Two weeks to build developer tools in the open. Registration is open now.
- Register
- Build
- Submit
- Judging
Hosted by Acme Labs · Free to participate
For people who make things
Your next build starts here.
Find a challenge. Catch up on what matters. Make something worth showing.
- 1 hackathon open now
- Free to join and to host
- Three judges per entry
- Deadlines in your time zone
Fair by design
Rubrics are fixed before judging starts, and every entry gets independent reviews.
Sources, always
What changed, why it matters and what you can build with it, linked to the original.
Sponsorship, clearly labeled
Paid placements say Sponsored and name the buyer. They never change ranking or results.
Built for teams
Find your people, draft together and submit before a deadline that never moves.
News
What changed, and what you can build with it
Frontend
Review: Vitest - a Vite-native test runner with a Jest-style API
Vitest is an open-source test framework built on Vite. It reuses the project's Vite config and transforms, runs TypeScript and ES modules without extra setup, and offers a Jest-compatible expect, mocking and snapshot API, so many Jest suites move over with small changes. It includes a fast watch mode and an optional browser mode.
Frontend · Security
Nonce-based CSP with strict-dynamic, explained
A per-request nonce lets trusted scripts load their dependencies without allowlists.
Frontend
WCAG 2.2 sets a minimum size for pointer targets
Success criterion 2.5.8 asks for targets of at least 24 by 24 CSS pixels.
Tools
Tools worth trying
Keyguard
Scans commits for leaked API keys and rotates them through your secret manager.
SecurityFree tier and paid plans
Flakehound
Finds flaky end-to-end tests by replaying failures against recorded traces.
TestingFree
Schemasmith
Review database migrations in pull requests before they lock a production table.
DatabaseFree tier and paid plans
Tracewell
Open-source request tracing that runs next to your app with no agent to install.
ObservabilityOpen source
Projects
Made by the community
Offline-first meeting notes
Notes that sync when the conference Wi-Fi comes back.
by Bob Member
Migration lock linter
Flags migrations that take an ACCESS EXCLUSIVE lock on hot tables.
by Carol Owner
Keyboard-first judging scorecard
A scorecard judges can complete without a mouse.
by Alice Owner
How a hackathon runs
From sign-up to results in four steps
Register
Check eligibility and rules up front, then join solo or with a team.
Build
Work in a shared team workspace with drafts that save as you go.
Submit
Upload your demo and repository before the server-side deadline.
Get judged
Independent judges score each entry on published, weighted criteria.
Bring a challenge. Get people building.
Publish rules, tracks and prizes, manage teams and judges, and release results from one workspace. Hosting is free.