Daisy Lomo (daisylomo)

Arbiter Hacks V1

Online

Open innovation for all, submit projects that have potential impact and usability!

$7,800 in prizes
Dec 21, 2026 12:00 AM EST to submit
782 participants

PayPal AI Hackathon

Online

Build what’s next with PayPal and AI

$67,500 in prizes
Nov 12, 2026 03:00 PM EST to submit
26427 participants

Nebius x NVIDIA Global AI Hackathon

Online

Build the next frontier of AI on open infrastructure

$50,000 in prizes
Winners TBD
29888 participants

RevenueCat Shipaton 2026

Online

Ship apps and start making money.

$740,000 in prizes
Winners announced
28564 participants

Bitcoin++ Open Source Edition

Nairobi, Kenya

bitcoin++ works in public

$6,180 in prizes
Jun 17 – 18, 2026
90 participants