[MM3-users] Trying to understand the mailman.cfg from the virtualenv installation guide

Hello,

I'm trying to install Mailman3 following the Virtualenv Installation guide. I would like to understand why the configurations in the displayed mailman.cfg are recommended.

Especially the following two:

[archiver.prototype] enable: yes

"The prototype archiver stores messages individually in var/archives/prototype/LIST_NAME/." https://lists.mailman3.org/archives/list/mailman-users@mailman3.org/message/...

Do I need this, when using hyperkitty? Is this a fail-safe recommendation?

[mta] verp_confirmations: yes verp_personalized_deliveries: yes verp_delivery_interval: 1

What is the background of these recommendations?

Thank you for your help! Greetings unite42