Thanks for reaching out!
It seems as though you have resolved your question, and that’s great! The
fact that you came back and posted your solution is great. This will allow
others who face the same issue to be able to resolve their issue.
Regarding your query about Memcache, it is not
For completeness, as I wandered in the wilderness confused I stumbled upon
this:
https://cloud.google.com/appengine/docs/standard/go/go-differences#migrating-appengine-sdk
... and I believe the answer to my question is *don't* do what I was
attempting, instead skip the Google App Engine