Which opensource software does everyone use but you absolutely loathe it?
@nixCraft systemd and git. They are nearly everywhere I need to collaborate with other people/teams and it is always painful. Always find it weird these projects became more popular than the better alternatives.
If not git what would you use and why if you don't mind me asking ?

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@justine @nixCraft I used to use Monotone. IMO it was better than git in a couple of respects. However, it mostly lost the popularity race to Git and the devels lost steam.