ b/src/devices/cpu/m6809/m6809make.py
+@@ -16,7 +16,7 @@ def load_file(fname, lines):
+ 	if path != "":
+ 		path += '/'
+ 	try:
+-		f = open(fname, "rU")
++		f = open(fname, "r")
+ 	except Exception:
+ 		err = sys.exc_info()[1]
+ 		sys.stderr.write("Cannot read opcodes file %s [%s]\n" % (fname, err))
+diff --git a/src/devices/cpu/mcs96/mcs96make.py b/src/devices/cpu/mcs96/mcs96make.py
+index b4844942e3..207208d2b6 100644
+--- a/src/devices/cpu/mcs96/mcs96make.py
++++ b/src/devices/cpu/mcs96/mcs96make.py
+@@ -73,7 +73,7 @@ def __init__(self, fname, is_196):
+         self.ea = {}
+         self.macros = {}
+         try:
+-            f = open(fname, "rU")
++            f = open(fname, "r")
+         except Exception:
+             err = sys.exc_info()[1]
+             sys.stderr.write("Cannot read opcodes file %s [%s]\n" % (fname, err))
+diff --git a/src/devices/cpu/tms57002/tmsmake.py b/src/devices/cpu/tms57002/tmsmake.py
+index e2e12b5a4b..942ec09537 100755
+--- a/src/devices/cpu/tms57002/tmsmake.py
++++ b/src/devices/cpu/tms57002/tmsmake.py
+@@ -323,7 +323,7 @@ def AddInfo(self, line):
+ def LoadLst(filename):
+     instructions = []
+     ins = None
+-    for n, line in enumerate(open(filename, "rU")):
++    for n, line in enumerate(open(filename, "r")):
+         line = line.rstrip()
+         if not line and ins:
+             # new lines separate intructions

pkgs/applications/emulators/libretro/cores/pcsx-rearmed.nix

@@ -0,0 +1,24 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "pcsx-rearmed";
+  version = "0-unstable-2025-08-16";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "pcsx_rearmed";
+    rev = "228c14e10e9a8fae0ead8adf30daad2cdd8655b9";
+    hash = "sha256-89/1axjha8Pv2MVWIr1P3TGq43HwhHeUZRUHkes52tk=";
+  };
+
+  dontConfigure = true;
+
+  meta = {
+    description = "Port of PCSX ReARMed to libretro";
+    homepage = "https://github.com/libretro/pcsx_rearmed";
+    license = lib.licenses.gpl2Only;
+  };
+}

pkgs/applications/emulators/libretro/cores/pcsx2.nix

@@ -0,0 +1,62 @@
+{
+  lib,
+  cmake,
+  fetchFromGitHub,
+  libGL,
+  libGLU,
+  mkLibretroCore,
+  perl,
+  pkg-config,
+  xz,
+}:
+mkLibretroCore {
+  core = "pcsx2";
+  version = "0-unstable-2025-09-29";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "ps2";
+    rev = "9485a53fa5aa2bff17e04518116107f81a8c82e3";
+    hash = "sha256-xkRPESbLNX9AFOIdEA9iW4Xn7hdJXfdi+TEbegC8KXA=";
+    fetchSubmodules = true;
+  };
+
+  extraNativeBuildInputs = [
+    cmake
+    pkg-config
+  ];
+
+  extraBuildInputs = [
+    libGL
+    libGLU
+    perl
+    xz
+  ];
+
+  cmakeFlags = with lib.strings; [
+    # Workaround the following error:
+    # > CMake Error at 3rdparty/libzip/libzip/CMakeLists.txt:1 (cmake_minimum_required):
+    # > Compatibility with CMake < 3.5 has been removed from CMake.
+    #
+    # > Update the VERSION argument <min> value.  Or, use the <min>...<max> syntax
+    # > to tell CMake that the project requires at least <min> but has been updated
+    # > to work with policies introduced by <max> or earlier.
+    #
+    # > Or, add -DCMAKE_POLICY_VERSION_MINIMUM=3.5 to try configuring anyway.
+    (cmakeFeature "CMAKE_POLICY_VERSION_MINIMUM" "3.5")
+    # Explicitly set ARCH_FLAG to avoid -march=native
+    # https://github.com/libretro/ps2/blob/9485a53fa5aa2bff17e04518116107f81a8c82e3/cmake/BuildParameters.cmake#L106-L117
+    (cmakeFeature "ARCH_FLAG" "-msse4.1")
+  ];
+
+  makefile = "Makefile";
+
+  preInstall = "cd bin";
+
+  meta = {
+    description = "Port of PCSX2 to libretro";
+    homepage = "https://github.com/libretro/ps2";
+    license = lib.licenses.gpl3Plus;
+    platforms = lib.platforms.x86;
+  };
+}

pkgs/applications/emulators/libretro/cores/picodrive.nix

@@ -0,0 +1,25 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "picodrive";
+  version = "0-unstable-2025-05-31";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "picodrive";
+    rev = "975cdafb613e84e305f87b43e70d1e19df7e60e0";
+    hash = "sha256-hRM3DtaTVz35QEkUrPoNXHdS7TgazWIFKU1e+jjfigg=";
+    fetchSubmodules = true;
+  };
+
+  dontConfigure = true;
+
+  meta = {
+    description = "Fast MegaDrive/MegaCD/32X emulator";
+    homepage = "https://github.com/libretro/picodrive";
+    license = lib.licenses.unfreeRedistributable;
+  };
+}

