A more heavy-hitting program, this allows deeper exploration of textual relationships. Billed as “A tool for notes” by it’s creator Mark Bernstein, it’s one of the most powerful knowledge software I’ve ever worked with. http://www.eastgate.com/Tinderbox/
Affinity’s Designer
Affinity develops a powerful, low-cost suite of software with a perpetual license for designers who don’t want to pay expensive subscription fees. Highly recommended. https://affinity.serif.com/en-us/
The Braille Institute’s Atkinson Hyperlegible font
A beautifully designed Humanist Sans font, it was created specifically for low-vision readers and is available free for download. https://www.brailleinstitute.org/freefont/