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Comment by alex1115alex | Hacker News Reader

It's all open-source:

https://github.com/Mentra-Community/MentraOS

Not really, despite the repo being named MentraOS, this repo seems to include only some mobile apps (that either run on a phone or on the glasses), some server code, and some SDKs. Mentra glasses are likely running on a fork of AOSP, which is not in this repo.

AOSP (or even a minimal fork) is way too heavy to be running on the glasses. It looks like the firmware is quite minimal and the "OS" is the app.

https://github.com/Mentra-Community/MentraOS/tree/main/mcu_c...

Mentra Live runs AOSP similar to the other AI glasses on the market (Ray-Ban, Xiaomi AI Glasses, RayNeo V3 AI Glasses, etc). It's heavy, but allows us to ship fast. You'll find this code in `asg_client` folder.

We're also working on a pair of HUD glasses that will release in 2026 using an NRF5340 MCU. The code for this is being developed in the `mcu_client` folder.

Very interesting. Thanks for the correction/info!

Please have an option for local processing. I would love to be able to use my locally running Gemma 3n model on my phone for low latency and for them to work without internet connectivity.

We're going to be putting out a Mentra Edge SDK in the next few months, but it comes with some downsides. Using your phone as a compute device is a battery hog, and you can only connect one app to the glasses at a time.

Most smart glasses just run AOSP, that's the path of least resistance. Ones without displays are often just Bluetooth headsets in shape of eyeglasses, and only the ones with cameras but not displays are the ones that run a lightweight OS.

>> AOSP (or even a minimal fork) is way too heavy to be running on the glasses

> Meta Horizon OS, previously known informally as Meta Quest Platform or Meta Quest OS, is an Android-based extended reality operating system for the Meta Quest line of devices released by Meta Platforms.

https://en.wikipedia.org/wiki/Meta_Horizon_OS

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