The new pie tool to install PHP extensions uses metadata from packagist to install extensions. To allow installing the PHP extension with pie, we need to:
- Add a composer.json file to the repository, containing extension metadata (see https://github.com/ThePHPF/pie-design/blob/main/composer-json-php-ext-schema.json)
- Tag a release (e.g. alpha) to test installation; pie currently does not support installing from a branch