http://lpbitotptnhudy4llhyttmd2jynbuovpbyyz4nmt4zbozgtjr5pkomid.onion/privacy/my-tech-stack.html
I'm facing a huge challenge when replacing this hardware in say 10-15 years, when buying a battery or a heat pump focus is more on energy efficiency, price/value and less on software quality - just try to find security reviews on those things, there's a huge gap of information there.