I've seen cases where documentation is seriously lacking but this project is quite something.

Was reading the comments, was able to learn more. So I assume it provides a command line interface.

Question: Can it run binaries compiled for the platform/OS?

This has been a limitation since forever on ESP microcontrollers because they basically have the power of computers and yet the flashing limitation of calculators. Would be good to finally be able to launch arbitrary binaries without flashing. (I know there are tricks right now, just looking for a proper OS-approach).