464
Every time
(media.wetdry.world)
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wayward vagabond from homestuck: we should improve technology somewhat. well dweller: xkcd 927 "standards"
Also, CVS, cvsup, both of which I've used in my early Linux years.
And fossil -- which is the revision control system sqlite uses and I kind of like :)
It is also the version control system that uses sqlite which is pretty cool as far as disk space and resiliency are concerned.
I don't however like that it prides itself on not having any history rewriting features because I am kind of a fan of those. I like keeping embarrassing mistakes like a typo'd commit message or missing file out of my permanent commit history.