diff --git a/pkgs/by-name/du/duckstation-unofficial/0001-remove-cubeb-vendor.patch b/pkgs/by-name/du/duckstation-unofficial/0001-remove-cubeb-vendor.patch
new file mode 100644
index 0000000000000..f3d745bb055f0
--- /dev/null
+++ b/pkgs/by-name/du/duckstation-unofficial/0001-remove-cubeb-vendor.patch
@@ -0,0 +1,34 @@
+diff --git a/dep/CMakeLists.txt b/dep/CMakeLists.txt
+index 633267c66..8f9c65c39 100644
+--- a/dep/CMakeLists.txt
++++ b/dep/CMakeLists.txt
+@@ -25,9 +25,9 @@ add_subdirectory(rcheevos EXCLUDE_FROM_ALL)
+ disable_compiler_warnings_for_target(rcheevos)
+ add_subdirectory(rapidyaml EXCLUDE_FROM_ALL)
+ disable_compiler_warnings_for_target(rapidyaml)
+-add_subdirectory(cubeb EXCLUDE_FROM_ALL)
+-disable_compiler_warnings_for_target(cubeb)
+-disable_compiler_warnings_for_target(speex)
++find_package(cubeb REQUIRED GLOBAL)
++add_library(cubeb ALIAS cubeb::cubeb)
++# disable_compiler_warnings_for_target(speex)
+ 
+ if(ENABLE_OPENGL)
+   add_subdirectory(glad EXCLUDE_FROM_ALL)
+diff --git a/src/util/cubeb_audio_stream.cpp b/src/util/cubeb_audio_stream.cpp
+index e01cbfe78..294c6e59d 100644
+--- a/src/util/cubeb_audio_stream.cpp
++++ b/src/util/cubeb_audio_stream.cpp
+@@ -261,9 +261,9 @@ std::vector<std::pair<std::string, std::string>> AudioStream::GetCubebDriverName
+   std::vector<std::pair<std::string, std::string>> names;
+   names.emplace_back(std::string(), TRANSLATE_STR("AudioStream", "Default"));
+ 
+-  const char** cubeb_names = cubeb_get_backend_names();
+-  for (u32 i = 0; cubeb_names[i] != nullptr; i++)
+-    names.emplace_back(cubeb_names[i], cubeb_names[i]);
++  cubeb_backend_names cubeb_names = cubeb_get_backend_names();
++  for (u32 i = 0; i < cubeb_names.count; i++)
++    names.emplace_back(cubeb_names.names[i], cubeb_names.names[i]);
+   return names;
+ }
+ 
diff --git a/pkgs/by-name/du/duckstation-unofficial/0002-fix-NEON-intrinsics.patch b/pkgs/by-name/du/duckstation-unofficial/0002-fix-NEON-intrinsics.patch
new file mode 100644
index 0000000000000..571a15d4aad62
--- /dev/null
+++ b/pkgs/by-name/du/duckstation-unofficial/0002-fix-NEON-intrinsics.patch
@@ -0,0 +1,70 @@
+From 19e094e5c7aaaf375a13424044521701e85c8313 Mon Sep 17 00:00:00 2001
+From: OPNA2608 <opna2608@protonmail.com>
+Date: Thu, 9 Jan 2025 17:46:25 +0100
+Subject: [PATCH] Fix usage of NEON intrinsics
+
+---
+ src/common/gsvector_neon.h | 12 ++++++------
+ 1 file changed, 6 insertions(+), 6 deletions(-)
+
+diff --git a/src/common/gsvector_neon.h b/src/common/gsvector_neon.h
+index e4991af5e..61b8dc09b 100644
+--- a/src/common/gsvector_neon.h
++++ b/src/common/gsvector_neon.h
+@@ -867,7 +867,7 @@ public:
+ 
+   ALWAYS_INLINE int mask() const
+   {
+-    const uint32x2_t masks = vshr_n_u32(vreinterpret_u32_s32(v2s), 31);
++    const uint32x2_t masks = vshr_n_u32(vreinterpret_u32_f32(v2s), 31);
+     return (vget_lane_u32(masks, 0) | (vget_lane_u32(masks, 1) << 1));
+   }
+ 
+@@ -2882,7 +2882,7 @@ public:
+   ALWAYS_INLINE GSVector4 gt64(const GSVector4& v) const
+   {
+ #ifdef CPU_ARCH_ARM64
