Niraj Dota developed an Unlimited Time Setting for Over-the-Board Games in the lichess-org/mobile repository, introducing a user-facing UI switch within the OTB configuration bottom sheet. This feature allows players to toggle unlimited or extended play sessions by adjusting the time increment logic, enhancing flexibility for long-form chess games. Niraj implemented the solution using Dart and Flutter, focusing on mobile development and UI design. As part of the work, he refactored time-related classes to improve code readability and maintainability, ensuring future extensibility. The depth of the implementation addressed both user experience and underlying code structure within a focused timeframe.