additional.php is maintained in Git now (taken over from DDEV's
generated file): DDEV settings apply inside DDEV only, and
secrets.php (gitignored, template secrets.example.php) is merged in
everywhere, ignoring empty values. The web container reaches the local
MyE&P project as myep-next.ddev.site, as in EP/website.
Co-Authored-By: Claude Opus 5.5 <[email protected]>