Driving International Collaboration Beyond Boundaries Through Hackathons: A Comparative Analysis of Four Hackathon Setups. - Alice Barana; Vasiliki Eirini Chatzea; Kelly Henao; Ania Maria Hildebrandt; Ilias Logothetis; Marina Marchisio Conte; Alexandros Papadakis; Alberto Rueda; Daniel Samoilovich; Georgios A. Triantafyllidis; Nikolas Vidakis (Inf., 2025)