# deps > Vendor dependencies.
This directory is the target directory for installing vendor dependencies (i.e., third-party libraries from external "vendors"). The directory is structured as follows: - `deps/checksums`: vendor dependency checksums. - `deps/test`: vendor dependency installation tests. - `deps/tmp`: location for storing dependency downloads. - `deps/build`: location for stored dependency builds. Neither the `tmp` nor `build` directory should be committed to the project repository.