Utility for native window access.
Install x11-repo first.
Install following library: libxkbcommon, libx11, xorgproto.
Install following library: libx11-dev, libx11-xcb-dev, libxkbcommon-dev, libxkbcommon-x11-dev.
Install x11.
You may see missing dependency of xextproto, which cna be found on Cydia/Telesphoreo. It may not be avaliable on new Cydia, but you can still manually download and install from here.
xkbcommon is not provided on Cydia, maybe try build yourself.
WindowHost (including its component) is licensed under the MIT license.