We do - or better: we joined efforts with one who started, but it is all in very early stages.
The author of the current (once german only) SR6 Roll20 sheet switched to Foundry VTT lately and is eager to port his Roll20 code to Foundry - or write new one.
Our intention is to provide an german and english language files and character import from Genesis.
But: we basically just started and get used to write for Foundry, so it won't be ready within the next months. (Maybe we offer early snapshots to at least enable basic dice rolls, but that must be discussed internally)