+-    return GSVector4(vreinterpretq_f32_f64(vcgtq_f64(vreinterpretq_f64_f32(v4s), vreinterpretq_f64_f32(v.v4s))));
++    return GSVector4(vreinterpretq_f32_u64(vcgtq_f64(vreinterpretq_f64_f32(v4s), vreinterpretq_f64_f32(v.v4s))));
+ #else
+     GSVector4 ret;
+     ret.U64[0] = (F64[0] > v.F64[0]) ? 0xFFFFFFFFFFFFFFFFULL : 0;
+@@ -2894,7 +2894,7 @@ public:
+   ALWAYS_INLINE GSVector4 eq64(const GSVector4& v) const
+   {
+ #ifdef CPU_ARCH_ARM64
+-    return GSVector4(vreinterpretq_f32_f64(vceqq_f64(vreinterpretq_f64_f32(v4s), vreinterpretq_f64_f32(v.v4s))));
++    return GSVector4(vreinterpretq_f32_u64(vceqq_f64(vreinterpretq_f64_f32(v4s), vreinterpretq_f64_f32(v.v4s))));
+ #else
+     GSVector4 ret;
+     ret.U64[0] = (F64[0] == v.F64[0]) ? 0xFFFFFFFFFFFFFFFFULL : 0;
+@@ -2906,7 +2906,7 @@ public:
+   ALWAYS_INLINE GSVector4 lt64(const GSVector4& v) const
+   {
+ #ifdef CPU_ARCH_ARM64
+-    return GSVector4(vreinterpretq_f32_f64(vcgtq_f64(vreinterpretq_f64_f32(v4s), vreinterpretq_f64_f32(v.v4s))));
++    return GSVector4(vreinterpretq_f32_u64(vcgtq_f64(vreinterpretq_f64_f32(v4s), vreinterpretq_f64_f32(v.v4s))));
+ #else
+     GSVector4 ret;
+     ret.U64[0] = (F64[0] < v.F64[0]) ? 0xFFFFFFFFFFFFFFFFULL : 0;
+@@ -2918,7 +2918,7 @@ public:
+   ALWAYS_INLINE GSVector4 ge64(const GSVector4& v) const
+   {
+ #ifdef CPU_ARCH_ARM64
+-    return GSVector4(vreinterpretq_f32_f64(vcgeq_f64(vreinterpretq_f64_f32(v4s), vreinterpretq_f64_f32(v.v4s))));
++    return GSVector4(vreinterpretq_f32_u64(vcgeq_f64(vreinterpretq_f64_f32(v4s), vreinterpretq_f64_f32(v.v4s))));
+ #else
+     GSVector4 ret;
+     ret.U64[0] = (F64[0] >= v.F64[0]) ? 0xFFFFFFFFFFFFFFFFULL : 0;
+@@ -2930,7 +2930,7 @@ public:
+   ALWAYS_INLINE GSVector4 le64(const GSVector4& v) const
+   {
+ #ifdef CPU_ARCH_ARM64
+-    return GSVector4(vreinterpretq_f32_f64(vcleq_f64(vreinterpretq_f64_f32(v4s), vreinterpretq_f64_f32(v.v4s))));
++    return GSVector4(vreinterpretq_f32_u64(vcleq_f64(vreinterpretq_f64_f32(v4s), vreinterpretq_f64_f32(v.v4s))));
+ #else
+     GSVector4 ret;
+     ret.U64[0] = (F64[0] <= v.F64[0]) ? 0xFFFFFFFFFFFFFFFFULL : 0;
+-- 
+2.47.0
+
diff --git a/pkgs/by-name/du/duckstation-unofficial/package.nix b/pkgs/by-name/du/duckstation-unofficial/package.nix
new file mode 100644
index 0000000000000..0ca7e5a37b7fc
--- /dev/null
+++ b/pkgs/by-name/du/duckstation-unofficial/package.nix
@@ -0,0 +1,331 @@
+{
+  lib,
+  llvmPackages,
+  stdenvNoCC,
+  fetchFromGitHub,
+  cmake,
+  pkg-config,
+  ninja,
+  extra-cmake-modules,
+  wayland-scanner,
+  makeBinaryWrapper,
+  qt6,
+  sdl3,
+  zstd,
+  libwebp,
+  zlib,
+  libpng,
+  libjpeg,
+  freetype,
+  plutosvg,
+  cpuinfo,
+  soundtouch,
+  rapidjson,
+  cubeb,
+  libzip,
+  curl,
+  libX11,
+  wayland,
+  shaderc,
+  spirv-cross,
+  udev,
+  libbacktrace,
+  ffmpeg-headless,
+  fetchurl,
+  zip,
+  unzip,
+}:
+
+let
+  passthru = {
+    updateScript = ./update.sh;
+  };
+
+  meta = {
+    description = "Fast PlayStation 1 emulator for x86-64/AArch32/AArch64/RV64";
+    longDescription = ''
+      # DISCLAIMER
