diff --git a/.woodpecker/.build.yml b/.woodpecker/.build.yml
index 4cf18a4..47ad8ac 100644
--- a/.woodpecker/.build.yml
+++ b/.woodpecker/.build.yml
@@ -4,6 +4,7 @@ steps:
     commands:
       - echo 'experimental-features = flakes nix-command' >> /etc/nix/nix.conf
       # Lint
+      - "nix run .#fantomas -- --check ."
       - "nix develop --command bash -c 'dotnet tool restore && ./hooks/pre-push'"
       # Test
       - nix develop --command dotnet -- test
diff --git a/flake.nix b/flake.nix
index 5dbfe81..1ba1cff 100644
--- a/flake.nix
+++ b/flake.nix
@@ -14,7 +14,35 @@
   }:
     flake-utils.lib.eachDefaultSystem (system: let
       pkgs = nixpkgs.legacyPackages.${system};
+      projectFile = "./AnkiStatic/AnkiStatic.fsproj";
+      testProjectFile = "./AnkiStatic.Test/AnkiStatic.Test.fsproj";
+      pname = "gitea-repo-config";
+      dotnet-sdk = pkgs.dotnet-sdk_7;
+      dotnet-runtime = pkgs.dotnetCorePackages.runtime_7_0;
+      version = "0.1";
+      dotnetTool = toolName: toolVersion: sha256:
+        pkgs.stdenvNoCC.mkDerivation rec {
+          name = toolName;
+          version = toolVersion;
+          nativeBuildInputs = [pkgs.makeWrapper];
+          src = pkgs.fetchNuGet {
+            pname = name;
+            version = version;
+            sha256 = sha256;
+            installPhase = ''mkdir -p $out/bin && cp -r tools/net6.0/any/* $out/bin'';
+          };
+          installPhase = ''
+            runHook preInstall
+            mkdir -p "$out/lib"
+            cp -r ./bin/* "$out/lib"
+            makeWrapper "${dotnet-runtime}/bin/dotnet" "$out/bin/${name}" --add-flags "$out/lib/${name}.dll"
+            runHook postInstall
+          '';
+        };
     in {
+      packages = {
+        fantomas = dotnetTool "fantomas" (builtins.fromJSON (builtins.readFile ./.config/dotnet-tools.json)).tools.fantomas.version "sha256-83RodORaC3rkYfbFMHsYLEtl0+8+akZXcKoSJdgwuUo=";
+      };
       devShells.default = pkgs.mkShell {
         buildInputs =
           [pkgs.alejandra pkgs.dotnet-sdk_7 pkgs.python3]