You'll need the following dependencies:
- libswitchboard-3-dev
- libgee-0.8-dev
- libgexiv2-dev
- libgtk-4-dev (>=4.10)
- libgranite-7-dev (>=7.5.0)
- 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
ninja install