Comment by tosh | Hacker News Reader

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Comment by tosh | Hacker News Reader

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Discord feels very responsive and lightweight. Anyone knows what their stack looks like?

They have some fantastic dev blogs[1]. Their backend seems to mostly be elixir.

1: https://blog.discordapp.com/tagged/engineering

Elixir for the backend as others have said, and the frontend is React on Electron.

Elixir for the backend, they have around 5 million concurrent users.

Electron

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