How to create ssl certificates for a purely local system?

Configuration
1

Hey everyone,
so the new voice Assist requires https/ssl to work. Unfortunately, HA does not come with built-in support.

I tried creating my own certificates as described here Self-signed certificate for SSL/TLS - Home Assistant 中文网 but that seems to be outdated because it does not work with the Companion app.

I am running a purely local server, so I cannot supply an external url to register. I won’t be running any VPN etc. (especially since they don’t work with DS Lite).
So is there a way to get ssl to work for local systems that are only accessed via 192.168.x.x rather than via an actual dns address?

2

Which flavour?
You can import the self-signed certificate in Android so that it is accepted:

3

You realise that is not a home assistant page? Look at the domain you pointed to.

4

You realize that that is irrelevant. It used to work and it still does work, but it will not work with companion app.

5

I will try that next then. I am using Android, although my wife uses Apple, so not sure if that will also work there.