I've been approached by a few people regarding FediDB and being able to get an export of data for various purposes, without having to tax the API by crawling all 40,000 servers.
I am planning an automated export of basic details (domain, software, version, users, mau) that will be updated bi-weekly, and available for download on https://fedidb.com
The data only contains nodeinfo info, and exists from other sources, I just want to make it easier to use.