It is not currently possible to upload apps with the same ID across multiple tenants. You may upload an app to your test tenancy and would now like to upload to your production tenancy.
This utility is used to rename apps, which would allow you to quickly change app IDs to allow for upload them across multiple tenants.
https://www.npmjs.com/package/@collabco/myday-rename-app
This tool will change app ID, file and directory names, AngularJS modules, CSS classnames, etc. in one go.
Overall it would be best to use a pattern of {tenantalias}.appname, e.g. collabco.rssfeed and collabcotest.rssfeed for your test and production tenants, respectively.
You wold be looking at executing a command like the following using the naming of the app as above:
npx @collabco/myday-rename-app --path ./collabco.rssfeed --appId collabcotest.rssfeed