GreenHack 2026 is a 24-hour hackathon exploring the intersection of artificial intelligence and sustainability. Under the theme “AI and Sustainability: Friend or Foe?”, the event brings together hackers, developers, designers, data minds, students, innovators and sustainability enthusiasts to work on real-world challenges from partners.

The 6th edition of GreenHack takes place on 5–6 June 2026 at 42 Prague. Participants can join individually or in teams of 2–4 people, build a team on the spot, develop practical solutions, meet mentors, and compete for €4,000 + additional partner prizes.

GreenHack is not about greenwashing. It is about real builds, real data, real impact — and testing whether AI can become a useful sidekick for a more sustainable future. Registration is required at www.greenhack.eu

Roots & Futures is a curated, invitation-led residential gathering in Hostačov bringing together practitioners, educators, founders, and investors working across regeneration, education, leadership, and systems change in Central & Eastern Europe.

Across these fields, important work is already happening — but often in parallel. This gathering creates space for those threads to meet, building trust, shared understanding, and the foundations for longer-term collaboration across the region.

Over three days, participants move through facilitated workshops, embodied practices, reflective and relational work, and systems-focused dialogue, alongside time in nature and informal connection.

The programme follows one arc: self → relationship → system → action, exploring both the inner and outer dimensions of systemic transformation.

Roots & Futures is also a founding moment for a longer-term ecosystem of collaboration in the region, and a seed gathering for The Gathering Czechia 2027.

👉 More info: https://rootsandfutures.cz/

🗓️ 11 – 14 June - Prague

📍 Chateau Hostačov, Czech Republic