NH and herdr

flake.lock

@@ -1,5 +1,23 @@
 {
   "nodes": {
+    "herdr": {
+      "inputs": {
+        "nixpkgs": "nixpkgs"
+      },
+      "locked": {
+        "lastModified": 1783165492,
+        "narHash": "sha256-xhaMqgcdK1xVBKg55r30xu80BlgLuQLUw//OKfG/swY=",
+        "owner": "ogulcancelik",
+        "repo": "herdr",
+        "rev": "c97e0986277e95144f79da3fce5b3fd443f3922f",
+        "type": "github"
+      },
+      "original": {
+        "owner": "ogulcancelik",
+        "repo": "herdr",
+        "type": "github"
+      }
+    },
     "home-manager": {
       "inputs": {
         "nixpkgs": [
@@ -22,6 +40,22 @@
       }
     },
     "nixpkgs": {
+      "locked": {
+        "lastModified": 1779357205,
+        "narHash": "sha256-cCO8aTqss5x9Ky8GWkpY0Hy5fyTZEbtifSUV8QjSzic=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "f83fc3c307e74bc5fd5adb7eb6b8b13ffd2a36e1",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs_2": {
       "locked": {
         "lastModified": 1782999065,
         "narHash": "sha256-68sbHaR2H5mXnLSjtAii1YESzudwgaiVIK5N1kC/As8=",
@@ -37,8 +71,9 @@
     },
     "root": {
       "inputs": {
+        "herdr": "herdr",
         "home-manager": "home-manager",
-        "nixpkgs": "nixpkgs"
+        "nixpkgs": "nixpkgs_2"
       }
     }
   },

flake.nix

@@ -7,9 +7,11 @@
       url = "github:nix-community/home-manager/release-26.05";
       inputs.nixpkgs.follows = "nixpkgs";
     };
+
+    herdr.url = "github:ogulcancelik/herdr";
   };
 
-  outputs = {self, home-manager, nixpkgs, ...}: {
+  outputs = {self, home-manager, nixpkgs, herdr, ...}: {
     nixosConfigurations.nixos = nixpkgs.lib.nixosSystem {
       system = "x86_64-linux";
       modules = [
@@ -21,6 +23,7 @@
             useUserPackages = true;
             users.ulve = import ./home.nix;
             backupFileExtension = "backup";
+            extraSpecialArgs = { inherit herdr; };
           };
         }
       ];

home.nix

@@ -1,4 +1,4 @@
-{config, pkgs, ...}:
+{config, pkgs, herdr, ...}:
 {
   imports = [ ./niri.nix ];
 
@@ -15,7 +15,7 @@
     shellAliases = {
       n = "nvim";
       rebuild = "sudo nixos-rebuild switch --flake ~/nixos-dotfiles";
-      upgrade = "nix flake update --flake ~/nixos-dotfiles && sudo nixos-rebuild switch --flake ~/nixos-dotfiles";
+      upgrade = "nix flake update --flake ~/nixos-dotfiles && { command -v nh > /dev/null 2>&1 && nh os switch ~/nixos-dotfiles || sudo nixos-rebuild switch --flake ~/nixos-dotfiles; }";
     };
   };
 
@@ -31,7 +31,7 @@
     shellAliases = {
       n = "nvim";
       rebuild = "sudo nixos-rebuild switch --flake ~/nixos-dotfiles";
-      upgrade = "nix flake update --flake ~/nixos-dotfiles && sudo nixos-rebuild switch --flake ~/nixos-dotfiles";
+      upgrade = "nix flake update --flake ~/nixos-dotfiles && { command -v nh &>/dev/null && nh os switch ~/nixos-dotfiles || sudo nixos-rebuild switch --flake ~/nixos-dotfiles; }";
       tree = "eza --tree --level=2";
       ls = "eza --icons --all --header --long --git";
     };
@@ -54,7 +54,11 @@
       bindkey "^[OB" down-line-or-beginning-search
 
       function gc() {
-        sudo nix-collect-garbage --delete-older-than "''${1:-14}d"
+        if command -v nh &>/dev/null; then
+          nh clean all --keep-since "''${1:-14}d"
+        else
+          sudo nix-collect-garbage --delete-older-than "''${1:-14}d"
+        fi
       }
 
       function mkenv() {
@@ -261,6 +265,7 @@
   # ── Packages ─────────────────────────────────────────────────────────────────
   home.packages = with pkgs; [
     # general
+    herdr.packages.${pkgs.system}.default  # wallpaper manager
     claude-code                  # ai coding assistant
     azure-cli                    # az cli
     git-credential-manager       # git credential helper (azure devops PAT)
@@ -270,6 +275,7 @@
     jq                           # json processor
     powershell                   # yes
     teams-for-linux              # teams
+    nh                           # nix helper
     unzip                        # compression
 
     # terminal