I woke up in the middle of the night thinking about performance improvements for Mastodon.
What matters first, for user experience and retention, is the speed of federation. New messages must flow from shard to shard as desired. The spice is new messages.
So I guess the trick is gonna be to figure out how to make pubsubwhatever webhooks fire in reasonable time.
Ceejbot's mastodon instance. This is an overprovisioned, personally-run instance running on AWS. I welcome friends to create accounts here. I intend to run it as long as people are using it.