I was thinking he could just get a few devs to copy where he worked at. He probably has enough domain expertise to do so and he could use the other app as a refence.

The company already severed ties with Rogowsky. His last hosting appearance was three weeks ago.

Or maybe even Jeopardy! itself, given the recent news about Trebek. Unlikely, but possible.

I think he could handle Jeopardy sure, but I'm not sure the venue gives his talent the place to truly shine. If he inserted the comedic portion of his talent then Jeopardy would kind of become a different show, while not doing so would lose the quality that make him such a compelling host.