Wow, mid 90s! Git came out in 2005, so I assume they started out using some previous version control and then switched to git? That must lead to some serious knots. Is there a way to retroactively migrate source control history into git? Depends on the legacy source control tool, I guess.
I think git-blame and git-cat-file are probably the next commands I need to explore in depth. Will investigate those further.
Thanks for sharing your gitconfig as well. Always interesting to see how others are streamlining their workday.