Now let's take a silly one
Knot 2#
Not sure if this will be upstreamed by Tangled the company but that's a possibility. I work at Tangled, that's the only disclaimer.
This is an alternate implementation of a Tangled knot server!
It has no database but git.
It aims to be small, fast, and modern.
Config variables are in example.toml, just make a config.toml from that and go ham.
Have fun!