A Swedish Colemak DH layout for the /usr/share/X11/xkb/symbols/se file.
1 2 3 4 5 6 7 8 9 0 + '
q w f p b j l u y ö å ~
a r s t g m n e i o ä '
z x c d v < k h , . -
If installed manually, the layout variant needs to be added to /usr/share/X11/xkb/rules/evdev.xml.