* Requires building `Mapnik` * Which requires these `EPEL` repository packages * `boost169-devel` + dependencies * `gdal-devel` + dependencies * `proj-devel` + dependencies * Caches `Mapnik` build directory * Takes about 20-30 minutes without cache * Takes about 5-10 minutes with cache * Runs on `push` to `centos7` branch & `pull_request` * Includes very basic build documentation