During February 2026, Archer focused on backend development in Go, addressing a critical bug in the charmbracelet/crush repository. He corrected the configuration logic for the Small Model Provider, ensuring that Anthropic thinking mode could be enabled as intended for small-model deployments. By passing the appropriate small model configuration to the provider builder and updating the evaluation logic, Archer prevented false negatives and stabilized the deployment path for this feature. His targeted fix improved reliability for teams relying on Anthropic thinking mode, demonstrating careful attention to configuration management and backend stability within a Go-based codebase over the course of the month.