I previously did a "Show HN" (https://news.ycombinator.com/item?id=40966268) when I got my custom database to a point where you could query the internet like a structured database by treating CSS selectors/URLs as valid identifiers ie the following:

``` SELECT span.titleline > a AS post_title, span.titleline > a@href AS post_link FROM https://news.ycombinator.com; ```

And now have a bookmarklet that makes it easy to "pluck" details from pages in order to have in a exportable format such as text, CSV, or a code-gen PSQL script to populate a table! Watch the video on my current landing page to see how the end-to-end flow looks at the moment :)