Hosted by Acme Labs
Open Tools Hack
Two weeks to build developer tools in the open. Registration is open now.
Registration openFree to participate · Online
Event timeline
9 daysuntil registration closes
- Register
- Build
- Submit
- Judging
Dates in the event timezone (Europe/Berlin)
Key dates
Times are shown in the event timezone (Europe/Berlin) with your local equivalent. The server deadline is authoritative.
Registration closes
Event timezone: Europe/Berlin
Next: in 9 days 20 hours
Building starts
Event timezone: Europe/Berlin
In 10 days 20 hours
Submissions close
Event timezone: Europe/Berlin
In 24 days 20 hours
Full schedule
- Registration opens
- (Europe/Berlin)
- Registration closes
- (Europe/Berlin)
- Building starts (rules lock)
- (Europe/Berlin)
- Submissions open
- (Europe/Berlin)
- Submissions close
- (Europe/Berlin)
Register
Check the eligibility criteria and read the rules below before you commit.
Registration is open. Sign in to check the eligibility criteria and join.
About the challenge
- Host
- Acme Labs
Eligibility and teams
Every participant confirms:
- I am 18 or older
- I am not employed by the host
- Admission
- Open admission: accepted instantly when you meet the eligibility criteria
- Team size
- 1 to 5 people (solo participation allowed)
- Tracks per entry
- Up to 1
- Cost
- Free to participate
Tracks
Restrictions are shown here before your team commits to a track.
Main track
Main
Prizes
An entry can win at most one prize
Judging
Usefulness, technical execution, polish and the quality of the demo.
Each eligible entry and track is reviewed by 3 independent judges on weighted criteria scored 0 to 5. Ties are resolved by the published criterion order.
Submission requirements
- Repository link: required
- Project summary: required
- Demo: uploaded recording or a live demo link required
- All uploads must finish before the deadline; starting an upload or clicking submit before cutoff is not enough.
Official rules
Rules version 2.
Summary
Be kind, build in the open, submit before the deadline.
Latest change: Published the complete demo rules.
Full rules
Be kind, build in the open, and submit before the deadline. Teams of up to four.
Pre-existing work
Libraries and starter templates are fine; the project itself starts at build.
AI use disclosure
AI assistants are allowed. Say which ones you used in the submission.
Judge access to private code
Public gallery
Projects may appear in a public gallery after results.
Code of conduct
Be respectful in every channel. Harassment of any kind leads to removal from the event.
Report a problem
At a glance
Registration closesin 9 daysThu, Oct 22, 2026, 9:18 AM GMT+2
- Cost
- Free to participate
- Format
- Online
- Admission
- Open admission
- Team size
- 1 to 5 people
- Tracks
- Main
- Prizes
- None announced
- Timezone
- Europe/Berlin