218 current 1970-01-01 01:00:00 24.05.20240303.b8697e5 6.6.19 *

hosts/MaxNixosLaptop/configuration.nix

@@ -152,6 +152,14 @@
     randomizedDelaySec = "45min";
   };
 
+  nix.gc = {
+    automatic = true;
+    dates = "10:00";
+    randomizedDelaySec = "45min";
+    options = "--delete-older-than 14d";
+  };
+  nix.settings.auto-optimise-store = true;
+
   # This value determines the NixOS release from which the default
   # settings for stateful data, like file locations and database versions
   # on your system were taken. It‘s perfectly fine and recommended to leave

modules/nixos/rebuild.nix

@@ -1,12 +1,6 @@
 {pkgs, ...}: let
   # script for rebuilding nixos
-  rebuild = pkgs.writeTextFile {
-    name = "rebuild";
-    destination = "/bin/rebuild";
-    executable = true;
-    text = ''
-      #!${pkgs.bash}/bin/bash
-
+  rebuild = pkgs.writeShellScriptBin "rebuild" ''
     # A rebuild script that commits on a successful build
     set -e
 
@@ -24,6 +18,8 @@
 
     echo "NixOS Rebuilding..."
 
+    # echo using sudo so we get feedback after unlocking
+    sudo echo "Beginning rebuild"
     # Rebuild, output simplified errors, log trackebacks
     sudo nixos-rebuild switch &>nixos-switch.log || (${pkgs.coreutils}/bin/cat nixos-switch.log | ${pkgs.gnugrep}/bin/grep --color error && false)
 
@@ -39,7 +35,6 @@
     # Notify all OK!
     ${pkgs.libnotify}/bin/notify-send -e "NixOS Rebuilt OK!" --icon=software-update-available
   '';
-  };
 in {
   environment.systemPackages = [rebuild];
 }