Is there a proper way to configure self singned ssl certificates to work with hass docker install?

as the title says i want to know if i can assign my own self signed ssl certificate for hass

cant use lets encrypt because i cant validate the domain because port 80 is blocked by my isp
i am using noip.com dynamic dns service so cant change the nameservers either

A certificate is just a file, so upload it and point HA to it and it will use it.

The issue is not HA but the browser’s.
Those are the ones you have to battle with to accept the self signed certificate.

tried puting the files in the correct config files and ha on port 443 didnt work i generated the files with openssl