build: nix flake for go_1_24 buildGo124Module

flake.nix

@@ -0,0 +1,22 @@
+{
+  description = "posts - posts-as-primitive control plane for scobleclaw";
+  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-25.11";
+
+  outputs = { self, nixpkgs }:
+    let
+      system = "x86_64-linux";
+      pkgs = import nixpkgs { inherit system; };
+    in {
+      packages.${system}.default = pkgs.buildGo124Module {
+        pname = "posts";
+        version = "0.0.1";
+        src = ./.;
+        vendorHash = null;
+        subPackages = [ "." ];
+      };
+
+      devShells.${system}.default = pkgs.mkShell {
+        packages = [ pkgs.go_1_24 pkgs.gnumake ];
+      };
+    };
+}