I fully understand that it’s not wthin the remit of this application to produce self-signed SSL certificates and assign them to localhost in IIS, but it would be a great feature to add… 
Hi, the easiest way to do this using the software as it is would be the run your own little CA using smallstep ca or hashicorp vault, these are tools that can start up a custom CA and issue certificates using the ACME protocol that the app speaks.
You can then store the CA root in the trust store of any clients that need to connect (e.g. private machines/devices on your network) and the certs will we trusted. You can also control things like the certificate lifetime.
Yeah, I was just being lazy really, wantng a one-button click to do it all for me!
1 Like