boost : Famous Boost libraries for C++, but built via CMake, not b2 ( https://www.boost.org/ )
cppgenerate : A library for generating C++ code from C++ ( https://github.com/rm5248/libcppgenerate )
dbus-cxx : dbus c++ API library. Developer said it's threadsafe. c++17 required. ( https://dbus-cxx.github.io/index.html )
simdjson : SIMD accelerated C++ JSON library ( HOMEPAGE=" )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a ex_repo
For Paludis use this rsync : rsync://gentoo.zugaina.org/ex_repo-portage
If you have a problem : ycarus(-at-)zugaina.org