Worked on stability and typing improvements across open source projects, focusing on bug fixes in Python and Lua environments. In the lewis6991/neovim repository, addressed a critical overflow issue affecting 32-bit systems by adjusting the MAX_TIMEOUT constant, which prevented negative wait values and improved system reliability. Later, contributed to the ndmitchell/typeshed repository by refining the return type of GenericAlias.__origin__ for parameterized type aliases, incorporating TypeAliasType to enhance static type checking accuracy. Demonstrated expertise in Python typing, type hinting, and system programming, delivering targeted, low-risk fixes that improved platform stability and type analysis for downstream tooling.