For those who don’t know it, Syn (short for synonym) is a global Process Registry and Process Group manager for Erlang and Elixir that I’ve written a few years back. It has been around for some time now, and it has served me well on many occasions. Through the years, I’ve built up a series of considerations and ideas for improvement, and now the time has come to put all of these back into Syn.

Syn v2 has been rewritten from the grounds up, and I’d like to share the reasoning and the architectural choices behind this work. Since Syn is written in Erlang, the few portions of the code here below will show Erlang syntax. Don’t let that discourage you if you are an Elixir developer though, as the same principles apply.