,

1 files changed, 5 insertions, 1 deletions

diff --git a/nixos/modules/system/nix/default.nix b/nixos/modules/system/nix/default.nix
index 8f33990..9cefbf5 100644
--- a/nixos/modules/system/nix/default.nix
+++ b/nixos/modules/system/nix/default.nix
@@ -1,16 +1,20 @@
 { config, pkgs, lib, inputs, ... }:
 
 {
+  # Nix itself: enable the flake + nix-command features this config relies on.
   nix.settings.experimental-features = [ "nix-command" "flakes" ];
   nixpkgs.config.allowUnfree = true;
 
+  # Automatic garbage collection — drop builds older than a week.
   nix.gc = {
     automatic = true;
     dates = "weekly";
     options = "--delete-older-than 7d";
   };
 
-  programs.nix-ld.enable = true;
+  # envfs is the modern replacement for nix-ld: it mounts a FUSE filesystem
+  # on /usr/bin and /bin that resolves shebangs (e.g. #!/usr/bin/env) to the
+  # executables on the caller's PATH. It supersedes programs.nix-ld entirely.
   services.envfs.enable = true;
   security.polkit.enable = true;