"- dependency compilation is not parallelized - takes a lot of time and uses 10% of CPU" Dependencies are commonly in foreign programming languages, where the

"- dependency compilation is not parallelized - takes a lot of time and uses 10% of CPU" Dependencies are commonly in foreign programming languages, where the compiler might run things concurrently outside of BEAM control. It's not uncommon that Mix is configured by dependencies to just pull a binary for the local architecture from some repo instead. Perhaps that's what you ought to do in your CI and deploy flows, instead of compiling everything. "- a lot of knowledge is implicit (try checking if you can dynamically add children to a Supervisor)" What do you mean, "implicit"? It's in the docs: https://hexdocs.pm/elixir/DynamicSupervisor.html https://hexdocs.pm/elixir/DynamicSupervisor.html