config system for DI container like in Symfony

Hello, I'm looking if there is an IoC solution for unity (or maybe a standalone # solution which can be integrated with any IoC container), which lets you have configs in separate yml/xml/etc files so you don't have to keep anything in the code itself, with merge/override hierarchy, and implementable precompile passes to resolve/manipulate those - like in php Symfony?

Specifically I'm interested in such pass for ecs - I'd like to have plain configs for systems, events and entity recipes instead of doing everything manually.