What nerd terms should one know while on lemmy?

Things we see all the time, but no one can really describe, like

Docker

Federated

Self host

Fork

Container

Instance

Flatpak

Tailscale

Distro

Wayland

Nginx

Etc.

Sure we can search but the terms are just so abstract I can't understand some of it.

*this is for helping some new users as well as myself -