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World savingEasy1 weekendUnder $100Web appWorld savingWeekend build

Compost Drop

Neighbors log food scraps dropped at a shared compost bin.

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The idea

A community garden or block puts up a QR code on its compost bin. Neighbors scan it to log a drop-off and the bin keeper sees how full it is getting and who is contributing. It keeps shared composting organized and shows the group how much waste they diverted.

Who it is for
Community garden and shared compost bin keepers
How it makes money
Free for one bin, paid plan for multiple sites
Suggested stack
Next.js, MySQL, Tailwind, hosted on a small VPS
Launch cost
Under $100

Your first AI prompts

Paste these into Claude, Cursor or Lovable, in order. Check that each one works before moving on.

PROMPT 1 OF 3

Build a web app called Compost Drop. A bin keeper signs up, creates a bin with name, location and capacity in buckets, and gets a printable QR code. Scanning the code opens a quick drop-off form with contributor nickname and size (small, medium, large bucket).

PROMPT 2 OF 3

Track each drop with timestamp and size, and compute a fill estimate for the bin. When the keeper marks the bin as turned or emptied, reset the fill level. Show a simple bar for fill level and a list of recent drops. Allow the keeper to add rules text shown on the drop form.

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PROMPT 3 OF 3

Add a monthly impact page per bin with total drops, estimated pounds diverted and top contributors by nickname, shareable as a public link. Email the keeper when the bin passes 80 percent full. Add a Stripe plan for groups managing more than one bin.

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The 10 step playbook

  1. 01Claim your ideaPut your name on it and unlock every prompt and the full playbook. Always free.
  2. 02Domain and nameBrainstorm a short name, check the .com, and register it.
  3. 03Trademark basicsSearch for conflicts before you fall in love with the name.
  4. 04AI build kickoffPaste the prompts below into Claude, Cursor or Lovable, one at a time.
  5. 05Server and hostingPick a host and have your AI walk you through setup.
  6. 06Backend and dataLogins, database and payments, one prompt at a time.
  7. 07Frontend and designScreens, colors and a simple logo that look professional.
  8. 08Go livePut it online, then submit to the App Store and Google Play if it is a mobile app.
  9. 09Marketing planLaunch posts, local outreach and your first 100 users.
  10. 10Launch and growShip it and add your live link to earn the Shipped badge.
Your full playbook for Compost DropEvery step spelled out for this idea, with the exact prompts to paste into your AI.
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