diff --git a/.drone.jsonnet b/.drone.jsonnet
new file mode 100644
index 0000000..cf32570
--- /dev/null
+++ b/.drone.jsonnet
@@ -0,0 +1,40 @@
+local Pipeline(channel) = {
+  kind: "pipeline",
+  type: "docker",
+  name: channel,
+  environment: {
+    NUR_REPO: "xeals",
+    // NIX_PATH: "nixpkgs=channel:" + channel,
+    CACHIX_CACHE: "xeals",
+    CACHIX_SIGNING_KEY: { from_secret: "cachix_key" },
+  },
+  steps: [
+    {
+      name: "build",
+      image: "nixos/nix",
+      commands: [
+        "nix-channel --add https://nixos.org/channels/" + channel + " nixos",
+        "nix-channel --update",
+        "nix-build ci.nix -A buildOutputs",
+        "nix eval -f default.nix 'lib'",
+        "nix eval -f default.nix 'modules'",
+        "nix eval -f default.nix 'overlays'"
+      ]
+    },
+    {
+      name: "deploy",
+      image: "nixpkgs/cachix",
+      commands: [
+        'nix-build ci.nix -A cacheOutputs | cachix push "${CACHIX_CACHE}"'//,
+        // 'if [[ "cron" != "${DRONE_BUILD_EVENT}" && -z "${DRONE_PULL_REQUEST}" && "master" = "${DRONE_BRANCH}" ]]; then
+        //   curl -XPOST "https://nur-update.herokuapp.com/update?repo=${NUR_REPO}"; fi'
+      ]
+    }
+  ]
+};
+
+[
+  Pipeline("nixpkgs-unstable"),
+  Pipeline("nixos-unstable"),
+  Pipeline("nixos-20.03"),
+]
diff --git a/.drone.yml b/.drone.yml
new file mode 100644
index 0000000..e44bac9
--- /dev/null
+++ b/.drone.yml
@@ -0,0 +1,76 @@
+---
+kind: pipeline
+type: docker
+name: nixpkgs-unstable
+
+platform:
+  os: linux
+  arch: amd64
+
+steps:
+- name: build
+  image: nixos/nix
+  commands:
+  - nix-channel --add https://nixos.org/channels/nixpkgs-unstable nixos
+  - nix-channel --update
+  - nix-build ci.nix -A buildOutputs
+  - nix eval -f default.nix 'lib'
+  - nix eval -f default.nix 'modules'
+  - nix eval -f default.nix 'overlays'
+
+- name: deploy
+  image: nixpkgs/cachix
+  commands:
+  - nix-build ci.nix -A cacheOutputs | cachix push "${CACHIX_CACHE}"
+
+---
+kind: pipeline
+type: docker
+name: nixos-unstable
+
+platform:
+  os: linux
+  arch: amd64
+
+steps:
+- name: build
+  image: nixos/nix
+  commands:
+  - nix-channel --add https://nixos.org/channels/nixos-unstable nixos
+  - nix-channel --update
+  - nix-build ci.nix -A buildOutputs
+  - nix eval -f default.nix 'lib'
+  - nix eval -f default.nix 'modules'
+  - nix eval -f default.nix 'overlays'
+
+- name: deploy
+  image: nixpkgs/cachix
+  commands:
+  - nix-build ci.nix -A cacheOutputs | cachix push "${CACHIX_CACHE}"
+
+---
+kind: pipeline
+type: docker
+name: nixos-20.03
+
+platform:
+  os: linux
+  arch: amd64
+
+steps:
+- name: build
+  image: nixos/nix
+  commands:
+  - nix-channel --add https://nixos.org/channels/nixos-20.03 nixos
+  - nix-channel --update
+  - nix-build ci.nix -A buildOutputs
+  - nix eval -f default.nix 'lib'
+  - nix eval -f default.nix 'modules'
+  - nix eval -f default.nix 'overlays'
+
+- name: deploy
+  image: nixpkgs/cachix
+  commands:
+  - nix-build ci.nix -A cacheOutputs | cachix push "${CACHIX_CACHE}"
+
+...
diff --git a/.envrc b/.envrc
new file mode 100644
index 0000000..051d09d
--- /dev/null
+++ b/.envrc
@@ -0,0 +1 @@
+eval "$(lorri direnv)"
diff --git a/default.nix b/default.nix
index 46c4090..81b6b7a 100644
--- a/default.nix
+++ b/default.nix
@@ -14,8 +14,5 @@
   modules = import ./modules; # NixOS modules
   overlays = import ./overlays; # nixpkgs overlays
 
-  example-package = pkgs.callPackage ./pkgs/example-package { };
-  # some-qt5-package = pkgs.libsForQt5.callPackage ./pkgs/some-qt5-package { };
-  # ...
-}
 
+}
diff --git a/pkgs/example-package/default.nix b/pkgs/example-package/default.nix
deleted file mode 100644
index 2533adf..0000000
--- a/pkgs/example-package/default.nix
+++ /dev/null
@@ -1,10 +0,0 @@
-{ stdenv }:
-
-stdenv.mkDerivation rec {
-  name = "example-package-${version}";
-  version = "1.0";
-  src = ./.;
-  buildPhase = "echo echo Hello World > example";
-  installPhase = "install -Dm755 example $out";
-}
-
diff --git a/shell.nix b/shell.nix
new file mode 100644
index 0000000..1599ca6
--- /dev/null
+++ b/shell.nix
@@ -0,0 +1,7 @@
+{ pkgs ? import <nixpkgs> {} }:
+
+pkgs.mkShell {
+  buildInputs = [
+    pkgs.jsonnet pkgs.drone-cli
+  ];
+}