+      This is an **unofficial** package, do not report any issues to
+      duckstation developers. Instead, please report them to
+      <https://github.com/NixOS/nixpkgs> or use the officially
+      supported platform build at <https://duckstation.org> or other
+      upstream-approved distribution mechanism not listed here. We
+      (nixpkgs) do not endorse or condone any action taken on your own
+      accord in regards to this package.
+    '';
+    homepage = "https://duckstation.org";
+    license = lib.licenses.cc-by-nc-nd-40;
+    maintainers = with lib.maintainers; [ normalcea ];
+  };
+
+  pkgSources = lib.importJSON ./sources.json;
+
+  linuxDrv = llvmPackages.stdenv.mkDerivation (finalAttrs: {
+    pname = "duckstation-unofficial";
+    version = pkgSources.duckstation.version;
+
+    src = fetchFromGitHub {
+      owner = "stenzek";
+      repo = "duckstation";
+      tag = "v${finalAttrs.version}";
+      hash = pkgSources.duckstation.hash_linux;
+    };
+
+    patches = [
+      ./0001-remove-cubeb-vendor.patch
+      ./0002-fix-NEON-intrinsics.patch
+    ];
+
+    vendorDiscordRPC = llvmPackages.stdenv.mkDerivation {
+      pname = "discord-rpc-duckstation";
+      inherit (finalAttrs) version;
+      src = fetchFromGitHub {
+        owner = "stenzek";
+        repo = "discord-rpc";
+        rev = pkgSources.discord_rpc.rev;
+        hash = pkgSources.discord_rpc.hash;
+      };
+      nativeBuildInputs = [ cmake ];
+      buildInputs = [ rapidjson ];
+      meta = {
+        license = lib.licenses.mit;
+        platforms = lib.platforms.linux;
+      };
+    };
+
+    vendorShaderc = shaderc.overrideAttrs (oldAttrs: {
+      pname = "shaderc-duckstation";
+      inherit (finalAttrs) version;
+      src = fetchFromGitHub {
+        owner = "stenzek";
+        repo = "shaderc";
+        rev = pkgSources.shaderc.rev;
+        hash = pkgSources.shaderc.hash;
+      };
+
+      patches = (oldAttrs.patches or [ ]);
+      cmakeFlags = (oldAttrs.cmakeFlags or [ ]) ++ [
+        (lib.cmakeBool "SHADERC_SKIP_EXAMPLES" true)
+        (lib.cmakeBool "SHADERC_SKIP_TESTS" true)
+      ];
+      outputs = [
+        "out"
+        "lib"
+        "dev"
+      ];
+      postFixup = null;
+    });
+
+    soundtouch = llvmPackages.stdenv.mkDerivation {
+      inherit (soundtouch)
+        pname
+        version
+        src
+        meta
+        ;
+      nativeBuildInputs = [ cmake ];
+      postPatch = ''
+        substituteInPlace CMakeLists.txt \
+          --replace-fail "\''${prefix}/''${CMAKE_INSTALL_LIBDIR}" \
+                         "''${CMAKE_INSTALL_FULL_LIBDIR}"
+      '';
+
+      cmakeFlags = [
+        (lib.cmakeBool "SOUNDTOUCH_DLL" true)
+      ];
+    };
+
+    chtdb = stdenvNoCC.mkDerivation {
+      pname = "chtdb-duckstation";
+      version = "0-unstable-${pkgSources.chtdb.date}";
+
+      src = fetchFromGitHub {
+        owner = "duckstation";
+        repo = "chtdb";
+        rev = pkgSources.chtdb.rev;
+        hash = pkgSources.chtdb.hash;
+      };
+
+      nativeBuildInputs = [
+        zip
+      ];
+
