What a bummer the website https://www.calligraphr.com is a subscription model. I could impulsively pay $100 to get my handwriting as a TTF font and be quite happy about it.

TFA goes into this in some depth: there's an option to subscribe for one month with a one-time payment. After the month is up, your account automatically reverts to the free plan and you get an email with your fonts attached.

The subscription is only for backups and ongoing changes - you get to keep your font forever. I think the author mentions that the whole experience cost them about $10