add nix package

flake.nix

@@ -24,15 +24,40 @@
           system:
           f rec {
             pkgs = nixpkgs.legacyPackages.${system};
+            selfPkgs = self.packages.${system};
             inherit system;
           }
         );
     in
     {
+      packages = forAllSystems (
+        { pkgs, selfPkgs, ... }:
+        {
+          servicepoint-binding-uniffi = pkgs.rustPlatform.buildRustPackage {
+            pname = "servicepoint-binding-uniffi";
+            version = "0.13.1";
+
+            src = ./.;
+            cargoDeps = pkgs.rustPlatform.importCargoLock { lockFile = ./Cargo.lock; };
+
+            nativeBuildInputs = with pkgs; [
+              pkg-config
+            ];
+
+            buildInputs = with pkgs; [
+              xe
+              xz
+            ];
+          };
+          default = selfPkgs.servicepoint-binding-uniffi;
+        }
+      );
+
       devShells = forAllSystems (
-        { pkgs, system }:
+        { pkgs, selfPkgs, ... }:
         {
           default = pkgs.mkShell {
+            inputsFrom = [ selfPkgs.default ];
             packages = with pkgs; [
               (pkgs.symlinkJoin {
                 name = "rust-toolchain";
@@ -46,9 +71,6 @@
                   cargo-tarpaulin
                 ];
               })
-              xe
-              xz
-              pkg-config
             ];
             RUST_SRC_PATH = "${pkgs.rust.packages.stable.rustPlatform.rustLibSrc}";
           };