exactly, we're still fighting people trying to create closed wall gardens: iOS, windows, macOS's of various flavours, android to a lesser extent, parts of our p

exactly, we're still fighting people trying to create closed wall gardens: iOS, windows, macOS's of various flavours, android to a lesser extent, parts of our phones - places where we're allowed to write apps in frameworks that wont run anywhere else but not operating systems. To be fair it's used to be impossible to bring a hardware product to market without an OS and at least one compiler, and there were no portable compilers or operating systems when Burroughs, IBM, DEC et al were starting out - OS's and early compilers were often written in assembly, they just weren't going to be portable, and those walled gardens kept captured customers in the fold, you couldn't escape.