There's similar projects like QB64 and L-Basic. I have to wonder if keeping language variants alive will be of historic significance hundreds of years from now. Will anyone care about early computing to this extent?
See:
https://en.m.wikipedia.org/wiki/Category:BASIC_programming_l...
and
https://en.m.wikipedia.org/wiki/Category:BASIC_interpreters
Some will be obsolete, of course.