Implementing faster data structures in Rust and exposing them to BEAM for Elixir: https://blog.discordapp.com/using-rust-to-scale-elixir-for-11-million-concurrent-users-c6f19fc029d3
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A funny side effect of building software in Rust: my machine OOMs much more during development.
I'm not entirely sure why. I think Rust makes it easy to allocate data quickly, and sooner or later you write an infinite loop when coding.
When writing long-lived programs (daemons etc) in Rust, I find myself asking *where* I should put data.
In a GC'd language it's just "I have a string" but Rust forces me to find somewhere to put it.
You do get a performance benefit for this work though.
I've released difftastic 0.63! In this release:
* Better parsing of Elixir, LaTeX, Make, Nix, Rust and YAML
* Better detecting of text encoding, especially on Windows
* Prebuilt musl binaries, so you can run released binaries on older systems!
https://github.com/Wilfred/difftastic/releases/tag/0.63.0