ht booking app in loco

flake.nix

@@ -0,0 +1,58 @@
+{
+  description = "Development Nix flake for the tennis court booking app (Loco.rs)";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+    rust-overlay = {
+      url = "github:oxalica/rust-overlay";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+  };
+
+  outputs = { self, nixpkgs, rust-overlay, ... }:
+    let
+      systems = [
+        "x86_64-linux"
+        "aarch64-linux"
+        "x86_64-darwin"
+        "aarch64-darwin"
+      ];
+      forAllSystems = f: nixpkgs.lib.genAttrs systems f;
+    in
+    {
+      devShells = forAllSystems (system:
+        let
+          pkgs = import nixpkgs {
+            inherit system;
+            overlays = [ rust-overlay.overlays.default ];
+          };
+          rust = pkgs.rust-bin.stable.latest.default.override {
+            extensions = [ "rust-src" "rust-analyzer" "clippy" "rustfmt" ];
+          };
+        in
+        {
+          default = pkgs.mkShell {
+            buildInputs = [
+              rust
+              pkgs.pkg-config
+              pkgs.openssl
+              pkgs.sqlite
+              pkgs.cmake
+              pkgs.llvmPackages.clang
+              pkgs.llvmPackages.libclang.lib
+            ];
+            PKG_CONFIG_PATH = "${pkgs.openssl.dev}/lib/pkgconfig";
+            LIBCLANG_PATH = "${pkgs.llvmPackages.libclang.lib}/lib";
+            # Use clang for any BoringSSL / bindgen-driven compilation
+            shellHook = ''
+              export CC=clang
+              export CXX=clang++
+              echo "   Tennis court booking dev shell ready"
+              echo "   rust: $(rustc --version)"
+              echo "   tip:  cargo install loco-cli sea-orm-cli"
+            '';
+          };
+        }
+      );
+    };
+}