Hi HN,

I built rewindtty, a small tool in C that lets you record a terminal session and later replay it, using a simple JSON log format that includes:

- timestamp - command (user input) - output (stdout) - stderr

It works like this:

- rewindtty record session.json # Runs a shell, records the session - rewindtty replay session.json # Replays it step by step

Under the hood:

- Uses fork() to manage the pseudo-terminal - Captures stdout/stderr with timestamps - Stores everything in structured JSON for easy analysis, replay or transformation

Why I made this: I wanted a minimal tool to track terminal interactions — for debugging, documentation, and reproducibility — without relying on heavier tools or external formats.

It’s still early, but the core works and I’d love feedback or suggestions.

GitHub: https://github.com/debba/rewindtty

You have scratched a long persistent itch. Good work!

And I love that you used c. Nothing against rust, or (ahem) “go”, but it’s good to see you doing something in c!

How does it deal with escape sequences? Does it just record them verbatim?