For testing it's convenient to be able to destroy the context after each test and set it up before.

Hi, i think its possible to get the core (DI only) bundle size down by about 1000% with a little effort. This will certainly have to happen in the future, so it's better to address it now imo.

check out https://github.com/jmankopf/mani-injector and replace 'reflect-metadata' with @abraham/reflection. works great. (like 300 loc vs rxdi 40k lol).

jupyter lab has a light weight DI system with