First Commit

services/artemis-rgb/flake.nix

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+{
+  description = "Artemis RGB (Avalonia + SkiaSharp, NixOS compatible)";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-25.11";
+  };
+
+  outputs = { nixpkgs, ... }:
+  let
+    system = "x86_64-linux";
+
+    pkgs = import nixpkgs {
+      inherit system;
+      config.allowUnfree = true;
+    };
+
+    artemis = pkgs.stdenvNoCC.mkDerivation rec {
+      pname = "artemis-rgb";
+      version = "latest-master";
+
+      src = pkgs.fetchurl {
+        url = "https://updating.artemis-rgb.com/api/artifacts/latest/master/linux";
+        sha256 = "sha256-YzgkzfVZbxSesrVTZTvUXWm8K2TBA6pQbiN9ErDGzeA=";
+      };
+
+      nativeBuildInputs = [
+        pkgs.unzip
+        pkgs.makeWrapper
+      ];
+
+      buildInputs = [
+        # .NET runtime deps
+        pkgs.icu
+        pkgs.zlib
+        pkgs.openssl
+
+        # Skia / fonts
+        pkgs.fontconfig
+        pkgs.freetype
+
+        # X11 (required even on Wayland for Avalonia)
+        pkgs.xorg.libX11
+        pkgs.xorg.libXcursor
+        pkgs.xorg.libXrandr
+        pkgs.xorg.libXi
+        pkgs.xorg.libXinerama
+        pkgs.xorg.libxcb
+        pkgs.xorg.libICE
+        pkgs.xorg.libSM
+
+        # Graphics / display
+        pkgs.mesa
+        pkgs.wayland
+      ];
+
+      unpackPhase = ''
+        unzip $src
+      '';
+
+      installPhase = ''
+        mkdir -p $out/lib/artemis
+        cp -r ./* $out/lib/artemis
+        chmod +x $out/lib/artemis/Artemis.UI.Linux
+
+        mkdir -p $out/bin
+        makeWrapper $out/lib/artemis/Artemis.UI.Linux \
+          $out/bin/Artemis.UI.Linux \
+          --set LD_LIBRARY_PATH "${pkgs.lib.makeLibraryPath buildInputs}"
+
+        mkdir -p $out/share/applications
+        cat > $out/share/applications/artemis.desktop <<EOF
+[Desktop Entry]
+Name=Artemis
+Exec=Artemis.UI.Linux
+Icon=artemis
+Terminal=false
+Type=Application
+Categories=Utility;
+EOF
+
+        if [ -d $out/lib/artemis/Icons ]; then
+          mkdir -p $out/share/icons/hicolor
+          cp -r $out/lib/artemis/Icons/* $out/share/icons/hicolor/
+        fi
+      '';
+
+      meta = with pkgs.lib; {
+        description = "Artemis RGB lighting controller";
+        homepage = "https://artemis-rgb.com";
+        license = licenses.unfreeRedistributable;
+        platforms = [ "x86_64-linux" ];
+      };
+    };
+
+  in {
+    packages.${system}.default = artemis;
+  };
+}

services/openlinkhub/flake.nix

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+{
+  description = "NixOS flake for OpenLinkHub";
+
+  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-25.11";
+
+  outputs = { nixpkgs, ... }:
+  let
+    system = "x86_64-linux";
+
+    pkgs = import nixpkgs {
+      inherit system;
+    };
+
+    openlinkhubPkg = pkgs.buildGoModule rec {
+      pname = "openlinkhub";
+      version = "0.7.4";
+
+      src = pkgs.fetchFromGitHub {
+        owner = "jurkovic-nikola";
+        repo = "OpenLinkHub";
+        tag = version;
+        sha256 = "sha256-isUi3GDGmZ5BwOrLkxlPRzfZZyPlTZNhwq/dCKVfsXo=";
+      };
+
+      # REQUIRED for Go deps
+      vendorHash = "sha256-wLoDbaLfSP2VLbl5yzJSSA7cvsv5tXnfb5+jsy0BjGA=";
+
+      buildInputs = [
+        pkgs.udev
+      ];
+
+      subPackages = [ "." ];
+
+      postInstall = ''
+        # Udev rules (correct NixOS way)
+        mkdir -p $out/lib/udev/rules.d
+        cp 99-openlinkhub.rules $out/lib/udev/rules.d/
+      '';
+
+      meta = with pkgs.lib; {
+        description = "Open source interface for iCUE LINK Hub & Corsair devices";
+        homepage = "https://github.com/jurkovic-nikola/OpenLinkHub";
+        license = licenses.gpl3;
+        platforms = platforms.linux;
+      };
+    };
+
+    module = { config, lib, ... }: {
+      options.openlinkhub.enable =
+        lib.mkEnableOption "Enable OpenLinkHub service";
+
+      config = lib.mkIf config.openlinkhub.enable {
+
+        environment.systemPackages = [ openlinkhubPkg ];
+
+        users.groups.openlinkhub = {};
+        users.users.openlinkhub = {
+          isSystemUser = true;
+          group = "openlinkhub";
+          description = "OpenLinkHub service user";
+          home = "/var/lib/openlinkhub";
+          createHome = true;
+        };
+
+        services.udev.packages = [ openlinkhubPkg ];
+        systemd.services.openlinkhub = {
+          description = "OpenLinkHub service";
+          wantedBy = [ "multi-user.target" ];
+          after = [ "network.target" "udev.service" ];
+
+          # On first service start, populate working dir
+          preStart = ''
+            # Create working directory if missing
+            mkdir -p /var/lib/openlinkhub
+
+            cd /var/lib/openlinkhub
+
+            # Copy database if missing
+            if [ ! -d database ]; then
+              cp -r ${openlinkhubPkg.src}/database .
+            fi
+
+            rm -r static || true
+            # Copy static assets if missing
+            if [ ! -d static ]; then
+              cp -r ${openlinkhubPkg.src}/static .
+            fi
+
+            rm -r static || true
+            # Copy web UI if missing
+            if [ ! -d web ]; then
+              cp -r ${openlinkhubPkg.src}/web .
+            fi
+
+            rm -r api || true
+            # Copy api docs if missing
+            if [ ! -d api ]; then
+              cp -r ${openlinkhubPkg.src}/api .
+            fi
+
+            # Ensure ownership
+            chown -R openlinkhub:openlinkhub /var/lib/openlinkhub
+            chmod u+w /var/lib/openlinkhub -R
+          '';
+
+          serviceConfig = {
+            ExecStart = "${openlinkhubPkg}/bin/OpenLinkHub";
+
+            StateDirectory = "openlinkhub";
+            WorkingDirectory = "/var/lib/openlinkhub";
+
+            User = "openlinkhub";
+            Group = "openlinkhub";
+
+            Restart = "on-failure";
+
+            NoNewPrivileges = true;
+            PrivateTmp = true;
+            ProtectSystem = "strict";
+            ProtectHome = true;
+          };
+        };
+      };
+    };
+  in
+  {
+    packages.${system}.default = openlinkhubPkg;
+
+    nixosModules.default = module;
+    nixosModules.openlinkhub = module;
+  };
+}