[cosn]

Brex CTO here. I completely agree with you, the issue isn't that we expect something in return. When you invest in a new language community, it's not about expecting something in return, you're investing in its growth. We've sponsored several core language projects and maintainers, and have open sourced many libraries, and we did it so that the ecosystem gets more fuel to develop and grow.

But that also doesn't mean we never evaluate what makes most sense for us as we continue growing ourselves. We have >400 engineers at Brex, so many things internally have had to evolve over the years, including our decision to build things in different languages (we now additionally support Go, Kotlin, Python & TypeScript, each for specific domains).

Even as we write more backend services in Kotlin, Elixir will continue existing for a long time, and we're continuing to work close with the broader community.

[numair]

I appreciate the reply. I think you have good intentions. If you’re going to leave the Elixir world, it would be good to open source whatever you can on the way out.