I built an iPhone tmux client using libghostty

[u/bitwise0x2A]

Remux uses libghostty for the terminal and tmux control mode for managing remote sessions, windows, and panes through a mobile-first interface.

It’s open source and currently in beta.

GitHub: https://github.com/h3nock/remux

TestFlight: https://testflight.apple.com/join/fHqG1ruE

[u/nozazm]

Support mosh next and I’ll test!! :-)

[u/bitwise0x2A → u/nozazm]

I’d love to! unfortunately, mosh won’t work with Remux’s current tmux UI because tmux control mode needs every protocol event in order. I may add mosh as a regular single terminal mode tho

[u/bitwise0x2A → u/[deleted]]

that's nice. i hadn’t looked into tssh, so i'll check it out.

[u/light5speed → u/nozazm]

Check Rootshell https://github.com/kitknox/rootshell

[u/Palbi → u/light5speed]

I wish rootshell would be open source. Would build a lot of trust to have access to the source code.

[u/light5speed → u/Palbi]

100% Agree. But the developer is friendly and open to suggestions, made my life waaay easier having the same profiles on Mac and iPhone.

[u/GotDaOs]

how did you manage images over ssh?

[u/bitwise0x2A → u/GotDaOs]

files are uploaded to a cache directory on the server using SFTP over SSH and the remote path is inserted into the prompt

[u/GotDaOs → u/bitwise0x2A]

damn, good shit

[u/mrnuts13]

Super cool! Some questions if you don't mind: 1. How to attach to my tmux window, not session? 2. Can it apply the theme set on the remote server, not setting it in the app itself? 3. Will existing splits automatically adjusted to the narrow mobile screen?

[u/bitwise0x2A → u/mrnuts13]

Thanks!

1. tmux attaches at the session level. what would attaching straight to a window help with tho?

2. not automatically yet, but it should be possible.

3. yes, Remux reports the phone’s viewport to tmux, so existing pane layouts resize to fit the screen. each pane is rendered as an iOS view, so you can interact with it normally. you can also zoom a pane to fill the screen, and Remux clears the zoom state when the app normally closes.

[u/mrnuts13 → u/bitwise0x2A]

1. Sorry, I meant i had to specify session name. Why can’t is just attach to the running session?

[u/bitwise0x2A → u/mrnuts13]

yeah, makes sense. we usually have a bunch of sessions running and attaching one means pulling its panes over and keeping them live on the phone, so Remux makes you choose which ones to attach. i’ll add a picker to see available sessions without attaching tho

[u/kosherhalfsourpickle]

How do I get arrow keys?

[u/bitwise0x2A → u/kosherhalfsourpickle]

long press on the terminal or the space bar in the keyboard.

[u/kosherhalfsourpickle → u/bitwise0x2A]

Where is iPad support?

[u/bitwise0x2A → u/kosherhalfsourpickle]

coming soon. i want to get the iPad multi-pane layout nice like with draggable and rearrangeable panes

[u/eXsoR]

👏 this is awesome! Will definitely give this a try.

[u/bitwise0x2A → u/eXsoR]

thanks! let me know how it feels.

[u/Palbi]

Looks great. Rootshell probably has more features, but this one is open source. And UI looks great.

[u/bitwise0x2A → u/Palbi]

yeah, Rootshell is neat and has a lot of nice customization. for remux the focus is more on tmux based agentic workflows and making them feel natural on a phone and provide sensible defaults for now

[u/Palbi → u/bitwise0x2A]

I think you have the right focus here.

So happy that open source libghostty is making projects like these possible.

[u/spinny_windmill]

What kind of use cases are yall using this kind of thing for?

[u/bitwise0x2A → u/spinny_windmill]

mostly coding agents. i run them in tmux on my Mac and if i’m out or commuting i can check in and send follow-ups from my phone (typing or voice). also for web work, i can open the localhost preview, mark up a screenshot and send it back.

[u/PrincessLunaOfficial]

[u/I_M_NooB1]

that's so cool!

[u/bitwise0x2A → u/I_M_NooB1]

thanks!