Good news: Google no longer requires publishers to use the AMP format. Bad news: What replaces it might be worse, I think I may remove AMP pages next month.
An outline plan, spread over several weeks if needed, is:
amphtml
links to AMP out of the related pages, and add noindex
to all AMP pages. I was able to add a whole new article series without any sweat!
The first three pieces are up.
Weather has been quite grim with low PV generation over the last ten days or so.
A five-hour broadband outage, possibly a RADIUS problems in the wholesale supplier upstream of my direct ISP. Starting up a DSL/FTTC session worked, apparently, but our (static) public IP address was not assigned to the link, and there was no inbound traffic...
I have split out header CSS minification into a separate pass after the full HTML page has been generated. That eliminates a lot of complex logic to guess early what CSS to retain and what to drop.
This logic was not always right before. Now nothing should be dropped that is needed. A little more that is not needed should be dropped.
The upshot is that a few minimal pages such as the 404 page are a little smaller, while a few others are a little larger.