You'll need the following dependencies:
- intltool
- libclutter-gst-3.0-dev
- libclutter-gtk-1.0-dev
- libgranite-dev
- libgstreamer-plugins-base1.0-dev
- libgstreamer1.0-dev
- meson
- valac
Run meson to configure the build environment and then ninja to build
meson build --prefix=/usr
cd build
ninja
To install, use ninja install, then execute with io.elementary.videos
sudo ninja install
io.elementary.videos