Build your app
There are many different ways to build an App ready to be sold on a Marketplace. It really depends on your goals. You may want to start with a MVP and develop a comprehensive solution later.
Either way, at Bravenn, we are working with Cloud certified architects and experts on Salesforce AppExchange and ServiceNow Store to help you build your IP on the right cloud for your business.
The "ready to be published" app might be of any kind:
Integration App - Simple connector or add-on to integrate your technology with the cloud solutions
Cloud-native App - Use containers or replatform to take advantage of the cloud marketplace and installed customer base
Cloud-native App with OEM platform - Automate your IP with your own branding while leveraging the cloud and the platform (PaaS)