Ask HN: Current state of hobby BCI devices

I'm very interested in tinkering with a BCI device, and see what I can achieve coupling it with some ML classifiers - I've been toying with the idea of trying to train it on simple commands (forward/backward, left/right) and try connecting it with simple video games as a PoC.

Since this is completely new to me I'd love to hear the opinion of people that are move involved in this space, specially on whether this would be feasible, and if yes, which device would be recommended.

I've looked at a few options and it seems like an OpenBCI headset is the best option at the moment, I was considering the "All-in-One EEG Electrode Cap" as it's less expensive.