hackathon·Apr 16, 2026 – Apr 19, 2026·Mixed· hybridUA-friendly
ETHSilesia / ETHWarsaw Hackathon 2026
Polish web3 hackathon, very accessible from Ukraine; ETHSilesia 2026 had 100+ hackers and 44 projects.
Open site →Prize / Funding
30,000+ PLN bounty pool reported for ETHSilesia 2026
Eligibility
Open globally; CEE-focused community