feat: nix&nixos flake

flake.nix

@@ -0,0 +1,60 @@
+{
+  description = "Node-Project Flake";
+
+  inputs = {
+    nixpkgs.url = "github:cachix/devenv-nixpkgs/rolling";
+    devenv.url = "github:cachix/devenv";
+    nix2container.url = "github:nlewo/nix2container";
+    nix2container.inputs.nixpkgs.follows = "nixpkgs";
+    mk-shell-bin.url = "github:rrbutani/nix-mk-shell-bin";
+  };
+
+  nixConfig = {
+    extra-trusted-public-keys = "devenv.cachix.org-1:w1cLUi8dv3hnoSPGAuibQv+f9TZLr6cv/Hm9XgU50cw=";
+    extra-substituters = "https://devenv.cachix.org";
+  };
+
+  outputs = inputs@{ flake-parts, ... }:
+    flake-parts.lib.mkFlake { inherit inputs; } {
+      imports = [
+        inputs.devenv.flakeModule
+      ];
+      systems = [ "x86_64-linux" "i686-linux" "x86_64-darwin" "aarch64-linux" "aarch64-darwin" ];
+      perSystem = { config, self', inputs', pkgs, system, ... }: {
+      packages.devenv-up = self'.devShells.default.config.procfileScript;
+
+        devenv.shells.default = {
+          name = "Node-Project";
+
+          # https://devenv.sh/guides/using-with-flake-parts/#import-a-devenv-module
+          imports = [
+          ];
+
+          # https://devenv.sh/reference/options/
+          packages = [ 
+            config.packages.default
+          ];
+
+          languages.javascript = {
+              enable = true;
+              bun = {
+                enable = true;
+                install.enable = true;
+              };
+              # PNPM If package needs PNPM but you should always try to use bun.
+              pnpm = {
+                enable = false;
+                install.enable = false;
+              };
+            };
+        };
+
+      };
+      flake = {
+        # The usual flake attributes can be defined here, including system-
+        # agnostic ones like nixosModule and system-enumerating ones, although
+        # those are more easily expressed in perSystem.
+
+      };
+    };
+}