I don’t own smart glasses but I am more and more interested in getting Even Realities G1 glasses because Even Realities seem to be open-source-friendly:

• They have a Github with a demo app and very complete technical details on how to communicate with the glasses via BLE.

• AugmentOS, an open-source smartglass operating system, supports those glasses.

Smart Caption is one of the free applications that come with AugmentOS. It seems to work really well!