I hope this is poorly phrased or I am misunderstanding it, because it feels like it's implying that Matrix's terrible scaling issues will have their fixes paywalled. Even non-federated homeservers chew up RAM and CPU like candy when you get too many users.
It's heavier than any other protocol or chat program I know.
Most of that performance is nothing to do with whether workers are written in python or rust - see https://news.ycombinator.com/item?id=42752911. The hope is to fund maintenance for FOSS synapse, including core perf work, via Syn Pro stuff which makes the biggest impact for gigantic servers.
Arathorn|1 year ago