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Nix Hackers

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For people hacking on the Nix package manager itself189 Servers

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13 Sep 2025
@puck:puck.moepuck the nix language without e.g. derivation is ... kinda hard to use 20:55:05
@puck:puck.moepuck i once experimented by taking the nix source code and taking out everything that isn't the expression interpreter; very little was left. just a handful of primops; i didn't even have import because it depended on the FS 20:55:40
@puck:puck.moepuck comparing with e.g. https://nix-re.pl/ which translates everything to a primop call (a + b -> __add a b; a.b.c or d -> __selectOr a [ "b" "c" ] d) 20:56:27
@puck:puck.moepuckall this to say i don't think there's much of a subset of Nix that would let you reasonably test performance; the only real-world performance test i can think of is "how well can you evaluate nixpkgs"; which requires .. well, everything21:00:59
@magic_rb:matrix.redalder.orgmagic_rbright, okay, point taken, ig ill have to implement enough to eval nixpkgs to actually get any data21:10:14
@magic_rb:matrix.redalder.orgmagic_rb...21:10:15
@magic_rb:matrix.redalder.orgmagic_rbwell, im not even at a functional VM so uh, thats ways off, currently trying to wrap my head around the STG still21:10:36

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