These are tools built by the community to upload apps on the platform.
Java CLI to upload apps to Appaloosa
https://github.com/octo-online/appaloosa-client
Ruby client to upload apps to Appaloosa
https://github.com/lacostej/appaloosa-store-ruby
Node.js client to upload apps to Appaloosa
https://github.com/diegovallarta/appaloosa-client
Gradle plugin
https://github.com/sagix/appaloosa-deploy