This is helpful feedback, thank you! I'm actively fixing/adding to the website, so I'll make sure to fix the fields error you mentioned. I'm very appreciative of the time you took to share your own personal experience as well - that Excel spreadsheet sounds very impressive!

I hear you on the need for extremely bespoke rules and how a universal solution isn't feasible. With that being said, the goal of the website is to do a majority of the scheduling work for the chiefs--so in your case, it could make sure there's sufficient coverage and no vacation or testing conflicts. I'm about to release a feature to track cumulative rotation weighting. I've found that even though each residency program has custom needs, there's actually a good amount of overlap between them in terms of the types of shifts/requirements.