Less than 10 for Airship. There's a lot of reasons for that, though (aside from the fact that we built it to be Tor-friendly, so it's nontrivial to measure how many installs exist in the world): We only supported PostgreSQL and only users capable of installing libsodium from PECL could use it. PHP 7.2 will make it possible for everyone to use Airship version 2, and MySQL 8 will add CTEs so we might be able to support the more mainstream database. https://wiki.php.net/rfc/libsodium
Less than 10 for Airship. There's a lot of reasons for that, though (aside from the fact that we built it to be Tor-friendly, so it's nontrivial to measure how many installs exist in the world): We only supported PostgreSQL and only users capable of installing libsodium from PECL could use it. PHP 7.2 will make it possible for everyone to use Airship version 2, and MySQL 8 will add CTEs so we might be able to support the more mainstream database. https://wiki.php.net/rfc/libsodium