Move a section without breaking links

To rename blog/ to articles/:

1. Move the folder.

2. Add articles/_defaults.jsx so every page answers at its old URL too:

   aliases = [page.path.replace(/^\/articles/, "/blog")];
   

3. Build. /blog/2021/ngrok gets a redirect page to /articles/2021/ngrok, /blog redirects to /articles, and the old feed URL /blog/feed.xml keeps serving the feed itself, so subscribers don't notice. Old pages are gone from _public/ because every build starts clean.

On a host that reads _redirects, you can add /blog/* /articles/:splat too, for real 301s. See Aliases and redirects .