Social Good
Community Fridge Map
Find community fridges and see what food is in them now
Beginner8h1–2
LeafletNext.jsSupabase
17/20Missing Pet Finder
Post a lost pet and match it with found-pet sightings nearby.
Beginner10h1–2 people17/20 fit
Build Missing Pet Finder for pet owners and neighbours in ~10h with 1–2 people. Stack: Next.js + Leaflet + Embeddings.
Why it wins: Emotional story with simple tech.
Build flow
01 · Problem
Lost pet posts are scattered across groups and expire quickly.
02 · Solution
Owners post lost pets with photos and location, finders post sightings, and image similarity plus distance suggests matches.
03 · Build
- 1Build posting forms
- 2Map posts
- 3Embed photos
- 4Suggest matches
04 · Demo
Post a sighting and see it matched to a lost dog.
MVP checklist
- Lost and found posts
- Map view
- Photo matching
- Alerts
Tech stack
| Tech | Role | |
|---|---|---|
| Next.js | Frontend + API routes | Web |
| Leaflet | Interactive maps | UI |
| Embeddings | Semantic similarity | AI |
Reference repos
Open-source projects you can build on. Links checked 2026-10-31.
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