Caching your build workspace involves persisting the filesystem used during the build process so it can be reused in subsequent builds, significantly reducing the time and network traffic associated with resolving and downloading library dependencies. This is particularly beneficial for larger projects where starting a new build from scratch can take several hours. Codefresh facilitates this caching process by utilizing Docker containers for each build step and provisioning a portable filesystem known as the "Codefresh Volume," which is consistently linked to each build step container. The process begins with a git-clone container to copy the repository into the Codefresh Volume, which is then used across all subsequent steps, allowing for efficient reuse of cached dependencies. For build tools like NPM that resolve dependencies into the project directory, caching occurs automatically, while tools like Gradle or Maven require simple configuration adjustments to store dependencies in the Codefresh Volume.