Enhance redirects, Tweetback-style

[cssence]

CSSence.com already owns its own data, so all the tweets are there.

To get something like https://www.zachleat.com/web/tweetback/ by @zachleat, all that needs to be done is to create 426 additional entries in _redirects, where e.g. /twitter/${id}/ redirects to the corresponding articles and/or notes.

Edit: Enhanced scope, this should be on its own subdomain for all social networks (not just twitter), and the redirects should be extracted from the HTML.

Spoiler: In some cases this will require an additional :target CSS selector that unhides hidden tweets. 🥚