pkgs/applications/emulators/libretro/cores/play.nix

@@ -0,0 +1,53 @@
+{
+  lib,
+  boost,
+  bzip2,
+  cmake,
+  curl,
+  fetchFromGitHub,
+  icu,
+  libGL,
+  libGLU,
+  mkLibretroCore,
+  openssl,
+  xorg,
+}:
+mkLibretroCore {
+  core = "play";
+  version = "0-unstable-2025-09-22";
+
+  src = fetchFromGitHub {
+    owner = "jpd002";
+    repo = "Play-";
+    rev = "a3d84f977b721cda752299739fec525addce1ef9";
+    hash = "sha256-NVuz52c0zt/c8b3uoJWpKO2TMM9PFh/thQt8CfRFZhk=";
+    fetchSubmodules = true;
+  };
+
+  extraBuildInputs = [
+    boost
+    bzip2
+    curl
+    openssl
+    icu
+    libGL
+    libGLU
+    xorg.libX11
+  ];
+  extraNativeBuildInputs = [ cmake ];
+  makefile = "Makefile";
+  cmakeFlags = [
+    "-DBUILD_PLAY=OFF"
+    "-DBUILD_LIBRETRO_CORE=ON"
+  ];
+  postBuild = "cd Source/ui_libretro";
+  # FIXME: workaround the following GCC 13 error:
+  # error: 'printf' was not declared in this scop
+  env.CXXFLAGS = "-include cstdio";
+
+  meta = {
+    description = "Port of Play! to libretro";
+    homepage = "https://github.com/jpd002/Play-";
+    license = lib.licenses.bsd2;
+  };
+}

pkgs/applications/emulators/libretro/cores/ppsspp.nix

@@ -0,0 +1,59 @@
+{
+  lib,
+  cmake,
+  fetchFromGitHub,
+  libGL,
+  libGLU,
+  libzip,
+  mkLibretroCore,
+  pkg-config,
+  python3,
+  snappy,
+  xorg,
+}:
+mkLibretroCore {
+  core = "ppsspp";
+  version = "0-unstable-2025-09-30";
+
+  src = fetchFromGitHub {
+    owner = "hrydgard";
+    repo = "ppsspp";
+    rev = "2f4b1adc98d36a4d3fdd0a413d65a7a0b306ed4c";
+    hash = "sha256-9azuw2uCwc1cpqnrqCBGp4uS2AHOc2gBJIaOTSullvs=";
+    fetchSubmodules = true;
+  };
+
+  extraNativeBuildInputs = [
+    cmake
+    pkg-config
+    python3
+  ];
+  extraBuildInputs = [
+    libGLU
+    libGL
+    libzip
+    snappy
+    xorg.libX11
+  ];
+  makefile = "Makefile";
+  cmakeFlags = [
+    "-DLIBRETRO=ON"
+    # USE_SYSTEM_FFMPEG=ON causes several glitches during video playback
+    # See: https://github.com/NixOS/nixpkgs/issues/304616
+    "-DUSE_SYSTEM_FFMPEG=OFF"
+    "-DUSE_SYSTEM_SNAPPY=ON"
+    "-DUSE_SYSTEM_LIBZIP=ON"
+    "-DOpenGL_GL_PREFERENCE=GLVND"
+  ];
+  postBuild = "cd lib";
+
+  meta = {
+    description = "PPSSPP libretro port";
+    homepage = "https://github.com/hrydgard/ppsspp";
+    license = lib.licenses.gpl2Plus;
+    badPlatforms = [
+      # error: cannot convert 'uint32x4_t' to 'int' in initialization
+      "aarch64-linux"
+    ];
+  };
+}

pkgs/applications/emulators/libretro/cores/prboom.nix

@@ -0,0 +1,24 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "prboom";
+  version = "0-unstable-2024-12-27";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "libretro-prboom";
+    rev = "b3e5f8b2e8855f9c6fc7ff7a0036e4e61379177d";
+    hash = "sha256-FtPn54s/QUu8fjeUBaAQMZ6EWAixV+gawuCv2eM+qrs=";
+  };
+
+  makefile = "Makefile";
+
+  meta = {
+    description = "Prboom libretro port";
+    homepage = "https://github.com/libretro/libretro-prboom";
+    license = lib.licenses.gpl2Only;
+  };
+}

pkgs/applications/emulators/libretro/cores/prosystem.nix

@@ -0,0 +1,24 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "prosystem";
+  version = "0-unstable-2024-10-21";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "prosystem-libretro";
+    rev = "acae250da8d98b8b9707cd499e2a0bf6d8500652";
+    hash = "sha256-AGF3K3meZEEsnzHmMTCsFXBGNvWVELH8a8qET07kP0o=";
+  };
+
+  makefile = "Makefile";
+
+  meta = {
+    description = "Port of ProSystem to libretro";
+    homepage = "https://github.com/libretro/prosystem-libretro";
+    license = lib.licenses.gpl2Only;
+  };
+}

pkgs/applications/emulators/libretro/cores/puae.nix

@@ -0,0 +1,24 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "puae";
+  version = "0-unstable-2025-08-19";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "libretro-uae";
+    rev = "9e2aa770a9b6b0a4e1f4fc05eb0db6c8e7aba8ee";
+    hash = "sha256-YTS0OgYJCGawpsDHvU79dDA+iePna5Fcab2Le3vdVSk=";
+  };
+
+  makefile = "Makefile";
+
+  meta = {
+    description = "Amiga emulator based on WinUAE";
+    homepage = "https://github.com/libretro/libretro-uae";
+    license = lib.licenses.gpl2Only;
+  };
+}

