Nobody remembers when the furnace filter was last changed
“I own a house and genuinely cannot tell you when I last changed the HVAC filter, flushed the water heater, or cleaned the gutters. I find out when something breaks.”— Hacker News ↗
Home-management apps (HomeZada, Dwellable) want your whole property profile and push paid tiers; devs literally resort to tracking house repairs in GitHub issues. The gap is a dead-simple shared log — task, last done, recommended interval — that nags the whole household, not one person's phone.
Homeowners (especially first-time)
Build a household maintenance log in Next.js. Seed ~20 standard tasks (HVAC filter, smoke-detector batteries, gutter cleaning…) each with a recommended interval; users log 'done' and the app computes overdue/upcoming from lastDone + interval. Household is shared via a secret link, no accounts. First 3 steps: (1) `MaintenanceTask` model + seed data with intervals, (2) a 'mark done' action recording who/when with history, (3) an overdue/upcoming dashboard plus a weekly cron route that emails the household digest.