In order to build this repository, you need to clone the following submodules (as the current KDE git infrastructure does not support submodules)
[submodule "3rdparty/azmq"] path = 3rdparty/azmq url = https://github.com/zeromq/azmq
You can do it by executing the following from the repository root:
mkdir 3rdparty git clone https://github.com/zeromq/azmq 3rdparty/azmq
The Boost libraries are not provided in the 3rdparty directory, the build relies on you having Boost 1.67 or greater installed on your system. If Boost is not found, you can pass a custom BOOST_ROOT value to cmake.