pkgs/applications/emulators/libretro/cores/quicknes.nix

@@ -0,0 +1,24 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "quicknes";
+  version = "0-unstable-2024-10-21";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "QuickNES_Core";
+    rev = "dbf19f73e3eb9701d1c7f5898f57c097e05c9fbd";
+    hash = "sha256-oFQUMp1imc8JCsQYCy1BtIUmTC+u0VcoYHpWzUpKNb4=";
+  };
+
+  makefile = "Makefile";
+
+  meta = {
+    description = "QuickNES libretro port";
+    homepage = "https://github.com/libretro/QuickNES_Core";
+    license = lib.licenses.lgpl21Plus;
+  };
+}

pkgs/applications/emulators/libretro/cores/same_cdi.nix

@@ -0,0 +1,50 @@
+{
+  lib,
+  alsa-lib,
+  fetchFromGitHub,
+  fetchpatch2,
+  libGL,
+  libGLU,
+  mkLibretroCore,
+  portaudio,
+  python3,
+  xorg,
+}:
+mkLibretroCore {
+  core = "same_cdi";
+  version = "0-unstable-2025-01-31";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "same_cdi";
+    rev = "7ee1d8e9cb4307b7cd44ee1dd757e9b3f48f41d5";
+    hash = "sha256-EGE3NuO0gpZ8MKPypH8rFwJiv4QsdKuIyLKVuKTcvws=";
+  };
+
+  patches = [
+    (fetchpatch2 {
+      # https://github.com/libretro/same_cdi/pull/19
+      name = "Fixes_compilation_errors_as_per_issue_9.patch";
+      url = "https://github.com/libretro/same_cdi/commit/bf3212315546cdd514118a4f3ea764fd9c401091.patch?full_index=1";
+      hash = "sha256-1vrMxnRtEWUt+6I/4PSfCPDIUAGKkXFd2UVr9473ngo=";
+    })
+  ];
+
+  extraNativeBuildInputs = [ python3 ];
+  extraBuildInputs = [
+    alsa-lib
+    libGL
+    libGLU
+    portaudio
+    xorg.libX11
+  ];
+
+  meta = {
+    description = "SAME_CDI is a libretro core to play CD-i games";
+    homepage = "https://github.com/libretro/same_cdi";
+    license = with lib.licenses; [
+      bsd3
+      gpl2Plus
+    ];
+  };
+}

pkgs/applications/emulators/libretro/cores/sameboy.nix

@@ -0,0 +1,31 @@
+{
+  lib,
+  fetchFromGitHub,
+  hexdump,
+  mkLibretroCore,
+  which,
+}:
+mkLibretroCore {
+  core = "sameboy";
+  version = "0-unstable-2024-06-28";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "sameboy";
+    rev = "51433012a871a44555492273fd22f29867d12655";
+    hash = "sha256-vPT2uRGbXmJ62yig/yk485/TxEEKHJeWdNrM2c0IjKw=";
+  };
+
+  extraNativeBuildInputs = [
+    which
+    hexdump
+  ];
+  preBuild = "cd libretro";
+  makefile = "Makefile";
+
+  meta = {
+    description = "QuickNES libretro port";
+    homepage = "https://github.com/libretro/QuickNES_Core";
+    license = lib.licenses.mit;
+  };
+}

pkgs/applications/emulators/libretro/cores/scummvm.nix

@@ -0,0 +1,63 @@
+{
+  lib,
+  fetchFromGitHub,
+  libGL,
+  libGLU,
+  which,
+  zip,
+  mkLibretroCore,
+}:
+let
+  # https://github.com/libretro/scummvm/blob/master/backends/platform/libretro/dependencies.mk#L8-L14
+  libretro-common-src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "libretro-common";
+    rev = "70ed90c42ddea828f53dd1b984c6443ddb39dbd6";
+    hash = "sha256-ItsUNbJCK/m/3VprK/zHD2UF5MhPC8b7jM3qS/oHU2A=";
+  };
+
+  libretro-deps-src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "libretro-deps";
+    rev = "abf5246b016569759e7d1b0ea91bb98c2e34d160";
+    hash = "sha256-tdGytbSNMCfMuXIAUunOSVw9qFq2rRaruELhZwEmhWE=";
+  };
+in
+mkLibretroCore {
+  core = "scummvm";
+  version = "0-unstable-2025-07-03";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "scummvm";
+    rev = "686cdd13719b92554fa46b264c512ca7deec7a96";
+    hash = "sha256-3w1rYVPX7ENGUgKdrFRQShWoEXfagxdtzd98m1hKeYU=";
+  };
+
+  extraBuildInputs = [
+    libGL
+    libGLU
+    zip
+  ];
+
+  extraNativeBuildInputs = [ which ];
+
+  preConfigure = "cd backends/platform/libretro";
+
+  preBuild = ''
+    mkdir -p deps/libretro-{common,deps}
+    cp -a ${libretro-common-src}/* deps/libretro-common
+    cp -a ${libretro-deps-src}/* deps/libretro-deps
+    chmod -R u+w deps/
+
+    patchShebangs ./scripts/*
+  '';
+
+  makefile = "Makefile";
+
+  meta = {
+    description = "Libretro port of ScummVM";
+    homepage = "https://github.com/libretro/scummvm";
+    license = lib.licenses.gpl2Only;
+  };
+}

