Good news regarding accessibility: math in PDF files is finally fully accessible, and can be navigated and read by capable assistive technology.
https://pdfa.org/accessible-math-in-pdf-finally/
Centre Mersenne
Centre Mersenne pour l'édition scientifique ouverte // Centre Mersenne for Open scientific publishing
Nous sommes une plateforme d'édition en libre accès pour publications scientifiques / We are an open access publishing platform for scientific publications
A new journal coming soon to the centre Mersenne!
The Journal of Lie Theory, previously published by Heldermann Verlag on subscription, will soon be published by the University of Reims and distributed by the centre Mersenne under a diamond open access licence.
The transition to diamond open access was made possible thanks to the support of MathOA, the University of Reims Champagne Ardenne, KOALA, and CNRS Mathematiques (Insmi).
https://www.mathoa.org/journal-of-lie-theory-flips-to-diamond-oa/