feat: deploy remotely via colmena(instead of nixos-rebuild)

lib/colmenaSystem.nix

@@ -0,0 +1,39 @@
+# colemena - Remote Deployment via SSH
+{
+  nixpkgs,
+  home-manager,
+  specialArgs,
+  nixos-modules,
+  home-module,
+  host_tags,
+}: let
+  username = specialArgs.username;
+in
+  { name, nodes, ... }: {
+    deployment = {
+      targetHost = name;  # hostName or IP address
+      targetUser = username;
+      tags = host_tags;
+    };
+
+    imports =
+      nixos-modules
+      ++ [
+        {
+          # make `nix run nixpkgs#nixpkgs` use the same nixpkgs as the one used by this flake.
+          nix.registry.nixpkgs.flake = nixpkgs;
+          # make `nix repl '<nixpkgs>'` use the same nixpkgs as the one used by this flake.
+          environment.etc."nix/inputs/nixpkgs".source = "${nixpkgs}";
+          nix.nixPath = ["/etc/nix/inputs"];
+        }
+
+        home-manager.nixosModules.home-manager
+        {
+          home-manager.useGlobalPkgs = true;
+          home-manager.useUserPackages = true;
+
+          home-manager.extraSpecialArgs = specialArgs;
+          home-manager.users."${username}" = home-module;
+        }
+      ];
+  }