What I did for the past couple years, whenver publishing an article, copied the lede into the body content as first paragraph and used CSS to hide the duplicate except rendered by the Techblog/Modern theme.

Sneaky! :)

Looking at the post on Diff, the excerpt is there, which is good. But as you note, is not shown in our theme. On Diff we've used the excerpt feature almost exclusively for posts that are featured (sticky in WordPress parlance) on the home page to provide a, well, excerpt of what's in the post.

I ran a query against all the imported tech blog posts to get a list of those that have an excerpt. This includes their IDs, so you can access them via diff.wikimedia.org/?p=12345

@Krinkle I've (temporarily) made you an "Editor" on Diff. This should allow you to edit the published posts to fix this issue.

Thanks. All done now.

• Copied excert into a new paragraph with medium font-size, similar to how it was on Techblog.
• Cases where it was there already (i.e. mine) I left as-is, and removed my CSS hack.
• Cases where the excerpt was a near-enough duplicate of the first paragraph, I left as-is, instead of prepending the excerpt again. (This was more common on some older posts. I suspect the lede feature was not enabled yet or not realized yet.)
• I noticed that posts by Gilles no longer had his first/last name but were attributed to gdubuc. There was already an author for Gilles Dubuc so I re-assigned these accordingly.

For two posts, I noticed that their URL differed from the original Techblog post, because the slug was already occupied on Diff, and so the import added a -2 suffix. This means that, given the Techblog redirect is a domain-redirect (and not a post-redirect), the old posts actually redirect to the pre-existing post rather than to the imported ones.

This isn't a big deal because the posts are essentially identical anyway. These were either cross-posted or imported from the same common source. I've improved the formatting/tags of the original entries, and un-published the duplicates. Feel free to delete these. Or, if you see a use for them, feel free to publish them again.

• https://techblog.wikimedia.org/2021/10/08/roundup-google-summer-of-code-2021-and-outreachy-round-22/
  • https://diff.wikimedia.org/2021/10/08/roundup-google-summer-of-code-2021-and-outreachy-round-22/
  • https://diff.wikimedia.org/2021/10/08/roundup-google-summer-of-code-2021-and-outreachy-round-22-2/
  • https://diff.wikimedia.org/?p=1806, https://diff.wikimedia.org/wp-admin/post.php?post=1806&action=edit
• https://techblog.wikimedia.org/2014/12/29/how-we-made-editing-wikipedia-twice-as-fast/
  • https://diff.wikimedia.org/2014/12/29/how-we-made-editing-wikipedia-twice-as-fast/
  • https://diff.wikimedia.org/2014/12/29/how-we-made-editing-wikipedia-twice-as-fast-2/
  • https://diff.wikimedia.org/?p=1719, https://diff.wikimedia.org/wp-admin/post.php?post=1719&action=edit