How to do this for a catchall route?

[statusunknown418]

First of all this package is the most useful thing I've found in some time.

Well I'm trying to also use it for a route that looks something like this /join/[...workspace] this is the route definition until now:

    join: defineRoute("/join/[...workspace]", {
      params: z.object({
        "...workspace": z.array(z.string()),
      }),
    }),

problem is when trying to access it in RSC it throws an error saying

Error: Invalid route params for route "join": [
  {
    "code": "invalid_type",
    "expected": "object",
    "received": "array",
    "path": [],
    "message": "Expected object, received array"
  }
]

this is the page.tsx

import { routes } from "~/lib/navigation";

export default async function JoinWorkspacePage({
  params,
}: {
  params: {
    workspace: unknown;
  };
}) {
  const {
    "...workspace": [workspace, invitation],
  } = routes.join.$parseParams(params.workspace);

  return (
    <div>
      <h1>
         {workspace} via {invitation}
      </h1>
      <form>
        <button type="submit">Join</button>
      </form>
    </div>
  );
}

[statusunknown418]

UPDATE: found a fix, just to not declare the catchall route as [...route] but [route] and the keep the same logic to $parseParams makes it work ok