Impact of in situ nuclear networks and atomic opacities on neutron star merger ejecta dynamics, nucleosynthesis, and kilonovae. - Magistrelli, Fabio; Bernuzzi, Sebastiano; Perego, Albino; Jacobi, Maximilian; Fontes, Christopher J. (Astronomy & Astrophysics / Astronomie et Astrophysique, 2026)