I haven’t had a chance to mess around with App Engine. Google Cloud is solid in general, so I’m sure it’s as good as you say. Might need to do a follow up with comparisons :)
I’ve been meaning to try out Netlify! At first glance it definitely looks like a good fit for these types of one-offs. Seems like the free plan goes a long way too, unless you want more than one contributor on an account.
Thanks for the feedback @asteadman! We might consider featuring the most recent photo more prominently because that's the most common use case, but we don't want to confuse the user by sending them to specific content without context. That's the issue with just directly linking to the most recent content in your bio. Older photos with "link in bio" in the caption get sent to the wrong destination. Maybe we can offer the single redirect as an option to the user. Thanks again for checking us out!
https://craigphares.com/even-quicker-dirty-static-sites/