Not on Firefox, some site functionality is disabled: https://medium.com/@leonardodna/the-ultimate-newbie-guide-for-self-signed-certificates-d81aa3b9987b

I know what you mean but using real self-signed certificates (i.e. no CA at all) with modern browsers causes so many issues I find them unusable.

I’ll mention this as no one has yet but you can be your own CA. Tools like mkcert make it easy

https://github.com/FiloSottile/mkcert

This is potentially more hassle (than using public DNS) as you have to get your CA certs onto every device. However it may be suitable depending on the situation.

It’s a bit like using directories/folders to organise your work - you don’t have to have separate projects in separate folders but it really helps the more projects you have going on. Also once you have two Python projects that require different versions of the same dependency things will get messy.

Are you using a virtual env to isolate the environment of the game from the rest ofyour system? There are a few ways/tools to do it but maybe start here:

https://docs.python.org/3/library/venv.html