Cian focused on stability and clarity improvements across the gleam-lang/stdlib and gleam repositories, addressing two critical bugs during the month. They enhanced the stdlib documentation by clarifying the usage of the to_precision function, removing misleading guidance about labelled arguments to ensure accurate developer reference. In the gleam compiler, Cian increased the stacker red zone from 64KiB to 128KiB, mitigating stack overflow risks in deeply nested scenarios with debug symbols enabled. Their work involved Gleam and Rust, emphasizing debugging, documentation, and system programming. These targeted changes improved API clarity, runtime reliability, and the overall developer experience across both libraries.