mealie VS nightscout-librelink-up

I think Mealie, Planka, and AgenDAV (backend)/Sabre (frontend) would allow you to do all those things self-hosted, albeit not all in one place.

I would definitetly recommend the Dexcom G7. As I come from the libre3 I have to say that the G7 overall feels more sophisticated, yet alone the overpatch they send with each sensor will help keeping the sensor on my arm. In the past the libre3 often just fell of during my swim training.

Further, libre3 is often just not supported by third party apps or pumps or other. They do not provide an official API, that might be helpful for tracking your clucose. Back in the days I used and contributed to https://github.com/timoschlueter/nightscout-librelink-up to periodically fetched my sensor data from librelink and stored it my nightscout, that runs on my server at my home. That helped a lot, but it was more than a hack.

I’m currently importing data from LibreLinkUp into Nightscout using this project: https://github.com/timoschlueter/nightscout-librelink-up

I have an uploader retrieve monitored results from my GCM device and import them to Nightscout: https://github.com/timoschlueter/nightscout-librelink-up

I Like your Idea of using a Webcam. If you are using libre Link Up I can recommend https://github.com/timoschlueter/nightscout-librelink-up

try this one : https://github.com/timoschlueter/nightscout-librelink-up