Things that i consider when choosing fedi server software?
Why i picked akkoma?

This is a good question, so i will answer this.
1. Low resource usage even on big amount of users. Since the backend is designed to be lightweight & message oriented backend language (elixir/erlang), It makes the cost for both keeping it up and sustainable to be as good as it should be.
2. Lower requirements. Some software like misskey apparently has a flow that is quite excessive to me just to have one thing to work properly, which is reading and posting.
3. Easier maintenance on both code and the infra behind it. If you just check the source code, Some of the components are apparently very human readable and you can probably learn elixir here quite easily.

the biggest influence on this one will be on the frontend. Since the code is old, Some parts can be easily fixed, some features can be added here too.

to be frank, I pick akkoma out of everything else is because of how simple the entire system is, both on frontend and the backend itself.