During December 2025, Soldatov focused on backend development for the cookiecutter/cookiecutter-django repository, addressing a critical issue in Django startup error handling. He improved the visibility of ImportError exceptions by modifying the UsersConfig.ready method, ensuring that startup errors are no longer suppressed and can be surfaced promptly for developers. This change streamlines debugging and reduces time spent diagnosing startup failures. Soldatov also enhanced maintainability by adding clear documentation to the ready() method, clarifying its intended use. His work leveraged Python and Django, demonstrating a targeted approach to stability and developer experience, with depth in diagnosing and resolving framework-level issues.