Agreed, those were the roots. But this thread is a bit about tooling/distribution on win vs linux and the C64 and Amiga is more like Windows than Linux in that

Agreed, those were the roots. But this thread is a bit about tooling/distribution on win vs linux and the C64 and Amiga is more like Windows than Linux in that sense. If prods would've been open-sourced or compile for yourself you'd lose control of packaging and stuff like track-ordering for disk-loading would've been impossible to control properly.