Yes, I agree. I'm working on a Rails project today and the container in development has some gems we only use for development and testing: byebug, pry, rspec, timecop, simplecov, factory_bot. They won't go into the production images. The instructions for developers are
docker-compose build
docker-compose run --rm api bundle
docker-compose up
One developer has a M1 Mac and he's using something called mutagen instead of docker. His docker-compose.yml is a little different and he's paying a performance penalty. His M1 is only 50% faster than my Intel from 2014 at running the test suite (50 seconds vs 75.) The difference is not noticeable when running only a few tests per time when working on a single feature.