Do you re-use code, designs and content from previous projects?

Projects yes, acquired companies no 😂 But if you were lucky enough to exit a startup, it's likely that anything from it is already too old school. Tech stack change entirely every 7 years, design trends 4-5 so yeah.. Code and Design are replaceable but experience stays and it's NDA-proof 😅

Absolutely. I actually made tutorials. I don't like to only copy paste elements from other projects. I like to build them again, and remove the possible unused parts. We now use the tutorials in our team to quickly boost our projects.

Of course! That's the entire point of object oriented programming. Create a framework that works, then build off of that. If I can implement the new project into the previous project, then that's the optimal solution. No need to create an entirely new project when incorporating an idea works perfectly fine. It's much easier to maintain when you do it that way. If you find a way to make a class more efficient, it's much easier to just have to edit the one file than it is to update the same thing in every project.