I built Rewind: A zero-dependency TIME-TRAVEL DEBUGGER with live in-browser hot-patching

说明与用途

Rewind 是一个通用的时间旅行调试器，帮助开发者在 Python、Node.js、Go 等多种语言环境中快速定位并修复错误，无需外部依赖。

问题

Debugging modern applications is painful due to reliance on console logs or forward stepping, which can miss the exact mutation causing a crash.

结果

Rewind enables developers to quickly identify and fix bugs across multiple runtimes without adding dependencies or slowing execution.

工作流

• 1. Install Rewind via pip or clone the repo
• 2. Run a script or command with rewind run script.py or rewind exec "node server.js"
• 3. When execution ends or an exception occurs, Rewind launches a local cockpit at http://localhost:8765
• 4. Use the timeline scrubber to navigate to the problematic state
• 5. Inspect variable mutations and state diffs
• 6. Edit code in the browser sandbox and replay to verify the fix
• 7. Apply the patch to disk if desired

证据

Rewind was designed with three foundational principles: Universal Multi-Runtime Tracing, Sub-Microsecond Circular State Diffing, and In-Browser Time Scrubber & Live Hot-Patching.

来源

Rewind launches a local interactive cockpit at http://localhost:8765 when execution finishes or hits an unhandled exception.

来源