+      buildPhase = ''
+        runHook preBuild
+
+        pushd cheats
+        zip -r cheats.zip *.cht
+        popd
+        pushd patches
+        zip -r patches.zip *.cht
+        popd
+
+        runHook postBuild
+      '';
+
+      installPhase = ''
+        runHook preInstall
+
+        install -Dm644 cheats/cheats.zip -t $out/lib/duckstation
+        install -Dm644 patches/patches.zip -t $out/lib/duckstation
+
+        install -Dm644 LICENSE -t $out/share/doc/duckstation
+        install -Dm644 README.md -t $out/share/doc/duckstation
+
+        runHook postInstall
+      '';
+
+      meta = {
+        description = "Collection of cheats and patches for PSX games";
+        longDescription = ''
+          Collection of cheats and patches for PSX games, primarily intended for
+          use with the DuckStation emulator, but can also be used by other
+          emulators that support GameShark codes.
+
+          Patches show in the UI in a separate section to cheats, and are
+          intended for modifications to the game that do not provide any
+          "advantage" to the player, including:
+
+          - Improving performance.
+          - Fixing game-breaking bugs.
+          - Unlocking the frame rate (e.g. "60 FPS patches").
+          - Widescreen rendering where the built-in widescreen rendering rendering is insufficient.
+        '';
+        license = lib.licenses.mit;
+        inherit (meta) maintainers;
+        platforms = lib.platforms.all;
+      };
+    };
+
+    preConfigure = ''
+      cp ${finalAttrs.chtdb}/lib/duckstation/cheats.zip data/resources
+      cp ${finalAttrs.chtdb}/lib/duckstation/patches.zip data/resources
+    '';
+
+    nativeBuildInputs = [
+      cmake
+      pkg-config
+      ninja
+      extra-cmake-modules
+      wayland-scanner
+      makeBinaryWrapper
+      qt6.wrapQtAppsHook
+      qt6.qttools
+    ];
+
+    buildInputs = [
+      sdl3
+      zstd
+      libwebp
+      zlib
+      libpng
+      libjpeg
+      freetype
+      plutosvg
+      cubeb
+      cpuinfo
+      libzip
+      curl
+      libX11
+      wayland
+      spirv-cross
+      qt6.qtbase
+      udev
+      libbacktrace
+      ffmpeg-headless
+    ]
+    ++ [
+      finalAttrs.vendorDiscordRPC
+      finalAttrs.vendorShaderc
+      finalAttrs.soundtouch
+    ];
+
+    cmakeFlags = [
+      (lib.cmakeBool "ALLOW_INSTALL" true)
+      (lib.cmakeFeature "CMAKE_INSTALL_PREFIX" "${placeholder "out"}/lib/duckstation")
+    ];
+
+    qtWrapperArgs = [
+      "--prefix LD_LIBRARY_PATH : ${(lib.makeLibraryPath [ ffmpeg-headless ])}"
+    ];
+
+    postInstall = ''
+      makeWrapper $out/lib/duckstation/duckstation-qt $out/bin/duckstation-qt
+
+      mkdir -p $out/share/applications
+      ln -s $out/lib/duckstation/resources/org.duckstation.DuckStation.desktop \
+            $out/share/applications
+
+      mkdir -p $out/share/icons/hicolor/512x512/apps
+      ln -s $out/lib/duckstation/resources/org.duckstation.DuckStation.png \
+            $out/share/icons/hicolor/512x512/apps
+
+      pushd ..
