@pierre-avinain @happy44300 Thanks for the encouragement! It means a lot for my second (published) LD entry.
@parkerduncan Glad to hear you liked the idea - I'm curious to see how others would have done it (I haven't seen any for this LD so far).
As for supermarkets, they need "stuff", which is produced by factories. If you build a factory nearby (realistically, anywhere with utilities, since they have a large range) supermarkets should then have "stuff" to sell.
I've added penalties for debt to a [to-do list](https://gitlab.com/dacoffee/ld42/milestones/3) for a future post-LD update. The original plan was that any buildings whose balance dropped below 0 would move out, leaving an empty lot that needs demolishing, but this wasn't added by the deadline. Instead, I'm intending to add an income-based tax mechanism, meaning that if a building's needs aren't satisfied, their income drops, meaning you can't claim tax from them.