OKBoard (a.k.a. Magic Keyboard) is a gesture based keyboard that allow single stroke typing. Usage is explained in this video. English, French and Dutch are supported without the need for additional packages, other language resources are available in separate packages, e.g. for Swedish (okb-lang-sv). It currently works on Jolla phone, Xperia X / XA2 / 10 / 10 plus. Larger phones (such as XA2 plus/ultra & Fxtec Pro1) will be supported in a later release.

Do not use other third party keyboards at the same time (unless they are just simple layouts for new languages).

Source code: http://git.tuxfamily.org/okboard/okb-engine.git/ and http://git.tuxfamily.org/okboard/okb-keyboard.git/. Instructions for adding new languages are included in README.md files (latin alphabet only at the moment)

If you get an error message about missing dbus-python rpm file when installing, just run "pkcon refresh" as root and try again.