Ethereum Name Service provides a unified identity accross the web.
Grantr is a grant-program aggregator for web3 projects in need of funding.
Edgeserver is the fastest open-source webserver for static file hosting.
The Cassandra/Scylla library you didn't want but got anyways.
Zero dependency light-weight, blazing fast customizable logging library
A database of common keys to common things. Hopefully this helpfull for your next "art project"