Video Calls
Notes about video calling software.
Jitsi
Video conferencing with Jitsi [LWN] 24 Mar 2020.
Official docker-compose configuration at https://github.com/jitsi/docker-jitsi-meet seems the easiest to setup & use.
Zoom
Move Fast & Roll Your Own Crypto: A Quick Look at the Confidentiality of Zoom Meetings: Zoom's security is not suitable for secure anything.