Developer Tools Weekend

Developer Tools Weekend

Build the tools you wish existed. A weekend dedicated to open-source developer tooling and infrastructure.

Hackathon

24.08.2026 – 26.08.2026
San Francisco, USA
About event

Developer Tools Weekend is for engineers who love the inner loop — IDE plugins, CLIs, build systems, debuggers, observability stacks. Pick a tool that bothers you, ship a credible v0 by Sunday and open-source it. We provide review from maintainers of the projects you already use, plus a modest prize pool for the most-adopted releases six months later.

Challenges
Language-Agnostic Test Impact Analyzer

Given a git diff and a test suite, predict which tests are most likely affected by the change. Should work for at least two languages. …

Selection deadline has passed

Local-First Observability for Background Jobs

Build a developer-friendly observability layer for queue-based job systems (Celery, BullMQ, Sidekiq). Self-hosted, single-binary, and visible at http://localhost — no SaaS dependencies.

Selection deadline has passed

Reproducible Dev Environments from a Single File

Design a manifest format that captures everything a developer needs to run a project — language version, system packages, services, env vars — and a …

Selection deadline has passed

Schedule

No schedule has been added yet.

Details
Start 24.08.2026 15:37 UTC
End 26.08.2026 15:37 UTC