[teleforce]

It a shame that the Lego Mindstorms (LM) has been discontinued and no longer available.

Is there anything equivalent to LM especially any open source alternatives?

[homarp]

maybe https://brickset.com/sets/45678-1 (SPIKE Prime Set)

as for "open source", https://projects.raspberrypi.org/en/projects/lego-robot-car/...