This package is developed as open source but offered as an enterprise SaaS offering.
Now, the founders, being of European origin - have different ideas on development/design. And I don’t like it. But I want to work on that product and release my own offering, after forking their codebase - which I have already done.
I know Apache 2.0 is a permissive license. I am wondering if I’ll get into legal trouble later when I float my own company. I will use some of their code although I’ll make major changes.
I want to play it safe and avoid legal battles over copyright.
It's why I release most of my stuff under Apache 2: to give people freedom to use it how they want even if I may not approve.
Make sure that all the stuff you want to use is (a) actually Apache licensed and (b) actually theirs to license in the first place.