What a coincidence, I am working on deploying the https://nolongerevil.com/ on my 2nd Gen Nest Thermostat, my wife has bugging me for weeks to either fix it or buy a new one.

I am actually going to self-host and vibe code my own cloud service on Cloudflare.

nice, how do you plan to secure it?

how do you flash? do you need uart ?