Support.
But also, Oekaki really just needs to be fixed.... Apparently
the issue I'm having with it isn't a Linux-exclusive issue, where the pen pressure setting just goes wonky. Some people having max pressure dots at the beginning and/or end of their stroke, or the line cuts out randomly as the pressure is let off, or like me the stroke cuts out at the highest pressure (so the middle of my stroke)... I'm seeing it talked about a bit
over here but there seems to be 0 help being given for it even after years.