Digging git history in terminal
https://medium.com/@drdmason/git-blame-all-the-way-back-62957f8407
Digging git history in Github
https://help.github.com/en/github/managing-files-in-a-repository/tracking-changes-in-a-file
Digging git history in IDEA
https://www.jetbrains.com/help/idea/investigate-changes.html#annotate_previous_revision