+      install -Dm644 LICENSE -t $out/share/doc/duckstation
+      install -Dm644 README.* -t $out/share/doc/duckstation
+      install -Dm644 CONTRIBUTORS.md -t $out/share/doc/duckstation
+      popd
+    '';
+
+    inherit passthru;
+
+    meta = {
+      inherit (meta)
+        description
+        longDescription
+        homepage
+        license
+        maintainers
+        ;
+      mainProgram = "duckstation-qt";
+      platforms = lib.platforms.linux;
+    };
+  });
+
+  darwinDrv = stdenvNoCC.mkDerivation (finalAttrs: {
+    pname = "duckstation-unofficial";
+    version = pkgSources.duckstation.version;
+
+    src = fetchurl {
+      url = "https://github.com/stenzek/duckstation/releases/download/v${finalAttrs.version}/duckstation-mac-release.zip";
+      hash = pkgSources.duckstation.hash_darwin;
+    };
+
+    nativeBuildInputs = [ unzip ];
+
+    dontPatch = true;
+    dontConfigure = true;
+    dontBuild = true;
+
+    sourceRoot = ".";
+
+    installPhase = ''
+      runHook preInstall
+
+      mkdir -p $out/Applications
+      cp -r DuckStation.app $out/Applications/DuckStation.app
+
+      runHook postInstall
+    '';
+
+    inherit passthru;
+
+    meta = {
+      inherit (meta)
+        description
+        longDescription
+        homepage
+        license
+        maintainers
+        ;
+      sourceProvenance = with lib.sourceTypes; [ binaryNativeCode ];
+      platforms = lib.platforms.darwin;
+    };
+  });
+in
+if stdenvNoCC.hostPlatform.isLinux then
+  linuxDrv
+else if stdenvNoCC.hostPlatform.isDarwin then
+  darwinDrv
+else
+  throw "No supported build."
diff --git a/pkgs/by-name/du/duckstation-unofficial/sources.json b/pkgs/by-name/du/duckstation-unofficial/sources.json
new file mode 100644
index 0000000000000..c51fbc82b0936
--- /dev/null
+++ b/pkgs/by-name/du/duckstation-unofficial/sources.json
@@ -0,0 +1,20 @@
+{
+  "duckstation": {
+    "version": "0.1-9483",
+    "hash_linux": "sha256-IKqbZUwm3qvGZKJCxq6t2a6Tc2IXGxZrFLbPE0ZpuMs=",
+    "hash_darwin": "sha256-68IfUDk9f8Aa/D/MJkWJ48PyMAY143Amx8s63xYeM5Q="
+  },
+  "discord_rpc": {
+    "rev": "cc59d26d1d628fbd6527aac0ac1d6301f4978b92",
+    "hash": "sha256-8xXcx5w36eiJqtWm6qQfhEHgchVJbhP/jR94eMNNjHU="
+  },
+  "shaderc": {
+    "rev": "4daf9d466ad00897f755163dd26f528d14e1db44",
+    "hash": "sha256-/o3LPYvMTlKhuvLQITnADmz8BTGXVaVR0aciOWVyFS8="
+  },
+  "chtdb": {
+    "date": "2025-09-07",
+    "rev": "b29f2919bbd63a2f52d7d3c1c7812fcf88d548d3",
+    "hash": "sha256-IRgbyiDjUcTZMV+uN/Tdgq4MdF4Uqy9qljAMAGuLG7A="
+  }
+}
diff --git a/pkgs/by-name/du/duckstation-unofficial/update.sh b/pkgs/by-name/du/duckstation-unofficial/update.sh
new file mode 100755
index 0000000000000..40ee733bea3b5
--- /dev/null
+++ b/pkgs/by-name/du/duckstation-unofficial/update.sh
@@ -0,0 +1,74 @@
+#!/usr/bin/env nix-shell
+#!nix-shell -i bash -p curl jq coreutils
+# shellcheck shell=bash
+
+set -euo pipefail
+location="$(dirname "${BASH_SOURCE[0]}")"
+
+echo "checking for new tagged release (github:stenzek/duckstation)..."
