This is just the Nest, not Pijul. I'm responsible for that, and sorry about it. I said I'd fix it soon, at the moment I'm working on an app to fix (a small part of) France's electricity crisis. It's mostly done, but it took me a while to write something that would be able to scale to loads of users before the winter.
I'm just following Rustacean traditions of fixing things from the root.
When you have to write a web browser, you do have to fix C++ before you can actually start. I'm digging a bit deeper by avoiding blackouts so my French servers keep running (the Nest has two other locations), then I'll fix the server code.