Show HN: Persistent Jupyter kernel execution and live output streaming in VSCode

Tithon is a new tool that keeps Jupyter kernel sessions alive independently of the client, allowing users to close their editor or lose connection without losing their work or output history. It addresses a common problem where kernel sessions die when the client disconnects by moving the source of truth from the client to the host, and it also offers advantages like cleaner Python files instead of JSON notebooks and better image handling for AI agents. The project is currently in alpha and works on Unix-like systems with VSCode integration.