Martijn Wennink

It's not broken, you are missing a `psr/http-message-implementation`, e.g. `zendframework/zend-diactoros` So I guess this would do: `composer require zendframework/zend-expressive zendframework/zend-diactoros`

jups, array notation is from Pimple, which is the container being used by Slim. Object property notation is from the Slim\App object, which ports to the container. This is a...