I've been trying out the 0.2 version for Linux and loving it so far as a long time fan of MyPaint. I couldn't get the archive for 0.2a to work though, everything I've tried says it's an invalid archive. Most links to the documentation also don't seem to currently be valid, even the one here on itch. I had to go to a different website called WellObserve.
I was also wondering if there's anywhere to share brushes. I'd love to see what other users have come up with as well as share what I've come up with so far.