OK in terms of scaling #Mastodon server infrastructure, this looks interesting:

"CIRA is proud to announce its official partnership with Mastodon Canada, mstdn.ca, to support its growth and community-building efforts. As thousands of Canadians flock to the platform, this unique partnership reflects CIRA’s mission to support Canadian internet communities built on the open web and powered by a .CA domain."

https://financialpost.com/globe-newswire/cira-teams-up-with-mastodon-canada-to-support-canadian-digital-communities