[sjellis]

> And let's not forget to be grateful towards for-profit companies that contribute to open source.

The main sponsor of WINE is CodeWeavers, who have been paying folks that work on WINE for a very long time, and are involved in Proton development:

https://www.codeweavers.com/

They sell a supported version of WINE for Linux, macOS and ChromeOS, as well as providing engineering services to clients like Valve.