diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
new file mode 100644
index 0000000..d053c0f
--- /dev/null
+++ b/.github/workflows/tests.yml
@@ -0,0 +1,28 @@
+name: Test NixOS configuration
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+jobs:
+  tests:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4.1.1
+
+      - uses: cachix/install-nix-action@v25
+        with:
+          nix_path: nixpkgs=channel:nixos-23.11
+      
+      - name: build-backend
+        run: nix build -f ./packages/backend.nix
+      - name: build-putricide
+        run: nix build -f ./packages/putricide.nix
+      #- name: build-skademaskinen
+      #  run: nix shell nixpkgs#nixos-rebuild --command nixos-rebuild build-vm --flake .#Skademaskinen
+      #- name: build-laptop
+      #  run: nix shell nixpkgs#nixos-rebuild --command nixos-rebuild build-vm --flake .#laptop
+      #- name: build-desktop
+      #  run: nix shell nixpkgs#nixos-rebuild --command nixos-rebuild build-vm --flake .#desktop
diff --git a/packages/backend.nix b/packages/backend.nix
index 10c61fd..c4fdecc 100644
--- a/packages/backend.nix
+++ b/packages/backend.nix
@@ -1,4 +1,4 @@
-{pkgs,}:let
+{pkgs ? import <nixpkgs> {}, ...}:let
     py = (pkgs.python3.withPackages (pyPkgs: with pyPkgs; [
         requests
         python-nmap
diff --git a/packages/putricide.nix b/packages/putricide.nix
index 115bab6..19c17f8 100644
--- a/packages/putricide.nix
+++ b/packages/putricide.nix
@@ -1,4 +1,4 @@
-{pkgs,}: pkgs.maven.buildMavenPackage {
+{pkgs ? import <nixpkgs> {}, ...}: pkgs.maven.buildMavenPackage {
     name = "putricide";
     pname = "putricide";
     version = "3.38a";
@@ -22,4 +22,4 @@
         echo "${pkgs.jdk21}/bin/java -jar $out/share/Putricide/ppbot.jar \$@" > $out/bin/skademaskinen-putricide
         chmod +x $out/bin/skademaskinen-putricide
     '';
-}
\ No newline at end of file
+}