Anecdotal, but my first job's first project was to take ownership of a codebase my team had just been given from another part of the company which nobody on the

Anecdotal, but my first job's first project was to take ownership of a codebase my team had just been given from another part of the company which nobody on the team really knew. Ensuring the documentation was up to date (it wasn't) and the other developers on the team were able to get, build, and deploy the codebase to their own VMs was literally the first thing I did--and it gave me a reasonably good basic understanding of the software to allow me to move forward with owning/working on it in the future. To be honest, it was a kind of frustrating onboarding experience, but it definitely met the team's goals with a minimum of disruption to people who were shipping features.