Hyperkitty = the archiver for Mailman version 3

• https://fr.wikipedia.org/wiki/GNU_Mailman
• https://docs.mailman3.org/projects/hyperkitty/en/stable/install.html
• https://docs.mailman3.org/projects/hyperkitty/en/latest/
• https://gitlab.com/mailman/hyperkitty
• https://github.com/hyperkitty/hyperkitty
• https://tigrerayé.org/post/2022/07/10/hyperkitty-part-en-vrille-après-suppression-dune-liste/