diff --git a/flake.lock b/flake.lock
index c7d9de4..eb50710 100644
--- a/flake.lock
+++ b/flake.lock
@@ -190,22 +190,6 @@
       }
     },
     "flake-compat_3": {
-      "flake": false,
-      "locked": {
-        "lastModified": 1767039857,
-        "narHash": "sha256-vNpUSpF5Nuw8xvDLj2KCwwksIbjua2LZCqhV1LNRDns=",
-        "owner": "NixOS",
-        "repo": "flake-compat",
-        "rev": "5edf11c44bc78a0d334f6334cdaf7d60d732daab",
-        "type": "github"
-      },
-      "original": {
-        "owner": "NixOS",
-        "repo": "flake-compat",
-        "type": "github"
-      }
-    },
-    "flake-compat_4": {
       "locked": {
         "lastModified": 1733328505,
         "narHash": "sha256-NeCCThCEP3eCl2l/+27kNNK7QrwZB1IJCrXfrbv5oqU=",
@@ -237,24 +221,6 @@
         "type": "github"
       }
     },
-    "flake-parts_2": {
-      "inputs": {
-        "nixpkgs-lib": "nixpkgs-lib_2"
-      },
-      "locked": {
-        "lastModified": 1790898470,
-        "narHash": "sha256-zTwuwezD0w3hpga6a6P8emidzAZFyWqlNeRBlpWOOl8=",
-        "owner": "hercules-ci",
-        "repo": "flake-parts",
-        "rev": "024633cd702b10285db5cb19b40ad48d2399ba60",
-        "type": "github"
-      },
-      "original": {
-        "owner": "hercules-ci",
-        "repo": "flake-parts",
-        "type": "github"
-      }
-    },
     "flake-utils": {
       "inputs": {
         "systems": "systems"
@@ -332,31 +298,6 @@
         "type": "github"
       }
     },
-    "git-hooks_2": {
-      "inputs": {
-        "flake-compat": [
-          "nix-gaming",
-          "flake-compat"
-        ],
-        "nixpkgs": [
-          "nix-gaming",
-          "nixpkgs"
-        ]
-      },
-      "locked": {
-        "lastModified": 1790500375,
-        "narHash": "sha256-XN3sDtn8TU9hAc9xqZ+SqRB/HHm2wjxM6aSWYLJU+oo=",
-        "owner": "cachix",
-        "repo": "git-hooks.nix",
-        "rev": "a0e4241b51206fbcbf52fd322eb5f0cd80f153c4",
-        "type": "github"
-      },
-      "original": {
-        "owner": "cachix",
-        "repo": "git-hooks.nix",
-        "type": "github"
-      }
-    },
     "gitignore": {
       "inputs": {
         "nixpkgs": [
@@ -496,29 +437,6 @@
         "type": "github"
       }
     },
-    "nix-gaming": {
-      "inputs": {
-        "flake-compat": "flake-compat_3",
-        "flake-parts": "flake-parts_2",
-        "git-hooks": "git-hooks_2",
-        "nixpkgs": [
-          "nixpkgs"
-        ]
-      },
-      "locked": {
-        "lastModified": 1792469825,
-        "narHash": "sha256-yZzRSNogTrbYjLNHiRMphZGIVcTHbXWSID37oPBbrEw=",
-        "owner": "fufexan",
-        "repo": "nix-gaming",
-        "rev": "0405c59de63e8b74d11dcc420f65ead938ea6ec6",
-        "type": "github"
-      },
-      "original": {
-        "owner": "fufexan",
-        "repo": "nix-gaming",
-        "type": "github"
-      }
-    },
     "nixpkgs": {
       "locked": {
         "lastModified": 1770073757,
@@ -582,21 +500,6 @@
         "type": "github"
       }
     },
-    "nixpkgs-lib_2": {
-      "locked": {
-        "lastModified": 1790477367,
-        "narHash": "sha256-oujbxmVKDhci2E4EM3KyAbRUgp5/IsCoiA/LfEF7OOk=",
-        "owner": "nix-community",
-        "repo": "nixpkgs.lib",
-        "rev": "f7cd230690d9fc982d06129f9189b101fddcfa3b",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nix-community",
-        "repo": "nixpkgs.lib",
-        "type": "github"
-      }
-    },
     "nixpkgs-wine": {
       "locked": {
         "lastModified": 1735834308,
@@ -615,7 +518,7 @@
     },
     "nixpkgs-xr": {
       "inputs": {
-        "flake-compat": "flake-compat_4",
+        "flake-compat": "flake-compat_3",
         "flake-utils": "flake-utils_2",
         "nixpkgs": [
           "nixpkgs"
@@ -796,7 +699,6 @@
         "millennium": "millennium",
         "nix-darwin": "nix-darwin",
         "nix-flatpak": "nix-flatpak",
-        "nix-gaming": "nix-gaming",
         "nixpkgs": "nixpkgs_4",
         "nixpkgs-xr": "nixpkgs-xr",
         "pi": "pi",
diff --git a/flake.nix b/flake.nix
index 956249d..2397a7f 100644
--- a/flake.nix
+++ b/flake.nix
@@ -26,11 +26,6 @@
       inputs.nixpkgs.follows = "nixpkgs";
     };
 
-    nix-gaming = {
-      url = "github:fufexan/nix-gaming";
-      inputs.nixpkgs.follows = "nixpkgs";
-    };
-
     nixpkgs-xr = {
       url = "github:nix-community/nixpkgs-xr";
       inputs.nixpkgs.follows = "nixpkgs";
@@ -104,8 +99,56 @@
       trusted-users-configuration = { nix, config, ... }: {
         nix.settings.trusted-users = [ config.users.users.frank.name ];
       };
+
+      systems = [
+        "x86_64-linux"
+        "aarch64-darwin"
+      ];
+
+      forAllSystems = nixpkgs.lib.genAttrs systems;
+
+      packagesFor =
+        system:
+        let
+          pkgs = nixpkgs.legacyPackages.${system};
+        in
+        nixpkgs.lib.optionalAttrs pkgs.stdenv.hostPlatform.isLinux {
+          heidisql = pkgs.callPackage ./packages/heidisql/package.nix { };
+          aseprite-thumbnailer-kde = pkgs.callPackage ./packages/aseprite-thumbnailer-kde/package.nix { };
+        };
+
+      formatterFor =
+        system:
+        let
+          pkgs = nixpkgs.legacyPackages.${system};
+        in
+        pkgs.writeShellApplication {
+          name = "nixfmt";
+          runtimeInputs = [ pkgs.nixfmt ];
+          text = ''
+            flags=()
+            paths=()
+            for arg in "$@"; do
+              case "$arg" in
+                -*) flags+=("$arg") ;;
+                *) paths+=("$arg") ;;
+              esac
+            done
+            if [ "''${#paths[@]}" -eq 0 ]; then
+              if git rev-parse --is-inside-work-tree >/dev/null 2>&1; then
+                mapfile -t paths < <(git ls-files '*.nix')
+              else
+                mapfile -t paths < <(find . -name '*.nix' -not -path './.devenv/*')
+              fi
+            fi
+            nixfmt "''${flags[@]}" "''${paths[@]}"
+          '';
+        };
     in
     {
+      packages = forAllSystems packagesFor;
+
+      formatter = forAllSystems formatterFor;
       nixosConfigurations = {
         nero = nixpkgs.lib.nixosSystem {
           specialArgs = { inherit inputs; };