adding the final touches to a better nixos setup for TFC

system/configuration.nix

@@ -13,7 +13,24 @@
   nix = {
    extraOptions = "experimental-features = nix-command flakes";
    package = pkgs.nixFlakes; 
+   gc = {
+     automatic = true;
+     dates = "weekly";
+     options = "--delete-older-than 20d";
    };
+   settings = {
+     auto-optimise-store = true;
+   };
+  };
+
+  system.autoUpgrade = {
+    enable = true;
+    dates = "02:00";
+    allowReboot = true;
+    flake = "${config.users.users.chris.home}/conf";
+    flags = [ "--update-input" "nixpkgs" "--commit-lock-file" ];
+  };
+
 
   nixpkgs.config.allowUnFree = true;
 
@@ -74,6 +91,7 @@
   };
 
   environment.variables.AMD_VULKAN_ICD = lib.mkDefault "RADV";
+  environment.homeBinInPath = true;
 
   programs.fish.enable = true;
 
@@ -349,13 +367,6 @@
     };
   };
 
-  system.autoUpgrade = {
-    enable = true;
-    dates = "01:00";
-    allowReboot = false;
-  };
-
-
   # Open ports in the firewall.
   # networking.firewall.allowedTCPPorts = [ ... ];
   # networking.firewall.allowedUDPPorts = [ ... ];

system/hardware-configuration.nix

@@ -22,7 +22,7 @@
   fileSystems."/storage" =
     { device = "/dev/disk/by-label/STORAGE";
       fsType = "btrfs";
-      options = [ "subvol=@" "noatime" "nodiratime" "compress=zstd" ];
+      options = [ "noatime" "nodiratime" "compress=zstd" ];
     };
 
   fileSystems."/boot" =