Plain-text notes: Android app and Linux CLI. Source and changelog: gitlab.com/symmetricity/note.
For automatic updates add this page to Obtainium
(Add App → source type HTML): URL https://note.symmetricity.online/apk/,
link filter note-v[0-9.]+\.apk, version from the link name.
All files.
Add the repo to /etc/pacman.conf, then pacman -Sy note-cli;
pacman -Syu picks up new releases.
[note]
SigLevel = Optional TrustAll
Server = https://note.symmetricity.online/arch/$arch