@ploum random 1: I realized the other day that chat apps (e.g. menu-driven WhatsApp services or the ones very popular in Asia) are in the lineage of BBS and Gopher! Delta Chat offers some very interesting possibilities in this regard, including webxdc. (For example, you can host without any public IP, somewhat robust to network outages, etc.)

random 2: https://alexpdp7.github.io/responsive-handwriting/ as a hybrid of text and snail mail that adapts to the modern times