Social Good
Shelter Bed Availability Board
See which shelters have free beds right now
Intermediate14h2–3
Next.jsSupabaseLeaflet
17/20Community Water Quality Map
Map water test results and complaints by neighbourhood.
Intermediate14h2–3 people17/20 fit
Build Community Water Quality Map for residents and local health groups in ~14h with 2–3 people. Stack: Leaflet + Next.js + Postgres.
Why it wins: Public health with community data.
Build flow
01 · Problem
Contaminated water goes unnoticed until people get sick.
02 · Solution
Collect test kit results and complaints, map them, flag clusters and notify authorities.
03 · Build
- 1Build forms
- 2Map data
- 3Detect clusters
- 4Generate report
04 · Demo
Add test results and show a flagged cluster.
MVP checklist
- Test uploads
- Complaint reports
- Cluster flags
- Authority reports
Tech stack
| Tech | Role | |
|---|---|---|
| Leaflet | Interactive maps | UI |
| Next.js | Frontend + API routes | Web |
| Postgres | Relational database | Data |
Reference repos
Open-source projects you can build on. Links checked 2026-10-31.
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