diff --git a/.buildkite/pipeline.yml b/.buildkite/pipeline.yml
new file mode 100644
index 0000000..15fc1ad
--- /dev/null
+++ b/.buildkite/pipeline.yml
@@ -0,0 +1,5 @@
+steps:
+  - name: "NixOS tests (unstable)"
+    command: "nix-build -I nixpkgs=https://github.com/NixOS/nixpkgs-channels/archive/nixpkgs-unstable.tar.gz -A sops-install-secrets.tests"
+  - name: "NixOS tests (20.03)"
+    command: "nix-build -I nixpkgs=https://github.com/NixOS/nixpkgs-channels/archive/nixpkgs-unstable.tar.gz -A sops-install-secrets.tests"
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index caf674a..fe0aa40 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -20,9 +20,13 @@ jobs:
     - name: Setup cachix
       uses: cachix/cachix-action@v6
       with:
-        name: ${{ matrix.cachixName }}
+        name: mic92
         signingKey: '${{ secrets.CACHIX_SIGNING_KEY }}'
     - name: Show nixpkgs version
       run: nix-instantiate --eval -E '(import <nixpkgs> {}).lib.version'
     - name: Build nix packages
       run: nix run nixpkgs.nix-build-uncached -c nix-build-uncached default.nix
+    - name: Add keys group (needed for go tests)
+      run: sudo groupadd keys
+    - name: Run go tests
+      run: nix-shell --run "sudo unshare --mount --fork go test ./pkgs/sops-install-secrets"
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..9d3e7f6
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2020 Jörg Thalheim
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/default.nix b/default.nix
index 188c403..ca7f6d7 100644
--- a/default.nix
+++ b/default.nix
@@ -1,6 +1,6 @@
 { pkgs ? import <nixpkgs> {} }: let
   vendorSha256 = "sha256-O0z+oEffOOZa/bn2gV9onLVbPBHsNDH2yq1CZPi8w58=";
-in {
+in rec {
   sops-init-gpg-key = pkgs.callPackage ./pkgs/sops-init-gpg-key {};
   sops-install-secrets = pkgs.callPackage ./pkgs/sops-install-secrets {
     inherit vendorSha256;
diff --git a/modules/sops/default.nix b/modules/sops/default.nix
index bfb44d3..f972866 100644
--- a/modules/sops/default.nix
+++ b/modules/sops/default.nix
@@ -5,7 +5,7 @@ with lib;
 let
   cfg = config.sops;
   users = config.users.users;
-  sops-install-secrets = pkgs.callPackage ../../pkgs/sops-install-secrets {};
+  sops-install-secrets = (pkgs.callPackage ../.. {}).sops-install-secrets;
   secretType = types.submodule ({ config, ... }: {
     options = {
       name = mkOption {
diff --git a/pkgs/sops-install-secrets/default.nix b/pkgs/sops-install-secrets/default.nix
index 0c0bfa6..bf7025f 100644
--- a/pkgs/sops-install-secrets/default.nix
+++ b/pkgs/sops-install-secrets/default.nix
@@ -1,4 +1,4 @@
-{ buildGoModule, path, pkgs, vendorSha256 }:
+{ stdenv, buildGoModule, path, pkgs, vendorSha256 }:
 buildGoModule {
   pname = "sops-install-secrets";
   version = "0.0.1";
diff --git a/pkgs/sops-install-secrets/nixos-test.nix b/pkgs/sops-install-secrets/nixos-test.nix
index 86d3654..b4ef967 100644
--- a/pkgs/sops-install-secrets/nixos-test.nix
+++ b/pkgs/sops-install-secrets/nixos-test.nix
@@ -1,6 +1,7 @@
 { makeTest ? import <nixpkgs/nixos/tests/make-test-python.nix>, pkgs ? import <nixpkgs> }:
 {
  ssh-keys = makeTest {
+  name = "sops-ssh-keys";
   nodes.server = { ... }: {
     imports = [ ../../modules/sops ];
     services.openssh.enable = true;
@@ -21,7 +22,8 @@
    inherit pkgs;
  };
 
- gpg-keys = makeTest {
+ pgp-keys = makeTest {
+   name = "sops-pgp-keys";
    nodes.server = { pkgs, lib, ... }: {
      imports = [ ../../modules/sops ];
       sops.gnupgHome = "/run/gpghome";