pkgs/applications/emulators/libretro/cores/smsplus-gx.nix

@@ -0,0 +1,22 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "smsplus";
+  version = "0-unstable-2024-10-21";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "smsplus-gx";
+    rev = "c642bbd0680b5959180a420036108893d0aec961";
+    hash = "sha256-SHBrwzLyVZ4Tp/kVCnr4xj2B3pmdg+JUmZUM7hYao64=";
+  };
+
+  meta = {
+    description = "SMS Plus GX libretro port";
+    homepage = "https://github.com/libretro/smsplus-gx";
+    license = lib.licenses.gpl2Plus;
+  };
+}

pkgs/applications/emulators/libretro/cores/snes9x.nix

@@ -0,0 +1,25 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "snes9x";
+  version = "0-unstable-2025-09-24";
+
+  src = fetchFromGitHub {
+    owner = "snes9xgit";
+    repo = "snes9x";
+    rev = "94115094ead4da7342bd638bb4cc293ae7d297c0";
+    hash = "sha256-tXSQursZcV/gsLlydVRD1KUR8t2zztfby7cDno1xtHc=";
+  };
+
+  makefile = "Makefile";
+  preBuild = "cd libretro";
+
+  meta = {
+    description = "Port of SNES9x git to libretro";
+    homepage = "https://github.com/snes9xgit/snes9x";
+    license = lib.licenses.unfreeRedistributable;
+  };
+}

pkgs/applications/emulators/libretro/cores/snes9x2002.nix

@@ -0,0 +1,24 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "snes9x2002";
+  version = "0-unstable-2024-10-21";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "snes9x2002";
+    rev = "a0709ec7dcd6de2fbebb43106bd757b649e3b7cf";
+    hash = "sha256-rrMPhXIsQ48fVvjgZgC3xeqm9k9kwe43oZNzs2d/h1Q=";
+  };
+
+  makefile = "Makefile";
+
+  meta = {
+    description = "Optimized port/rewrite of SNES9x 1.39 to Libretro";
+    homepage = "https://github.com/libretro/snes9x2002";
+    license = lib.licenses.unfreeRedistributable;
+  };
+}

pkgs/applications/emulators/libretro/cores/snes9x2005.nix

@@ -0,0 +1,26 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+  withBlarggAPU ? false,
+}:
+mkLibretroCore {
+  core = "snes9x2005" + lib.optionalString withBlarggAPU "-plus";
+  version = "0-unstable-2024-10-21";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "snes9x2005";
+    rev = "74d871db9b4dba6dbe6c5ecebc88cbf255be5349";
+    hash = "sha256-YlRMjSEo9sdLVRzWGSJlnBeqg6wUhZi8l3ffzUaKQIQ=";
+  };
+
+  makefile = "Makefile";
+  makeFlags = lib.optionals withBlarggAPU [ "USE_BLARGG_APU=1" ];
+
+  meta = {
+    description = "Optimized port/rewrite of SNES9x 1.43 to Libretro";
+    homepage = "https://github.com/libretro/snes9x2005";
+    license = lib.licenses.unfreeRedistributable;
+  };
+}

pkgs/applications/emulators/libretro/cores/snes9x2010.nix

@@ -0,0 +1,24 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore rec {
+  core = "snes9x2010";
+  version = "0-unstable-2024-11-19";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "snes9x2010";
+    rev = "f9ae8fd28b13070a945a829ccf41cbf90a21d0f7";
+    hash = "sha256-nsExAYnzDenPvXzeN60jGykRTrCGMi/mRPV+vgS8ZtE=";
+  };
+
+  makeFlags = [ "GIT_VERSION=${builtins.substring 0 7 src.rev}" ];
+
+  meta = {
+    description = "Optimized port/rewrite of SNES9x 1.52+ to Libretro";
+    homepage = "https://github.com/libretro/snes9x2010";
+    license = lib.licenses.unfreeRedistributable;
+  };
+}

pkgs/applications/emulators/libretro/cores/stella.nix

@@ -0,0 +1,26 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "stella";
+  version = "0-unstable-2025-08-28";
+
+  src = fetchFromGitHub {
+    owner = "stella-emu";
+    repo = "stella";
+    rev = "749a21f653cf85fcedf4fe514ac8df1ad308be8e";
+    hash = "sha256-N5E+Ci6cTvG9/Yqg5NdPZB00ThNKc6SS7qCWlmCYd6I=";
+  };
+
+  makefile = "Makefile";
+  preBuild = "cd src/os/libretro";
+  dontConfigure = true;
+
+  meta = {
+    description = "Port of Stella to libretro";
+    homepage = "https://github.com/stella-emu/stella";
+    license = lib.licenses.gpl2Only;
+  };
+}

pkgs/applications/emulators/libretro/cores/stella2014.nix

@@ -0,0 +1,24 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "stella2014";
+  version = "0-unstable-2024-10-21";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "stella2014-libretro";
+    rev = "3cc89f0d316d6c924a5e3f4011d17421df58e615";
+    hash = "sha256-2gnFWau7F45SdzoqDUlqYXfXVE1EUPozHZv7BhyRRIA=";
+  };
+
+  makefile = "Makefile";
+
+  meta = {
+    description = "Port of Stella ~2014 to libretro";
+    homepage = "https://github.com/libretro/stella2014-libretro";
+    license = lib.licenses.gpl2Only;
+  };
+}

