Go to https://piefed.social/user/settings and choose 'OpenDyslexia' in the Font setting, halfway down the form.
This font looks odd to me but I'm told that it really helps some people. If you're one of those people, please let me know if you have any preferences around letter spacing or line height, etc.
Edit: PieFed also has Atkinson Hyperledgible
I'm not dyslexic and I think this font is great. There is a unique readability to this font that I can't quite put into words... and the reason I can't quite put it into words is I am not as sensitive to the things that dyslexic people are with reading, or my brain can hide it from me easier.. I don't know but what I do know is that if it wasn't for dyslexic people than this font would have never existed and I think it is a great example of how valuing accessibility for all has a cumulative benefit to everyone.