https://github.com/plannotator/guides/blob/main/skills/plann...
It uses a baked in CDN that I host. Otherwise the size of the file would be pretty big. The diffs are by diffs.com.
You can also create a share link with the hosted service, which I encrypt client-side and only decrypts through the link you share. The sharing service is also open source and self-hostable and open-source at https://github.com/backnotprop/plannotator
Examples:
https://guides.show/g/gs0M7zgI_zYeuqtLG4j5vQ#key=awkuPrNypYr...
https://guides.show/g/Q-ECuRlzn6I2U41wmnyVmA#key=bA52euqWQyp...