// contact
contact
A listing is wrong, a hackathon is missing, or you have a question about the directory. Here is where to send what.
last updated 5 September 2026
submit a hackathon
Use the submit form. It asks for the name, link, dates, city and format; everything else is optional. Submissions are reviewed by hand and are usually live within 24 hours.
correct a listing
Wrong date, wrong city, an event that does not belong here, or an image that is not yours: resubmit the event with the right details through the form and note in the description that it is a correction. We match it to the existing listing and replace it.
featured listings
Everything about price, run time and banner design is on the submit page. Payment runs through PayPal; you receive an invoice automatically.
newsletter
Unsubscribe through the link in every issue. Your subscription is switched off immediately; we do not delete it, so a later sign-up form cannot silently re-add you.
everything else
For questions about a specific event — rules, teams, registration — the organiser is the right contact; every listing links to their page. For questions about the directory itself, use the form and write "question" in the title.