Creating common virtual ground: Protocols to democratize open VR research - Anand P. A. van Zelderen; Theodore C. Masters-Waage; Salvatore J. Affinito; Anely Bekbergenova; Kirsten Cowan; Tilo Hartmann; Mary M. Hausfeld; Albert Jolink; Jakob J. Korbel; Theo Lynn; Laetitia Renier; Dhruv P. Singh; et al. (Proceedings of the National Academy of Sciences, 2026)