better mirror upstream nixpkgs layout

1 files changed, 22 insertions, 0 deletions

diff --git a/nixos/modules/overlays.nix b/nixos/modules/overlays.nix
new file mode 100644
index 0000000..7820e96
--- /dev/null
+++ b/nixos/modules/overlays.nix
@@ -0,0 +1,22 @@
+{ config, lib, pkgs, ... }:
+with lib;
+
+let
+  cfg = config.eth.overlays;
+
+  mozilla = import (builtins.fetchTarball
+    "https://github.com/mozilla/nixpkgs-mozilla/archive/master.tar.gz");
+
+  eth = import ../../pkgs;
+
+in {
+  options.eth.overlays = {
+    eth     = mkEnableOption "Eth (yours truly)";
+    mozilla = mkEnableOption "Mozilla (Rust, Firefox, etc)";
+  };
+
+  config.nixpkgs.overlays = builtins.concatLists [
+    ( if cfg.eth     then [ eth     ] else [] )
+    ( if cfg.mozilla then [ mozilla ] else [] )
+  ];
+}