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