diff --git a/.gitea/workflows/build.yaml b/.gitea/workflows/build.yaml
new file mode 100644
index 0000000..8bcd40e
--- /dev/null
+++ b/.gitea/workflows/build.yaml
@@ -0,0 +1,13 @@
+name: build
+on: [push]
+
+jobs:
+  build:
+    runs-on: nixos
+    steps:
+      - name: Check out repository code
+        uses: actions/checkout@v4
+      - name: build gyehoek
+        run: nix build -L .#gyehoek
+      - name: test gyehoek
+        run: nix develop -c cabal test
diff --git a/flake.nix b/flake.nix
index 939fda5..c617750 100644
--- a/flake.nix
+++ b/flake.nix
@@ -32,7 +32,6 @@
               buildInputs = with final; [
                 haskellPackages.cabal-fmt
                 self.packages.${final.stdenv.hostPlatform.system}.shake
-                final.haskellPackages.shelltestrunner
                 final.wabt
                 final.nodejs
                 final.wasmtime
@@ -66,11 +65,12 @@
       _pkgs = each-system ({ pkgs, ... }: pkgs);
       _hf = hf;
 
-      packages = each-system ({ pkgs, system, ... }:
-        hf.packages.${system} // {
-          default = hf.packages.${system}."gyehoek:exe:gyehoek";
+      packages = each-system ({ pkgs, lib, system, ... }:
+        hf.packages.${system} // lib.fix (packages: {
+          gyehoek = hf.packages.${system}."gyehoek:exe:gyehoek";
+          default = packages.gyehoek;
           shake = pkgs.callPackage ./shake-wrapper.nix {};
-        });
+        }));
 
       devShells = each-system
         ({ pkgs, system, ... }: hf.devShells.${system});