[didibus]

Neat, I didn't know about Discord. Whatsapp I thought it was all Erlang, are you sure about Elixir being prevalent there?

I wonder if it's only a few teams handling major events at Discord, or if that's truly their default backend service language all their backend teams uses. If so, maybe I should look at their job listings :p

[thomasfortes]

From the discord blog posts it seems that elixir powers the chat system, with rust and python as the other two main languages in their stack.

As for whatsapp, they are mainly a erlang shop and yesterday they open sourced a type checker for erlang:

https://github.com/WhatsApp/eqwalizer

[jononomo]

Since Elixir just compiles into BEAM byte code, like Erlang does, can this type checker be used on Elixir code too?

[jolux]

I think they use Go too.

[thomasfortes]

They moved from Go to Rust.

https://discord.com/blog/why-discord-is-switching-from-go-to...