Meanwhile, my employer decided to switch from a self made Linux platform (with it’s pitfalls due to the usual “it’s free, why should we put so much money into maintenance” reasoning) to Microslop. I and multiple other people warned them, again and again.

There is also input-leap, if a monitor is present.

On the server/remote side, x2go is also worth a mention.

Who’s your plutonium guy?

There is also Fitbook, in case you need more inspiration.