During December 2025, this developer enhanced the mendix/web-widgets repository by delivering Calendar Time Slot Customization, enabling users to define custom time increments and slots within day and week calendar views. The work involved updating CalendarPropsBuilder and related components to support new step and timeslots properties, improving scheduling precision and user experience. Using React and TypeScript, the developer also addressed a regression affecting view transitions, ensuring stable rendering when switching between day, week, and month modes. The changes included cohesive refactoring of calendar logic and thorough documentation of new props, contributing to improved maintainability and clarity for future front end development.