As soon as one works on a non-trivial piece of software and has a team >2 SCM becomes important. There was one SCM system for PP Smalltalk if memory serves righ

As soon as one works on a non-trivial piece of software and has a team >2 SCM becomes important. There was one SCM system for PP Smalltalk if memory serves right called Envy but it was quite expensive. But even more important than SCM is a module/library eco system. We can’t trade without reproducibility. Without it we are destined to re-invent the wheel. There is value in reinventing wheel - it is entertaining and stress free - as it does not matter for anyone but yourself.