Publishing in Marketplace a solution with multiple sppkg packages

We have multiple packages, each package contains a set of webparts. They share a common library package.

We would like to submit a solution in marketplace which has two sppkg packages. One for the webparts, and one for the library components used by the webparts. We are not able to upload two sppkg packages while submitting the application to the Marketplace.

Are two sppkg packages allowed for submission? If not, then what is a workaround?