feat: add nh

- Updated justfile to use nh for deploy commands
- Added nh to flake devShell
- Added nh and just to shell.nix
- Enabled programs.nh in nixos

flake.nix

@@ -90,6 +90,7 @@
               pkgs.git
               pkgs.git-crypt
               pkgs.just
+              pkgs.nh
             ];
           };
         }

hosts/nixos/modules/programs/default.nix

@@ -10,5 +10,6 @@
     ./ydotool.nix
     ./steam.nix
     ./nix-ld.nix
+    ./nh.nix
   ];
 }

hosts/nixos/modules/programs/nh.nix

@@ -0,0 +1,8 @@
+{
+  programs.nh = {
+    enable = true;
+    clean.enable = true;
+    clean.extraArgs = "--keep-since 7d --keep 3";
+    flake = "/home/toast/nix-config";
+  };
+}

justfile

@@ -3,19 +3,20 @@
 default:
   @just --list
 
-deploy-nixos:
-  sudo nixos-rebuild switch --flake .#$(hostname)
+_check-nh:
+  @command -v nh > /dev/null 2>&1 || echo "nh is not in PATH. Run 'nix develop' first."
 
-deploy-vps:
-  nixos-rebuild switch --flake .#vps --target-host root@vps
+deploy-nixos: _check-nh
+  nh os switch .
 
-deploy-home:
-  home-manager switch --flake .#$USER@$(hostname)
+deploy-vps: _check-nh
+  nh os switch . -H vps --target-host root@vps
+
+deploy-home: _check-nh
+  nh home switch .
 
 update:
   nix flake update --commit-lock-file
 
-gc:
-  nix-collect-garbage -d
-  nix-collect-garbage --delete-older-than 7d
-  nix-store --gc
+gc: _check-nh
+  nh clean all --keep-since 7d

shell.nix

@@ -7,5 +7,7 @@ pkgs.mkShell {
     git
     sops
     git-crypt
+    just
+    nh
   ];
 }