It is now possible to use BIPES with Arduino UNO, MEGA, NANO and Pro thanks to https://sneklang.org/. Thank you Keith for the great work on Snek.
If you want to try, just open the browser, go to:
https://bipes.net.br/snek-web-uploader/
Flash snek on your Arduino and use BIPES to program your Arduino using Snek blocks from BIPES.