- https://github.com/mzucker/noteshrink - handwriting to PDF
** Instant messaging
- https://letsconvene.im/ - browser-based conversations without accounts
+ - https://github.com/kiwiirc/plugin-conference - Jitsi/KiwiIRC integration
** Password managers
- https://keeweb.info/ / https://github.com/PhilippC/keepass2android have built-in support for remote storage, so they do not rely on external file synchronization
* Anti social