Thanks for taking the time to read my ramblings! 😄
for “instant appearance” […] you could simply revert to client-side JS code.
I will definitely check that out and try to implement client side rendering for webmentions.
On the other hand, only rebuilding the site whenever new content is created, embraces the concept of slow web. I guess anyone taking the time to write a response could also wait until I feel the need to tell something new to show their face up on my site 😅.