If you want to use an IP address for TLS then you will need your own certificate authority (CA), import the CA certificate onto your android device, generate a certificate for the IP, and then configure firefly's nginx server to use the certificate.
An alternative option is to buy an actual domain, use a DNS provider from this list, configure certbot to use DNS-01 challenge for your domain, and configure nginx to use the certbot certificate. You will need a local DNS server to redirect your domain to the docker up so that nothing leaves your VPN.
>Firefly III
Thank you for your reply. Im afraid no logs that I can find in cPanel/Modified-WHM. (I have reseller hosting)
As to your last two questions I installed via the cPanel installer. https://www.softaculous.com/apps/others/Firefly_III
I was never prompted to run those commands and not sure I can without being logged as as root via ssh. Can you confirm I needed to do anything else after a softaculous install? I can create you a temp cPanel account if you'd like to replicate the issue.