Another company doing this (mentioned in the Verge article) was Thalmic Labs, a YC company from 2013, which was acquired by Google in 2020. I remember seeing their presentation at YC Demo Day and it was jaw-dropping stuff; one of the only demos I still remember, 12 years on.
It's sad to see they didn't make it as a commercial success, and is a grim reminder that brilliant innovation doesn't assure a successful outcome.
Thalmic then became North to make smart glasses and then got sold to Google
As it says in the article, the device seems to be more robust, and ready for the market soon. After having used ML to tune the decoding model on many participants contributing EMG data.
https://github.com/facebookresearch/emg2pose
https://github.com/facebookresearch/emg2qwerty
Infer what you will.
(I helped with their release and last month gave a presentation on the project's original research infrastructure, but I'm no longer on the team and I definitely never was allowed to talk about final products.)
Became iPhone FaceID.