pkgs/applications/emulators/libretro/cores/swanstation.nix

@@ -0,0 +1,29 @@
+{
+  lib,
+  cmake,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "swanstation";
+  version = "0-unstable-2025-08-02";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "swanstation";
+    rev = "4d309c05fd7bdc503d91d267bd542edb8d192b09";
+    hash = "sha256-v51xgsyVtyipss0VWqMTI69MLTJ4Eb37hJfbQfid/0Q=";
+  };
+
+  extraNativeBuildInputs = [ cmake ];
+  makefile = "Makefile";
+  cmakeFlags = [
+    "-DBUILD_LIBRETRO_CORE=ON"
+  ];
+
+  meta = {
+    description = "Port of SwanStation (a fork of DuckStation) to libretro";
+    homepage = "https://github.com/libretro/swanstation";
+    license = lib.licenses.gpl3Only;
+  };
+}

pkgs/applications/emulators/libretro/cores/tgbdual.nix

@@ -0,0 +1,24 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "tgbdual";
+  version = "0-unstable-2025-05-10";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "tgbdual-libretro";
+    rev = "933707c0ba8f12360f6d79712f735a917713709a";
+    hash = "sha256-58OLuF14aSJGhmXR0RGgPpuHLXYk9LOz7LX03AEFPr4=";
+  };
+
+  makefile = "Makefile";
+
+  meta = {
+    description = "Port of TGBDual to libretro";
+    homepage = "https://github.com/libretro/tgbdual-libretro";
+    license = lib.licenses.gpl2Only;
+  };
+}

pkgs/applications/emulators/libretro/cores/thepowdertoy.nix

@@ -0,0 +1,27 @@
+{
+  lib,
+  cmake,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "thepowdertoy";
+  version = "0-unstable-2025-09-16";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "ThePowderToy";
+    rev = "cb3cd4c2e5beddb98b34e6b800fa24e8f96322d9";
+    hash = "sha256-k3XWkkSuQC3IBhhI96qkTrlGH/oJu941HaAvR28V5i0=";
+  };
+
+  extraNativeBuildInputs = [ cmake ];
+  makefile = "Makefile";
+  postBuild = "cd src";
+
+  meta = {
+    description = "Port of The Powder Toy to libretro";
+    homepage = "https://github.com/libretro/ThePowderToy";
+    license = lib.licenses.gpl3Only;
+  };
+}

pkgs/applications/emulators/libretro/cores/tic80.nix

@@ -0,0 +1,41 @@
+{
+  lib,
+  cmake,
+  fetchFromGitHub,
+  mkLibretroCore,
+  pkg-config,
+}:
+mkLibretroCore {
+  core = "tic80";
+  version = "0-unstable-2024-05-13";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "tic-80";
+    rev = "6412f72d0f4725c153ce3d245729b829e713542e";
+    hash = "sha256-RFp8sTSRwD+cgW3EYk3nBeY+zVKgZVQI5mjtfe2a64Q=";
+    fetchSubmodules = true;
+  };
+
+  extraNativeBuildInputs = [
+    cmake
+    pkg-config
+  ];
+  makefile = "Makefile";
+  cmakeFlags = [
+    "-DBUILD_LIBRETRO=ON"
+    "-DBUILD_DEMO_CARTS=OFF"
+    "-DBUILD_PRO=OFF"
+    "-DBUILD_PLAYER=OFF"
+    "-DBUILD_SDL=OFF"
+    "-DBUILD_SOKOL=OFF"
+  ];
+  preConfigure = "cd core";
+  postBuild = "cd lib";
+
+  meta = {
+    description = "Port of TIC-80 to libretro";
+    homepage = "https://github.com/libretro/tic-80";
+    license = lib.licenses.mit;
+  };
+}

pkgs/applications/emulators/libretro/cores/twenty-fortyeight.nix

@@ -0,0 +1,22 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "2048";
+  version = "0-unstable-2024-12-27";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "libretro-2048";
+    rev = "86e02d3c2dd76858db7370f5df1ccfc33b3abee1";
+    hash = "sha256-k3te3XZCw86NkqXpjZaYWi4twUvh9UBkiPyqposLTEs=";
+  };
+
+  meta = {
+    description = "Port of 2048 puzzle game to libretro";
+    homepage = "https://github.com/libretro/libretro-2048";
+    license = lib.licenses.unlicense;
+  };
+}

pkgs/applications/emulators/libretro/cores/vba-m.nix

@@ -0,0 +1,25 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "vbam";
+  version = "0-unstable-2024-10-21";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "vbam-libretro";
+    rev = "379dd97301458a51fb69dd93ba21b64f81e01ef2";
+    hash = "sha256-UbXSHdKfa91MpcYityo+aILbI0DfkLqZh8YfGcRx/BI=";
+  };
+
+  makefile = "Makefile";
+  preBuild = "cd src/libretro";
+
+  meta = {
+    description = "VBA-M libretro port";
+    homepage = "https://github.com/libretro/vbam-libretro";
+    license = lib.licenses.gpl2Only;
+  };
+}

