Alternatively, what I do is to sign a wildcard cert for a subdomain plus *.subdomain valid for a couple years and putting the key and cert on my Nextcloud in an

Alternatively, what I do is to sign a wildcard cert for a subdomain plus *.subdomain valid for a couple years and putting the key and cert on my Nextcloud in an encrypted archive file, that way I always have access to a cert that I trust and can easily install on a local computer.