That looks really great! Can't wait see it filled with life.
Meanwhile I'll share my solution. I'm an #email user since more than 30 years and I'm running my own email server since nearly the start of it.
The lack of having a reliable email client for my #Librem5, my sons #pinephone and #MobileLinux in general bothered me a long time. #Geary didn't fit my needs and #Thunderbird which I use on my desktop is no option for mobile devices, yet.
I ended up using #tangram to access a #selfhosted #snappymail.
