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Piccolo is an interpreter for the Lua language that is written in Rust with a focus on safe sandboxing and resiliency. The author discusses the history of Piccolo and its unique 'stackless' design, which allows for easier cancellation and pre-emptive concurrency. They also explore the challenges of implementing Rust coroutines into GC-Arena and Piccolo, and the core idea of systems programming languages. The goal for Piccolo is to create a version of Lua that can fit into any program and has minimal assumptions. The author also expresses a preference for Lua over other systems programming languages in certain cases.

kyju.org

Rust Coroutines, Lua Coroutines, and Snarfing