You'll need the following dependencies:
- gnome-settings-daemon-dev
- libswitchboard-2.0-dev
- libgnome-desktop-3-dev
- libgee-0.8-dev
- libgexiv2-dev
- libgtk-3-dev (>= 3.22)
- libplank-dev
- libgranite-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
sudo ninja install