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by reil_convnet 1418 days ago
> Erlang because stability.

Maybe because of WhatsApp acquisition ? Some services might still be running in Erlang. Last I heard, Erlang was being replaced by C++.

> Haskell because elitism.

Haxl used to be a project at FaceBook, not sure what Haskell is used for now there.

Thoughts as an outsider. I dont work [neither have worked] at Meta.
3 comments
throwawaymaths 1418 days ago
Iirc the story was fb messenger was written in Erlang, then they rewrote in c++ because of no trust in erlang (I think that was around when fb messenger started sucking with everyone complaining about bugs -- it was better last I used it 4 yrs ago) then ironically they re-acquired Erlang via WhatsApp.

I wonder if they will make that mistake twice

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shirogane86x 1417 days ago
I think Sigma (FB's spam filtering system) is still written in Haskell, but I may be wrong (basing this around internet rumours since I don't work at Meta).
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mdcds 1418 days ago
> Haskell because elitism.

Does anyone know if Simon Marlow is still at Meta and what he works on?

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coderdd 1418 days ago
Glean, at least tangentially?
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