Yes, I'm working on an Ubuntu release ASAP.
Yes, you can donate to support this work.
I frequently get asked to (fill in the blank) by someone who (can't/won't) compile CalculiX Extras on their own because (fill in the reason).

No, I won't make a youtube video. :)
Recall, this is research level software, incomplete wrt CCX capabilities, likely buggy, and certainly not fit for human consumption.

Thanks again for your interest and good luck. I do look forward to hearing from you!