Rachel Fish enhanced the Loop In workflow for the lightning-terminal repository by adding a lastHop parameter to the getLoopInQuote API, enabling users to obtain channel-specific fee estimates for Loop In transactions. This targeted API development in TypeScript focused on improving quote accuracy and user control, allowing for more granular fee optimization. Rachel’s backend work emphasized stability and test coverage, with no major bugs reported during the period. The implementation required careful API design and parameter augmentation, as well as collaboration on related store changes, resulting in a more precise and user-friendly quoting process for channel-specific Lightning Network operations.