+old_version=$(nix --extra-experimental-features nix-command eval --raw -f . duckstation-unofficial.src.tag)
+new_version=$(curl -s "https://api.github.com/repos/stenzek/duckstation/tags?per_page=1" | jq -r '.[0].name')
+
+if [[ "$old_version" == "$new_version" ]]; then
+  echo "'duckstation-unofficial' is up-to-date ($old_version == $new_version)"
+  exit 0
+fi
+
+duckstation_linux_hash=$(nix --extra-experimental-features "nix-command flakes" flake prefetch github:stenzek/duckstation/"$new_version" --json | jq -r '.hash')
+duckstation_darwin_hash=$(nix-hash --to-sri --type sha256 "$(nix-prefetch-url --type sha256 "https://github.com/stenzek/duckstation/releases/download/${new_version}/duckstation-mac-release.zip")")
+
+
+echo "Vendor library update..."
+duckstation_storepath=$(nix flake prefetch github:stenzek/duckstation/"$new_version" --json | jq -r '.storePath')
+linux_file=$duckstation_storepath/scripts/deps/build-dependencies-linux.sh
+
+discord_rpc_rev=$(grep "DISCORD_RPC=" "$linux_file" | sed 's|.*=||g')
+discord_rpc_hash=$(nix --extra-experimental-features "nix-command flakes" \
+                       flake prefetch github:stenzek/discord-rpc/"$discord_rpc_rev" --json \
+                | jq -r '.hash')
+
+shaderc_rev=$(grep "SHADERC=" "$linux_file" | sed 's|.*=||g')
+shaderc_hash=$(nix --extra-experimental-features "nix-command flakes" flake prefetch github:stenzek/shaderc/"$shaderc_rev" --json | jq -r '.hash')
+
+chtdb_json=$(curl -s "https://api.github.com/repos/duckstation/chtdb/commits?per_page=1")
+chtdb_rev=$(echo "$chtdb_json" | jq -r '.[0].sha')
+chtdb_date=$(echo "$chtdb_json" | jq -r '.[0].commit.author.date')
+chtdb_hash=$(nix --extra-experimental-features "nix-command flakes" \
+                       flake prefetch github:duckstation/chtdb/"$chtdb_rev" --json \
+               | jq -r '.hash')
+
+echo "Regenerating '"$location"/sources.json'"
+JSON=$(
+    jq --null-input \
+        --arg new_version "${new_version:1}" \
+        --arg duckstation_linux_hash "$duckstation_linux_hash" \
+        --arg duckstation_darwin_hash "$duckstation_darwin_hash" \
+        --arg discord_rpc_rev "$discord_rpc_rev" \
+        --arg discord_rpc_hash "$discord_rpc_hash" \
+        --arg shaderc_rev "$shaderc_rev" \
+        --arg shaderc_hash "$shaderc_hash" \
+        --arg chtdb_rev "$chtdb_rev" \
+        --arg chtdb_date "${chtdb_date::10}" \
+        --arg chtdb_hash "$chtdb_hash" \
+        '{ "duckstation": {
+             "version": $new_version,
+             "hash_linux": $duckstation_linux_hash,
+             "hash_darwin": $duckstation_darwin_hash
+           },
+           "discord_rpc": {
+             "rev": $discord_rpc_rev,
+             "hash": $discord_rpc_hash
+           },
+           "shaderc": {
+             "rev": $shaderc_rev,
+             "hash": $shaderc_hash
+           },
+           "chtdb": {
+             "date": $chtdb_date,
+             "rev": $chtdb_rev,
+             "hash": $chtdb_hash
+           }
+        }'
+)
+
+echo "$JSON" | jq >"$location"/sources.json
diff --git a/pkgs/by-name/sp/spirv-cross/package.nix b/pkgs/by-name/sp/spirv-cross/package.nix
index 20b464dd5ea0e..4f721392245f6 100644
--- a/pkgs/by-name/sp/spirv-cross/package.nix
+++ b/pkgs/by-name/sp/spirv-cross/package.nix
@@ -22,6 +22,10 @@ stdenv.mkDerivation (finalAttrs: {
     python3
   ];
 
+  cmakeFlags = lib.optionals stdenv.hostPlatform.isLinux [
+    (lib.cmakeBool "SPIRV_CROSS_SHARED" true)
+  ];
+
   postFixup = ''
     substituteInPlace $out/lib/pkgconfig/*.pc \
       --replace '=''${prefix}//' '=/'