Helpful links from Tom Rhodes:
- https://developer.wordpress.org/block-editor/reference-guides/block-api/block-context/
- https://github.com/WordPress/gutenberg/blob/trunk/packages/block-library/src/query/block.json#L43
- See how the query pagination handles the context
- https://github.com/WordPress/gutenberg/blob/trunk/packages/block-library/src/query-pagination-numbers/edit.js
- https://github.com/WordPress/gutenberg/blob/trunk/packages/block-library/src/query-pagination-numbers/index.php
- https://github.com/WordPress/gutenberg/blob/trunk/packages/block-library/src/query-no-results/index.php
- https://www.npmjs.com/package/@wordpress/create-block
- https://developer.wordpress.org/block-editor/reference-guides/packages/packages-server-side-render/