diff --git a/.gitignore b/.gitignore
index 5978127..9c47f86 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
 /.envrc.private
+.terraform.lock.hcl
diff --git a/flake.nix b/flake.nix
index 472cb57..f5acc91 100644
--- a/flake.nix
+++ b/flake.nix
@@ -28,6 +28,9 @@
             (pkgs.terraform.withPlugins (p: [
               p.netlify
               p.hcloud
+              p.null
+              p.external
+              p.local
             ]))
           ];
         };
diff --git a/terraform/targets/nixos-wiki.thalheim.io/terraform.tf b/terraform/targets/nixos-wiki.thalheim.io/terraform.tf
index 62532b5..c572770 100644
--- a/terraform/targets/nixos-wiki.thalheim.io/terraform.tf
+++ b/terraform/targets/nixos-wiki.thalheim.io/terraform.tf
@@ -10,7 +10,7 @@ terraform {
 }
 
 module "wiki" {
-  source = "${path.module}/../../modules/nixos-wiki.thalheim.io"
+  source = "../../modules/wiki"
   admin_ssh_keys = {
     mic92 = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIKbBp2dH2X3dcU1zh+xW3ZsdYROKpJd3n13ssOP092qE joerg@turingmachine"
   }
diff --git a/terraform/targets/staging.nixos-wiki.thalheim.io/terraform.tf b/terraform/targets/staging.nixos-wiki.thalheim.io/terraform.tf
index 8a15c73..930a249 100644
--- a/terraform/targets/staging.nixos-wiki.thalheim.io/terraform.tf
+++ b/terraform/targets/staging.nixos-wiki.thalheim.io/terraform.tf
@@ -10,7 +10,7 @@ terraform {
 }
 
 module "wiki" {
-  source = "${path.module}/../../modules/staging.nixos-wiki.thalheim.io"
+  source = "../../modules/wiki"
   admin_ssh_keys = {
     mic92 = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIKbBp2dH2X3dcU1zh+xW3ZsdYROKpJd3n13ssOP092qE joerg@turingmachine"
   }