I want to learn stenography, but haven't really got to buying a keyboard designed for it. I also want to host an EteSync server, but the HTTPS thing has been a bit of a headache for me and I've mostly just left it sitting there.
There are alternatives if you want to host your calendar and contacts and sync them securely. You could use Radicale and put a reverse proxy in front of it (Nginx Proxy Manager makes it easy to set up and easy to get and renew certificates).