Migrating Talkyard to new platform?

Hi Steve, you wouldn't need to migrate anything. What you'd do, would be to add the embedding HTML code, to the Gatsby or Hugo site, too. (There're installation instructions for Hugo and Gatsby too.) So you have the HTML code, in all of Jekyll and Hugo / Gatsby. Then the comments will work with all of your Jekyll / Hugo / Gatsby installations.

(If the new site is on a different address (like, https://your.new.blog instead of https://your.old.blog), you'd add that new address to the Allow embedding from embedded comments setting.)