Mirror
Noun · Development
Definitions
A replica server or repository that maintains a synchronized copy of another source — such as a Linux package repository, a Docker registry, or a Git remote — to provide geographic redundancy, reduce bandwidth on the origin, or satisfy air-gapped environments.
In plain English: A copy of a software repository hosted in another location so people can download from a closer or more reliable source.
Example: "Our CI pulls from an internal PyPI mirror so builds aren't blocked if upstream goes down."