Be careful with that stuff! I know somebody who contracted severe isomorphism

The way I understand it, ufw is a frontend for iptables. So no.

Where indexing and searching mails is concerned, notmuch is the best I’ve seen. Do note that this is not an e-mail client, it only indexes, tags and searches (following the “UNIX philosophy” of doing one job well).

I personally use it with neomutt as a mail user agent, which is almost certainly not what you want. Notmuch supports other clients but they’re all pretty arcane.

So this is not a recommendation, just a glimpse into advanced e-mail setups I guess.

No need for external programs:

for_window [class="^.*"] inhibit_idle fullscreen
for_window [app_id="^.*"] inhibit_idle fullscreen