Fix bugs

Signed-off-by: Nikolaos Karaolidis <nick@karaolidis.com>

hosts/common/system/configs/nix-cleanup/default.nix

@@ -1,4 +1,4 @@
-{ pkgs, ... }:
+{ config, pkgs, ... }:
 {
   environment.systemPackages = [
     (pkgs.writeShellApplication {
@@ -10,6 +10,7 @@
         btrfs-progs
         nix
       ];
+      runtimeEnv.DEVICE = config.environment.impermanence.device;
       text = builtins.readFile ./cleanup.sh;
     })
   ];