I’ve been trying to upgrade my CMake skills for a while now, and although a few good books/videos/blog posts have appeared in the last few years, I’ve been struggling to find some good examples of real, working projects online. The ones I have found that look good and modern are all header-only C++ libraries, which is great, but I’m also looking for source/header libraries as well; applications; C and C++.

Can anyone point to to some projects on GitHub, GitLab, etc, that have really good, modern, CMake builds that are worthy of emulation?