Initial Commit for nix (#856)

* Initial Commit for nix

* Update description

* nix fmt

* update version

---------

Co-authored-by: anonymous <anonymous@anonymous.anonymous44>

shell.nix

@@ -0,0 +1,23 @@
+{
+  pkgs ? (
+    let
+      inherit (builtins) fetchTree fromJSON readFile;
+      inherit ((fromJSON (readFile ./flake.lock)).nodes) nixpkgs gomod2nix;
+    in
+      import (fetchTree nixpkgs.locked) {
+        overlays = [
+          (import "${fetchTree gomod2nix.locked}/overlay.nix")
+        ];
+      }
+  ),
+  mkGoEnv ? pkgs.mkGoEnv,
+  gomod2nix ? pkgs.gomod2nix,
+}: let
+  goEnv = mkGoEnv {pwd = ./.;};
+in
+  pkgs.mkShell {
+    packages = [
+      goEnv
+      gomod2nix
+    ];
+  }