Thanks for this Justin, it's very useful in showing how I could add a Query block in a post or page.

What I don't get - possibly because it's not been 'done' yet - is how archives can be generated using blocks. An annual or category/tag archive would be an excellent use of the Query block, along with headings and other text - and much easier to construct than dipping into code - and I could probably create those using Pages.

But if I use 'pretty' permalinks, how to I get WordPress to generate the correct year/month/day archive? Based on what I've read so far there isn't yet a way to do this. Do I stick with the existing files, but manually add blocks code? Am I missing something?