The i-processes nucleosynthesis during the formation of He-rich hot-subdwarf stars T. Battich, M. M. Miller Bertolami, A. Weiss, M. Dorsch, A. M. Serenelli and S. Justham A&A, 699 (2025) A298 Published online: 14 July 2025 DOI: 10.1051/0004-6361/202453572