webkitgtk

p7zip

https://src.fedoraproject.org/rpms/mpv/tree/f37

Build Source Types https://docs.pagure.org/copr.copr/user_documentation.html#build-source-types

https://ninja-build.org/manual.html#_environment_variables

Ninja supports one environment variable to control its behavior: NINJA_STATUS, the progress status printed before the rule being run.