The author mentions difficulties with HTTPS and trying stuff locally. I've had some success with mkcert [1,2] to easily create certificates trusted by browsers

The author mentions difficulties with HTTPS and trying stuff locally. I've had some success with mkcert [1,2] to easily create certificates trusted by browsers, I can suggest to look into this. You are your own root CA, I think it can work without an internet connection. [1] https://github.com/FiloSottile/mkcert/ https://github.com/FiloSottile/mkcert/ [2] https://news.ycombinator.com/item?id=33383095 https://news.ycombinator.com/item?id=33383095