nixos/nix: use systemd-tmpfiles for inputs in $NIX_PATH

1 files changed, 13 insertions, 1 deletions

diff --git a/modules/nixos/defaults/nix.nix b/modules/nixos/defaults/nix.nix
index e55faf4..064b0d9 100644
--- a/modules/nixos/defaults/nix.nix
+++ b/modules/nixos/defaults/nix.nix
@@ -1,4 +1,4 @@
-{ lib, ... }:
+{ lib, inputs, ... }:
 {
   nix = {
     channel.enable = lib.mkDefault false;
@@ -9,4 +9,16 @@
   };
 
   nixpkgs.config.allowAliases = false;
+
+  # Link inputs for use in `$NIX_PATH`
+  systemd.tmpfiles.settings = {
+    nix-inputs = lib.mapAttrs' (
+      name: input:
+      lib.nameValuePair "/etc/nix/inputs/${name}" {
+        L = {
+          argument = input.outPath;
+        };
+      }
+    ) inputs;
+  };
 }