February 2026 monthly summary: Across the li​vebook-dev/livebook and elixir-lang/expert repositories, delivered reliability and robustness enhancements to Elixir task supervision paths. In Livebook, resolved runtime task supervision stability issues by ensuring Task.Supervisor.start_child results are captured and handled, preventing silent failures and improving runtime stability. In Expert, improved initialization robustness by validating start_child return values and adding logging for failure cases, facilitating faster debugging and maintainability. Commit references include 56ecd4775f34f876fec940f07570ad19d6520404 and de979ceabaa108a3e5eb43a7675f13ac913ac76b. Impact: reduced runtime errors, better error visibility, and easier incident triage; business value: higher uptime, more predictable task orchestration, and simplified maintenance. Technologies/skills: Elixir, Task.Supervisor, explicit return value checks, structured error handling, and logging.