Soares Chen

Software Engineer @ Informal Systems

Soares is a Rust programmer with a strong passion for functional programming, type theory, and all things related to programming languages. He currently works as a Rust engineer at Informal Systems and has previously worked extensively with Haskell and JavaScript across various companies. Soares is the creator of Context-Generic Programming, a modular programming paradigm for Rust. Additionally, he has developed several open-source projects in the past, including Ferrite, a session type EDSL in Rust, and Casimir, an algebraic effects library for Haskell.

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This edition

How to Stop Fighting with Coherence and Start Writing Context-Generic Trait Impls
November 03 2025 - 12:15 (45 min )

Rust offers a powerful trait system that allows us to write highly polymorphic and reusable code. However, the restrictions of coherence and orphan rules have been a long standing problem and a source of confusion, limiting us from writing trait implementations that are more generic than they could have been.

LEVEL: Advanced

How to Stop Fighting with Coherence and Start Writing Context-Generic Trait Impls

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