🟡 Weekend — A focused Saturday + Sundaynext.jsshareable-link
Splitting a group trip's costs without everyone installing the same app
“Splitwise is fine until half the group won't download it. We end up with a chaotic Notes doc and someone always gets shorted.”— r/travel ↗
The gap
Splitwise dominates but its wall is 'everyone must have an account.' A zero-signup, one-shareable-link splitter (anyone with the link can add an expense) removes the exact friction people complain about.
For
Friend groups on trips
Paste-ready build prompt
Build a no-signup group expense splitter in Next.js. Creating a trip generates a secret shareable URL; anyone with the link can add an expense (who paid, amount, who it covers) — no login. Show a live 'who owes who' settle-up summary minimizing transactions. Persist per-trip data keyed by the URL slug (start with a JSON store or SQLite). First 3 steps: (1) create-trip route that mints a slug, (2) add-expense form on the trip page, (3) the settle-up algorithm + summary view.