MentraOS – open-source Smart glasses OS

Is anybody making smart glasses that are just a display? For me, the rest of the feature set verges on being anti-features. I'd much rather a very rudimentary display that my phone or another device could send relatively low bandwidth data to over bluetooth or some other protocol and build from there.

Having a camera or a mic on the glasses themselves seems like something I'd mostly want to avoid for privacy, and having a speaker just seems like gilding the lily when we already have a variety of headphones to choose from.

Not to toot my own horn, but I've been fiddling with a now-discontinued, very cheap pair of display smart glasses: https://news.ycombinator.com/item?id=45087803

You can send low-resolution images to them via Bluetooth. I just figured out how to read button presses. There are speakers and a mic, but I haven't figured out how to use them yet (they don't show up as regular audio devices on Linux).

You'd need to write custom stuff to generate the images, but with a little imagemagick scripting I've had some pretty usable results.