feat: build Go-based SearXNG-compatible search service

Implement an API-first Go rewrite with local engine adapters, upstream fallback, and Nix-based tooling so searches can run without matching the original UI while preserving response compatibility.

Made-with: Cursor

flake.nix

@@ -0,0 +1,28 @@
+{
+  description = "Gosearch - SearXNG rewrite in Go";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
+  };
+
+  outputs = { self, nixpkgs }:
+    let
+      systems = [ "x86_64-linux" "aarch64-linux" ];
+      forAllSystems = f: nixpkgs.lib.genAttrs systems (system: f system);
+    in {
+      devShells = forAllSystems (system:
+        let
+          pkgs = import nixpkgs { inherit system; };
+          go = pkgs.go_1_24;
+        in
+        {
+          default = pkgs.mkShell {
+            buildInputs = [
+              go
+              pkgs.curl
+            ];
+          };
+        });
+    };
+}
+