very cool idea I'd say! Some minor suggestions:
1. it would be nice if the cursor would not be lost after I enter a command, and I need to click on the input box to type something else.
2. The listed info is covered by Itch's sidebar.. I'm not sure how to remove them, so maybe consider a full-screen game?
3. it ends abruptly(and even before I input the password I decrypt:( I want to know the full story!!!
4. Maybe an up arrow key will give you the last command you input?
but overall a really cool game. I really want to see a full game of this!