Bunch of us over at FreeCAD would really love if you could sponsor us with a server or 2. This way we can run a CI that creates nightly debug builds for testing regressions, bug fixes and new features. For example, we could theoretically create builds directly as a consequence from a contributor's Pull Requests, and essentially test the proposal on the spot. Just consider it is all we ask.
The FreeCAD community
PS Thank you for all that you do for humanity and for furthering Science. <hugs>