Since CiviCRM 5.23, one can set a custom L10n/I18n resource directory. Using this feature with Aegir and Drupal 7 profiles, this setting almost works: CiviCRM sites install with selected language, using the Drupal and CiviCRM language files (.po/.mo) located now at
Missing piece is that the
settings.default.json file of CiviCRM l10n settings is not picked up during install, so its settings are neglected. The file is at
civicrm/l10n/hu_HU, next to the .po files.
Is it a bug or am I missing something in my Aegir settings?