SwellJoe on Show HN: Rmux – A programmable terminal multiplexer with a Playwright-style SDK

Comment on Show HN: Rmux – A programmable terminal multiplexer with a Playwright-style SDK

It's not clear to me what this does that tmux doesn't? Agents can already interact with tmux, so what does this provide?

gobdovan 3mo

  I think it's trying to be like a code-first/API alternative to Tmux. So instead of:

``` tmux new-session -d -s a

tmux send-keys -t a 'npm test' Enter

sleep 2

tmux capture-pane -p -t a ```

  you'd do something like:

``` pane.send_text("npm test\n").await?;

pane.wait_for_text("Tests passed").await?;

let snapshot = pane.snapshot().await?; ```

  I don't know why it would be better for agents, maybe the author also works on an LLM agent harness.

shideneyuOP3mo

gobdovan nailed it. The CLI is a drop-in for existing tmux workflows; the SDK eases your flow when you'd otherwise be writing brittle send-keys + sleep + capture loop. But that's just one one of the use cases. rmux should be used to make beautiful TUI, something very dirty to do with tmux. Especially the day you want to do integration testing (playwright style)

gitaarik 3mo

And what are you automating regarding your tmux sessions exactly actually? I use tmux daily, but I never feel the need to do any automation of managing my tmux panes.

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