If you are talking about programming languages - it supports Golang, PHP, Java, Ruby and more. Mostly any frontend/backend languages (other than mobile development languages)

You can actually treat the Nimbus workspace as your laptop on cloud. If there's anything you see not supported on Nimbus at the moment, you can create a workspace, install as many packages as you need. And once you want to share the set up with the team, you can snapshot it and create a public (org-wide) template out of it.