pkgs/applications/emulators/libretro/cores/vba-next.nix

@@ -0,0 +1,22 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "vba-next";
+  version = "0-unstable-2024-10-21";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "vba-next";
+    rev = "d0ec7f3e209a91b903bb9d2c2397fef2bb3cca32";
+    hash = "sha256-g3Eb1bMGjt+H7awUlMCtKVu223+UvyQ2VBh8aQG1yo8=";
+  };
+
+  meta = {
+    description = "VBA-M libretro port with modifications for speed";
+    homepage = "https://github.com/libretro/vba-next";
+    license = lib.licenses.gpl2Only;
+  };
+}

pkgs/applications/emulators/libretro/cores/vecx.nix

@@ -0,0 +1,29 @@
+{
+  lib,
+  fetchFromGitHub,
+  libGL,
+  libGLU,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "vecx";
+  version = "0-unstable-2025-04-12";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "libretro-vecx";
+    rev = "841229a6a81a0461d08af6488f252dcec5266c6a";
+    hash = "sha256-bWhXXJCf/ax7n/sOfXibGvcFnCnmULcALoBR1uyIN+I=";
+  };
+
+  extraBuildInputs = [
+    libGL
+    libGLU
+  ];
+
+  meta = {
+    description = "VBA-M libretro port with modifications for speed";
+    homepage = "https://github.com/libretro/libretro-vecx";
+    license = lib.licenses.gpl3Only;
+  };
+}

pkgs/applications/emulators/libretro/cores/vice.nix

@@ -0,0 +1,29 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+  type ? "x64",
+}:
+mkLibretroCore {
+  core = "vice-${type}";
+  version = "0-unstable-2025-07-30";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "vice-libretro";
+    rev = "e9f8ac034ddef3025f0567768f7af8219f7cfdb8";
+    hash = "sha256-Rut9NyBF0yPFDYtFKzvSESaZL6CFhfcw6OFIHMeuzHk=";
+  };
+
+  makefile = "Makefile";
+
+  env = {
+    EMUTYPE = "${type}";
+  };
+
+  meta = {
+    description = "Port of vice to libretro";
+    homepage = "https://github.com/libretro/vice-libretro";
+    license = lib.licenses.gpl2;
+  };
+}

pkgs/applications/emulators/libretro/cores/virtualjaguar.nix

@@ -0,0 +1,24 @@
+{
+  lib,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "virtualjaguar";
+  version = "0-unstable-2024-10-21";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "virtualjaguar-libretro";
+    rev = "48096c1f6f8b98cfff048a5cb4e6a86686631072";
+    hash = "sha256-DLBQQARHqupGGQS8YznDSSMuxQliyt5apGA4Ku2jlYo=";
+  };
+
+  makefile = "Makefile";
+
+  meta = {
+    description = "Port of VirtualJaguar to libretro";
+    homepage = "https://github.com/libretro/virtualjaguar-libretro";
+    license = lib.licenses.gpl3Only;
+  };
+}

pkgs/applications/emulators/libretro/cores/yabause.nix

@@ -0,0 +1,28 @@
+{
+  lib,
+  stdenv,
+  fetchFromGitHub,
+  mkLibretroCore,
+}:
+mkLibretroCore {
+  core = "yabause";
+  version = "0-unstable-2024-10-21";
+
+  src = fetchFromGitHub {
+    owner = "libretro";
+    repo = "yabause";
+    rev = "c35712c5ed33e18d77097f2059a036e19d1d66f2";
+    hash = "sha256-4/gxWNPkGKBf4ti7ZF4GXgng6ZPyM9prrvK0S5tZ6V8=";
+  };
+
+  makefile = "Makefile";
+  # Disable SSE for non-x86. DYNAREC doesn't build on aarch64.
+  makeFlags = lib.optional (!stdenv.hostPlatform.isx86) "HAVE_SSE=0";
+  preBuild = "cd yabause/src/libretro";
+
+  meta = {
+    description = "Port of Yabause to libretro";
+    homepage = "https://github.com/libretro/yabause";
+    license = lib.licenses.gpl2Only;
+  };
+}

