Feature idea: queue a whole Q4 push and have it auto-spread across boards by date

Every October I do the same manual work: 240 holiday pins, 9 boards, want them trickling from Oct 10 through Dec 22 with more weight in the last three weeks, no more than 2 per board per day, and the gift-guide ones front-loaded because people shop earlier every year.

Right now that's a spreadsheet and four hours. What I want is: drop in the batch, set a start and end date and a weighting curve, let the tool assign slots and show me the calendar before it commits. Is anybody building this or am I keeping the spreadsheet?