Hmm. A random thought: one of the blockers of migrating my email into my homelab is webmail, something my Mom currently depends on.
There ain't a lot of decent webmail clients. I tried setting up roundcube, but ran into all kind of stupid issues I don't really want to debug.
So I was thinking: what if I set her up with notmuch, and notmore as her local webmail? She only uses webmail from her miniPC anyway - she has K9/Thunderbird on Android. Or I could just... see if she's fine with Thunderbird, or Geary, or something other than webmail?