pkgs/applications/emulators/libretro/default.nix

@@ -0,0 +1,215 @@
+{
+  lib,
+  newScope,
+}:
+
+lib.makeScope newScope (self: {
+  mkLibretroCore = self.callPackage ./mkLibretroCore.nix { };
+
+  atari800 = self.callPackage ./cores/atari800.nix { };
+
+  beetle-gba = self.callPackage ./cores/beetle-gba.nix { };
+
+  beetle-lynx = self.callPackage ./cores/beetle-lynx.nix { };
+
+  beetle-ngp = self.callPackage ./cores/beetle-ngp.nix { };
+
+  beetle-pce = self.callPackage ./cores/beetle-pce.nix { };
+
+  beetle-pce-fast = self.callPackage ./cores/beetle-pce-fast.nix { };
+
+  beetle-pcfx = self.callPackage ./cores/beetle-pcfx.nix { };
+
+  beetle-psx = self.callPackage ./cores/beetle-psx.nix { };
+
+  beetle-psx-hw = self.beetle-psx.override { withHw = true; };
+
+  beetle-saturn = self.callPackage ./cores/beetle-saturn.nix { };
+
+  beetle-supafaust = self.callPackage ./cores/beetle-supafaust.nix { };
+
+  beetle-supergrafx = self.callPackage ./cores/beetle-supergrafx.nix { };
+
+  beetle-vb = self.callPackage ./cores/beetle-vb.nix { };
+
+  beetle-wswan = self.callPackage ./cores/beetle-wswan.nix { };
+
+  blastem = self.callPackage ./cores/blastem.nix { };
+
+  bluemsx = self.callPackage ./cores/bluemsx.nix { };
+
+  bsnes = self.callPackage ./cores/bsnes.nix { };
+
+  bsnes-hd = self.callPackage ./cores/bsnes-hd.nix { };
+
+  bsnes-mercury = self.callPackage ./cores/bsnes-mercury.nix { };
+
+  bsnes-mercury-balanced = self.bsnes-mercury.override { withProfile = "balanced"; };
+
+  bsnes-mercury-performance = self.bsnes-mercury.override { withProfile = "performance"; };
+
+  citra = self.callPackage ./cores/citra.nix { };
+
+  desmume = self.callPackage ./cores/desmume.nix { };
+
+  desmume2015 = self.callPackage ./cores/desmume2015.nix { };
+
+  dolphin = self.callPackage ./cores/dolphin.nix { };
+
+  dosbox = self.callPackage ./cores/dosbox.nix { };
+
+  dosbox-pure = self.callPackage ./cores/dosbox-pure.nix { };
+
+  easyrpg = self.callPackage ./cores/easyrpg.nix { };
+
+  eightyone = self.callPackage ./cores/eightyone.nix { };
+
+  fbalpha2012 = self.callPackage ./cores/fbalpha2012.nix { };
+
+  fbneo = self.callPackage ./cores/fbneo.nix { };
+
+  fceumm = self.callPackage ./cores/fceumm.nix { };
+
+  flycast = self.callPackage ./cores/flycast.nix { };
+
+  fmsx = self.callPackage ./cores/fmsx.nix { };
+
+  freeintv = self.callPackage ./cores/freeintv.nix { };
+
+  fuse = self.callPackage ./cores/fuse.nix { };
+
+  gambatte = self.callPackage ./cores/gambatte.nix { };
+
+  genesis-plus-gx = self.callPackage ./cores/genesis-plus-gx.nix { };
+
+  gpsp = self.callPackage ./cores/gpsp.nix { };
+
+  gw = self.callPackage ./cores/gw.nix { };
+
+  handy = self.callPackage ./cores/handy.nix { };
+
+  hatari = self.callPackage ./cores/hatari.nix { };
+
+  mame = self.callPackage ./cores/mame.nix { };
+
+  mame2000 = self.callPackage ./cores/mame2000.nix { };
+
+  mame2003 = self.callPackage ./cores/mame2003.nix { };
+
+  mame2003-plus = self.callPackage ./cores/mame2003-plus.nix { };
+
+  mame2010 = self.callPackage ./cores/mame2010.nix { };
+
+  mame2015 = self.callPackage ./cores/mame2015.nix { };
+
+  mame2016 = self.callPackage ./cores/mame2016.nix { };
+
+  melonds = self.callPackage ./cores/melonds.nix { };
+
+  mesen = self.callPackage ./cores/mesen.nix { };
+
+  mesen-s = self.callPackage ./cores/mesen-s.nix { };
+
+  meteor = self.callPackage ./cores/meteor.nix { };
+
+  mgba = self.callPackage ./cores/mgba.nix { };
+
+  mrboom = self.callPackage ./cores/mrboom.nix { };
+
+  mupen64plus = self.callPackage ./cores/mupen64plus.nix { };
+
+  neocd = self.callPackage ./cores/neocd.nix { };
+
+  nestopia = self.callPackage ./cores/nestopia.nix { };
+
+  np2kai = self.callPackage ./cores/np2kai.nix { };
+
+  nxengine = self.callPackage ./cores/nxengine.nix { };
+
+  o2em = self.callPackage ./cores/o2em.nix { };
+
+  opera = self.callPackage ./cores/opera.nix { };
+
+  parallel-n64 = self.callPackage ./cores/parallel-n64.nix { };
+
+  pcsx2 = self.callPackage ./cores/pcsx2.nix { };
+
+  pcsx-rearmed = self.callPackage ./cores/pcsx-rearmed.nix { };
+  pcsx_rearmed = lib.lowPrio (self.pcsx-rearmed); # added 2024-11-20
+
+  picodrive = self.callPackage ./cores/picodrive.nix { };
+
+  play = self.callPackage ./cores/play.nix { };
+
+  ppsspp = self.callPackage ./cores/ppsspp.nix { };
+
+  prboom = self.callPackage ./cores/prboom.nix { };
+
+  prosystem = self.callPackage ./cores/prosystem.nix { };
+
+  puae = self.callPackage ./cores/puae.nix { };
+
+  quicknes = self.callPackage ./cores/quicknes.nix { };
+
+  same_cdi = self.callPackage ./cores/same_cdi.nix { }; # the name is not a typo
+
+  sameboy = self.callPackage ./cores/sameboy.nix { };
+
+  scummvm = self.callPackage ./cores/scummvm.nix { };
+
+  smsplus-gx = self.callPackage ./cores/smsplus-gx.nix { };
+
+  snes9x = self.callPackage ./cores/snes9x.nix { };
+
+  snes9x2002 = self.callPackage ./cores/snes9x2002.nix { };
+
+  snes9x2005 = self.callPackage ./cores/snes9x2005.nix { };
+
+  snes9x2005-plus = self.snes9x2005.override { withBlarggAPU = true; };
+
+  snes9x2010 = self.callPackage ./cores/snes9x2010.nix { };
+
+  stella = self.callPackage ./cores/stella.nix { };
+
+  stella2014 = self.callPackage ./cores/stella2014.nix { };
+
+  swanstation = self.callPackage ./cores/swanstation.nix { };
+
+  tgbdual = self.callPackage ./cores/tgbdual.nix { };
+
+  thepowdertoy = self.callPackage ./cores/thepowdertoy.nix { };
+
+  tic80 = self.callPackage ./cores/tic80.nix { };
+
+  twenty-fortyeight = self.callPackage ./cores/twenty-fortyeight.nix { };
+
+  vba-m = self.callPackage ./cores/vba-m.nix { };
+
+  vba-next = self.callPackage ./cores/vba-next.nix { };
+
+  vecx = self.callPackage ./cores/vecx.nix { };
+
+  vice-x64 = self.callPackage ./cores/vice.nix { type = "x64"; };
+
+  vice-x128 = self.callPackage ./cores/vice.nix { type = "x128"; };
+
+  vice-x64dtv = self.callPackage ./cores/vice.nix { type = "x64dtv"; };
+
+  vice-x64sc = self.callPackage ./cores/vice.nix { type = "x64sc"; };
+
+  vice-xcbm2 = self.callPackage ./cores/vice.nix { type = "xcbm2"; };
+
+  vice-xcbm5x0 = self.callPackage ./cores/vice.nix { type = "xcbm5x0"; };
+
+  vice-xpet = self.callPackage ./cores/vice.nix { type = "xpet"; };
+
+  vice-xplus4 = self.callPackage ./cores/vice.nix { type = "xplus4"; };
+
+  vice-xscpu64 = self.callPackage ./cores/vice.nix { type = "xscpu64"; };
+
+  vice-xvic = self.callPackage ./cores/vice.nix { type = "xvic"; };
+
+  virtualjaguar = self.callPackage ./cores/virtualjaguar.nix { };
+
+  yabause = self.callPackage ./cores/yabause.nix { };
+})

