Not all smartphones have the storage to store 2TB of songs. Phones with micro SD cards are rare as platinum these days.

I think it can at least carry 2TB of offline music for you if you still like owning your own music if that's your thing. It's an option, nothing wrong with that

I've been using Jenkins for almost a decade and it's my goto for any CI/CD work just cause of the wide plugin support, documentation, integration with other tools and at this point, familiarity. It integrates nicely with Jira where i can see Jenkins build status for a given story, It shows up as GitHub checks to add against a PR, it can push/pull artifacts to Artifactory, have HTML view of test results, slack messages, open source if you're into that and it can do a lot more.