Thanks for leaving a comment! Yes, when I started developing I was using WASD to move and some specific letters as hotkeys for the different actions, but then I switched to arrows only to be able to use 1-5 for actions. About the game felling repetitive; yes, I had a lot of things planned (different visitors, more machines, more events,...) but for a 3 days jam I had to cut lots of these.
I will work on ways to improve the input and will definitely add more content, thanks for the feedback.