This is a very nice idea for a game. I am having Unity 2020 throwbacks when it crashes randomly and causes me to lose progress. Luckily, no progress is lost for this game. Phew. This computer really needs a cleanup though, and probably upgrades to Windows 10? Jokes aside, I do like the gameplay quite a bit. The chaoticness and the frustration are immense but fun. The Windows 98 graphics trigger my nostalgia for the old days. And reading real code in a game is always a treat. Good job.
For some criticism and suggestions, I'd say you should have some onscreen instructions to tell the player what to do (i.e. open the IDE). There should be a way to include that nicely within the ui, but a simple popup will do. EDIT There is! silly me for not playing through the tutorial. Please ignore me
Anyway, this is quite a cool game! Keep up the good work!