The jetNEXUS base Docker image is the starting point to start developing jetNEXUS Add-Ons.
Add-Ons run on the jetNEXUS Load Balancer or on the Free jetNEXUS Application Delivery Platform. Get them here: https://appstore.jetnexus.com/product-category/jetnexus-platform/
Once you have created your app you will need to go to the Forge to package it for deployment.
This can be done here: https://appstore.jetnexus.com/smart-file-forge/smart-file-forge.cgi
Once packaged the app can be either deployed onto your load balancer or Application Delivery Platform or it can be sold (or given away) via the app store https://appstore.jetnexus.com