But this version doesn't help you enough. I'll update it in the future. Metatable feature is very powerful when people do oop in lua. But in Factorio-lua, metatable feature is not practical at all especially for the giant project. This tiny example shows a practical way to do oop-like enough programming in Factorio-lua.
Counted when a user downloads a mod release for the first time. Before Nov 2021 it counted everytime a user clicked the mods download button.
Counted when a user downloads a mod for the first time. Has no data before Dec 2022