Practise fixing real vulnerability patterns with instant feedback
Intermediate16h1–2
FoundrySlitherLLM
17/20Gas Golf Leaderboard
Compete to solve challenges with the least gas.
Intermediate14h1–2 people16/20 fit
Build Gas Golf Leaderboard for solidity developers in ~14h with 1–2 people. Stack: Foundry + Next.js + Postgres.
Why it wins: Competitive and educational.
Build flow
01 · Problem
Gas optimisation is learned slowly with no feedback.
02 · Solution
Post challenges with test suites, measure gas of submissions with Foundry and rank them on a leaderboard.
03 · Build
- 1Write challenges
- 2Run Foundry gas reports
- 3Store results
- 4Rank
04 · Demo
Submit a solution and climb the leaderboard.
MVP checklist
- Challenges
- Gas measurement
- Leaderboard
- Solution reveal
Tech stack
| Tech | Role | |
|---|---|---|
| Foundry | Contract testing + deploy | Chain |
| 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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