Free CRM for new small art business

Hi! I’m starting an art business doing commission paintings and I’m looking for a free CRM tool to keep track of my clients. I will mostly need it for: keeping track of schedules and deadlines, commission info, a waiting list.

I was gonna rawdog it with a spreadsheet but I’m realising it might not be feasible. I’m just starting so I don’t really have the budget for anything really. I think the nature of my business means that my clients are usually one off and there won’t be much needs for something complicated anyway.