pkgs/applications/emulators/libretro/mkLibretroCore.nix

@@ -0,0 +1,101 @@
+{
+  # Deps
+  lib,
+  stdenv,
+  makeWrapper,
+  retroarch-bare,
+  unstableGitUpdater,
+  zlib,
+}:
+
+lib.extendMkDerivation {
+  constructDrv = stdenv.mkDerivation;
+
+  excludeDrvArgNames = [
+    "core"
+    "extraBuildInputs"
+    "extraNativeBuildInputs"
+    "libretroCore"
+    "normalizeCore"
+  ];
+
+  extendDrvArgs =
+    finalAttrs:
+    {
+      core,
+      enableParallelBuilding ? true,
+      extraBuildInputs ? [ ],
+      extraNativeBuildInputs ? [ ],
+      makeFlags ? [ ],
+      makefile ? "Makefile.libretro",
+      meta ? { },
+      passthru ? { },
+      strictDeps ? true,
+      ## Location of resulting RetroArch core on $out
+      libretroCore ? "/lib/retroarch/cores",
+      ## The core filename is derived from the core name
+      ## Setting `normalizeCore` to `true` will convert `-` to `_` on the core filename
+      normalizeCore ? true,
+      ...
+    }:
+    let
+      d2u = if normalizeCore then (lib.replaceStrings [ "-" ] [ "_" ]) else (x: x);
+      coreDir = placeholder "out" + libretroCore;
+      coreFilename = "${d2u core}_libretro${stdenv.hostPlatform.extensions.sharedLibrary}";
+      mainProgram = "retroarch-${core}";
+    in
+    {
+      pname = "libretro-${core}";
+
+      buildInputs = [ zlib ] ++ extraBuildInputs;
+      nativeBuildInputs = [ makeWrapper ] ++ extraNativeBuildInputs;
+
+      inherit enableParallelBuilding makefile strictDeps;
+
+      makeFlags = [
+        "platform=${
+          {
+            linux = "unix";
+            darwin = "osx";
+            windows = "win";
+          }
+          .${stdenv.hostPlatform.parsed.kernel.name} or stdenv.hostPlatform.parsed.kernel.name
+        }"
+        "ARCH=${
+          {
+            armv7l = "arm";
+            armv6l = "arm";
+            aarch64 = "arm64";
+            i686 = "x86";
+          }
+          .${stdenv.hostPlatform.parsed.cpu.name} or stdenv.hostPlatform.parsed.cpu.name
+        }"
+      ]
+      ++ makeFlags;
+
+      installPhase = ''
+        runHook preInstall
+
+        install -Dt ${coreDir} ${coreFilename}
+        makeWrapper ${retroarch-bare}/bin/retroarch $out/bin/${mainProgram} \
+          --add-flags "-L ${coreDir}/${coreFilename}"
+
+        runHook postInstall
+      '';
+
+      passthru = {
+        inherit core libretroCore;
+        # libretro repos sometimes has a fake tag like "Current", ignore
+        # it by setting hardcodeZeroVersion
+        updateScript = unstableGitUpdater { hardcodeZeroVersion = true; };
+      }
+      // passthru;
+
+      meta = {
+        inherit mainProgram;
+        inherit (retroarch-bare.meta) platforms;
+        teams = [ lib.teams.libretro ];
+      }
+      // meta;
+    };
+}