It works well for me by using screen and irssi on a server and then using mosh on the smartphone to connect there, as well as irssi-notifier for notifications. Has worked well around the work, including traveling in africa, from high speed trains in Europa and airplanes above the Atlantic. And before you say "but that needs a server". Yes it does. A little VM as a shell host that is cheaper be month than the cheapest nitro package on Discord. Not even one coffee per month. If you don't think it's worth to have control over your communication for that price, I can't help you.