[nevi-me]

> We believe that this is the largest rollout globally of any library written in Rust.

I suppose this is true because there's more phones using WhatsApp than there are say Windows 11 PCs.

Given that WhatsApp uses libsignal, is it safe to assume that they haven't been using the Rust library directly?

[marisen]

WhatsApp doesn't use libsignal, and Android is already pretty Rusty and deployed more than WhatsApp around the world (not just smartphone. Tons of "embedded" use cases also run on custom Android)

[charcircuit]

>deployed more than WhatsApp

If you count old Android versions before Rust was added.

[fabrice_d]

WhatsApp was using libsignal (the C version) when I worked on the KaiOS integration in 2017/2018.

[pjmlp]

Like our gym devices that have a full tablet to run a basic application to control weights, talk about wasting money.

[pjmlp]

If you watch "Microsoft is Getting Rusty: A Review of Successes and Challenges" it appears the whole effort is more on the Azure side, and besides some timid adoption like GDI regions, there is a lukewarm adoption of Rust on Windows side, still pretty much a C and C++ feud.

https://www.youtube.com/watch?v=1VgptLwP588