I am a student of Pedagogy from Seattle. I moved to Prague to be closer to my family.
gnome-zoom-control-window: I use a tablet with zooming functionality. I wanted to be able to controll zoom level with just the stylus, so I forked this project https://github.com/tobiasquinn/gnome-shell-mousewheel-zoom . I love open source!
FCHADs are cheep braille displays meant to be a low cost replacement for the expensive bulky peizo electric displays. They display one character at a time, but with quality solenoids should be able to change that character fast enough for reasonable reading speeds. The real trick, is that I've hooked the display up to a tablet, so I can control reading speed with mouse movement, this allows even a single character display to be useful.