I made https://github.com/mpartel/ee-altgr-keymap https://github.com/mpartel/ee-altgr-keymap which is essentially the US layout plus AltGr+A -> ä AltGr+O -> ö

I made https://github.com/mpartel/ee-altgr-keymap https://github.com/mpartel/ee-altgr-keymap which is essentially the US layout plus AltGr+A -> ä AltGr+O -> ö You could easily add å if you want.