diff --git a/config/common/default.nix b/config/common/default.nix
index 0acc154f..34a36924 100644
--- a/config/common/default.nix
+++ b/config/common/default.nix
@@ -6,6 +6,13 @@ let
 in {
   imports = [ ../../modules ../users (sources.home-manager + "/nixos") ];
 
+  nix.nixPath = [
+    "nixpkgs=/nix/var/nix/profiles/per-user/root/channels/nixos"
+    "nixpkgs-unstable=${sources.nixpkgs-unstable}"
+    "nixpkgs-mozilla=${sources.nixpkgs-mozilla}"
+    "arc=${sources.arc-nixexprs}"
+  ];
+
   #boot.kernelPackages = lib.mkDefault pkgs.linuxPackages_latest;
   #boot.kernelParams = [ "quiet" ];
 
diff --git a/config/hosts/athame/gitea.nix b/config/hosts/athame/gitea.nix
index 795a119b..f72dc462 100644
--- a/config/hosts/athame/gitea.nix
+++ b/config/hosts/athame/gitea.nix
@@ -3,7 +3,7 @@
 {
   services.gitea = {
     enable = true;
-    disableRegistration = true; # TODO change for initial setup
+    disableRegistration = true;
     domain = "git.kittywit.ch";
     rootUrl = "https://git.kittywit.ch";
   };
diff --git a/nix/sources.json b/nix/sources.json
index b3423e3c..f6c533d3 100644
--- a/nix/sources.json
+++ b/nix/sources.json
@@ -68,6 +68,18 @@
         "url": "https://github.com/nixos/nixpkgs/archive/cacb9ac7a5157363a91a1dfb31607024db3bb717.tar.gz",
         "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
     },
+    "nixpkgs-mozilla": {
+        "branch": "master",
+        "description": "mozilla related nixpkgs (extends nixos/nixpkgs repo)",
+        "homepage": "",
+        "owner": "mozilla",
+        "repo": "nixpkgs-mozilla",
+        "rev": "8c007b60731c07dd7a052cce508de3bb1ae849b4",
+        "sha256": "1zybp62zz0h077zm2zmqs2wcg3whg6jqaah9hcl1gv4x8af4zhs6",
+        "type": "tarball",
+        "url": "https://github.com/mozilla/nixpkgs-mozilla/archive/8c007b60731c07dd7a052cce508de3bb1ae849b4.tar.gz",
+        "url_template": "https://github.com/<owner>/<repo>/archive/<rev>.tar.gz"
+    },
     "nixpkgs-unstable": {
         "branch": "nixos-unstable-small",
         "description": "Nix Packages collection",