There's a couple of sites out there that do a similar "fill out our template and get a .ttf of your handwriting" thing, like Calligraphr[0] and Fontifier[1].

The concept of using a typeface for Parkinson's awareness and fundraising isn't too bad, though. It'll be interesting to see the next version of the font.

[0] https://www.calligraphr.com/en/

[1] http://www.fontifier.com/