fix: move flake to root dir

flake.nix

@@ -0,0 +1,72 @@
+{
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
+    disko = {
+      url = "github:nix-community/disko";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+    agenix = {
+      url = "github:ryantm/agenix";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+    flake-utils = {
+      url = "github:numtide/flake-utils";
+    };
+    nixos-generators = {
+      url = "github:nix-community/nixos-generators";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+  };
+
+  outputs = { flake-utils,nixpkgs, nixos-generators, ... }: let
+    nodes = ["premhome-falcon-1" "premhome-falcon-2"];
+  in {
+    packages = builtins.listToAttrs(map (system: {
+      name=system;
+      value={
+        generate-iso = nixos-generators.nixosGenerate {
+          format = "iso";
+          system = "x86_64-linux";
+          modules = [
+            ./nixos/proxmox/iso.nix # base configuration of the image
+          ];
+        };
+      };
+      })
+      ["x86_64-linux" "aarch64-darwin"]) //
+      {
+        x86_64-linux = {
+        create-vm = let
+          pkgs = import nixpkgs { system = "x86_64-linux"; };
+          script-name = "create-vm";
+          src = builtins.readFile ./nixos/proxmox/create-vm.sh;
+          script = (pkgs.writeScriptBin script-name src).overrideAttrs(old: {
+            buildCommand = "${old.buildCommand}\n patchShebangs $out";
+          });
+          buildInputs = with pkgs; [ gum jq ];
+          in pkgs.symlinkJoin {
+            name = script-name;
+            paths = [ script ] ++ buildInputs;
+            nativeBuildInputs = with pkgs; [makeWrapper];
+            postBuild = "wrapProgram $out/bin/${script-name} --prefix PATH : $out/bin";
+
+          };
+
+        };
+      };
+
+  } // flake-utils.lib.eachDefaultSystem (system:
+    let pkgs = import nixpkgs {
+      inherit system;
+    }; in
+    {
+      devShells = {
+        default = pkgs.mkShell {
+        buildInputs = with pkgs; [
+          colmena
+          shellcheck
+        ];
+      };
+    };
+  });
+}