I really enjoyed this! I got that nostalgic feeling even though I wasn't even alive during this era of computers, so that says something about the feeling of authenticity this evokes. The only real issue I encountered was the tilde key not working, but that was caused by me having a non-English keyboard setting where the tilde is replaced by a semicolon. So, I had to quickly switch to an English keyboard. Otherwise, this was really enjoyable. The puzzles weren't that hard, but they were still enjoyable to solve, and I like how you put hints for the puzzles on your site rather than just a straight-up solution.