Using your forks of certain packages with composer is actually pretty easy:
Add the repo of the fork to the repositories block of your composer.json, you might need to change the version to f.e dev-master and thats it. Great. Actually.
But there are some traps, especially when you are mentally already weekend bound:
When working in a team, take care that you dont add your fork as a private repo.
This happens when you use the @ notation like ‘firstname.lastname@example.org‘. Its tempting because it will be the clone url on github when you are logged in, which is very likely.
If you do so your team mates will get errors like this:
Failed to execute git clone --no-checkout 'email@example.com:ivoba/SomeBundle.git' [...] && git remote add composer 'firstname.lastname@example.org:ivoba/SomeBundle.git' && git fetch composer
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