feat: nix tooling

.envrc

@@ -1 +1 @@
-use flake
+use flake . --builders ""

default.nix

@@ -0,0 +1,11 @@
+{buildGoModule}:
+buildGoModule {
+  pname = "sample-go";
+  version = "0.0.1";
+
+  src = ./.;
+
+  vendorHash = null;
+
+  ldflags = ["-s" "-w"];
+}

flake.lock

@@ -0,0 +1,26 @@
+{
+  "nodes": {
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1698331563,
+        "narHash": "sha256-arDwz/scx6iPEkxLV78hTL7U2M+BLH/zxgzPOLuyd6M=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "338a8633bc883122459c3f3daeb0a782d6e3bb56",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

@@ -0,0 +1,26 @@
+{
+  description = "Golang Project Template";
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs";
+  };
+
+  outputs = {
+    self,
+    nixpkgs,
+  }: let
+    systems = ["x86_64-linux" "aarch64-linux"];
+    forEachSystem = nixpkgs.lib.genAttrs systems;
+
+    pkgsForEach = nixpkgs.legacyPackages;
+  in rec {
+    packages = forEachSystem (system: {
+      default = pkgsForEach.${system}.callPackage ./default.nix {};
+    });
+
+    devShells = forEachSystem (system: {
+      default = pkgsForEach.${system}.callPackage ./shell.nix {};
+    });
+
+    hydraJobs = packages;
+  };
+}

shell.nix

@@ -0,0 +1,15 @@
+{
+  callPackage,
+  gopls,
+  go,
+}: let
+  mainPkg = callPackage ./default.nix {};
+in
+  mainPkg.overrideAttrs (oa: {
+    nativeBuildInputs =
+      [
+        gopls
+        go
+      ]
+      ++ (oa.nativeBuildInputs or []);
+  })