Does anyone have any advice on an ultralight 3-4 season tent option with a removable rainfly/tarp that can also work on a hammock?

I basically want to have my hammock AND a solid ground/no tree/bad weather/cold night option. It makes sense, to me, that the rainfly/tarp is the easiest place to save on weight when carrying (basically) two shelter options.

I thought about doing a bivy with my hammock tarp, but I'm scared of waking up to snakes or bugs.

So I've moved my search to tarptent options where the tarp could be used either for a hammock OR as a shell for a single person tent.