The Issue:

We have a large development team with many internal packages (artifacts) We have many tools to pull in a mirror external dependancies as well as internal packages/artifacts, we currently use a few open source and free solutions, such as 

• https://github.com/verdaccio/verdaccio 
• https://www.sonatype.com/products/repository-oss 
• https://github.com/composer/satis 

But they are a pain to manage and some of the language package managers are not well supported, such as PHP and Composer.

We have explored a few paid options, such as 

• https://www.sonatype.com/products/repository-pro?topnav=true
• https://jfrog.com/artifactory/ 
• https://aws.amazon.com/codeartifact/ 

Here are a few other offerings

• https://www.g2.com/products/jfrog-artifactory/competitors/alternatives

I would encourage Atlassian to enter this space as there is a need for mature tooling that integrates with the existing internal and external dependancies. Possibly could also explore 

• vulnerability scanning
• license scanning
• metrics on usage

I'm thinking this might be a good fit for the Datacenter option