Roc

• Apr 12, 2026 Roc: Functional Programming Without the Complexity Tax

  Roc is a fast, friendly, functional language built around a radical idea: no I/O primitives in the language itself. Instead, platforms provide effects, and your code stays pure. Here's a deep look at what that means in practice — the type system, tag unions, error handling, tooling, and where Roc is worth serious attention today.