Doesn't seem to have received any updates in the last 2 years. I'm wondering what the use cases are for this type of scripting in embedded systems, though?
It's still receiving maintenance from contributors, but these sort projects reach a stable maturity and stay there for years fulfilling their use case.
And some projects just don't require much speed and benefit from a higher level lanuage. Reading a couple of sensors over I2C every few seconds, doing some "business logic" and serving data via a http server over wifi can be simpler to achieve in higher level language and the device will be idle for the most of the time anyway.
Micropython is a nice solution in that niche.
But for some projects you do want a lower level language if not for else maybe for lower battery consumption.
However, now that I look at the syntax, Berry Script doesn't really look like a well designed language to me. It's like a weird mix of Lua, Python and Javascript. It's a very backwards looking (as in, it is emulating the past rather than innovating) language, where a lot of the differences only exist for the sake of being different and the more I read through the docs the more I think it looks like a bastardized Python and that I'd rather use MicroPython instead.
This can already be done in C/cpp.