I've had the same problem in game development. A few years after you've shipped a game, you can't build tje source code any more because it's dependent on tools

I've had the same problem in game development. A few years after you've shipped a game, you can't build tje source code any more because it's dependent on tools that aren't supported any more. It's not quite that bad, but true preservability is hard because all the tools need to be preserved too.