chore(nix): add cargo-tauri

flake.nix

@@ -1,15 +1,27 @@
 {
   inputs = {
-    nixpkgs.url = "github:nixos/nixpkgs/nixpkgs-unstable";
+    # TODO: switch to nixpkgs-unstable when this commit is there
+    nixpkgs.url = "github:nixos/nixpkgs/69f3b4defe91949a97ca751ada931525d391e0fc";
     flake-parts.url = "github:hercules-ci/flake-parts";
   };
-  outputs = inputs@{ nixpkgs, flake-parts, ... }:
+  outputs =
+    inputs@{ nixpkgs, flake-parts, ... }:
     flake-parts.lib.mkFlake { inherit inputs; } {
       systems = nixpkgs.lib.platforms.all;
-      perSystem = { pkgs, ... }: {
-        devShells.default =
-          pkgs.mkShell { packages = [ pkgs.bun pkgs.nodejs ]; };
-        # TODO: Package LA using Nix
-      };
+      perSystem =
+        { pkgs, ... }:
+        let
+          cargo-tauri = pkgs.callPackage ./nix/cargo-tauri.nix { };
+        in
+        {
+          devShells.default = pkgs.mkShell {
+            packages = [
+              pkgs.bun
+              pkgs.nodejs
+              cargo-tauri
+            ];
+          };
+          # TODO: Package LA using Nix
+        };
     };
 }