spdlog

Backlinks from these awesome lists:

• fffaraz/awesome-cpp
• rigtorp/awesome-modern-cpp
• jobbole/awesome-cpp-cn
• p-ranav/awesome-hpp
• ly0n/awesome-robotic-tooling
• caerind/awesomecppgamedev
• ahundt/awesome-robotics
• stevinz/awesome-game-engine-dev