Multiplexing: Config file on remote

[jirpok]

What Operating System(s) are you running on?

Linux X11

Which Wayland compositor or X11 Window manager(s) are you using?

Gnome 42.9

WezTerm version

20240203-110809-5046fc22

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Hey everyone,

I think I understand the basics of multiplexing in WezTerm by now, but I still don't get if/when I need a config file on the remote or what it is supposed to do. I've read a few issue comments mentioning it (most of them were a couple of years old), then there's this note on the Configuration > Colors & Appearance page:

If you are using multiplexing with ssh or tls domains, the color scheme is controlled by the config file on the multiplexer server side. This is because the palette is an attribute of the terminal emulation and that state lives on the multiplexer server.

So I've tried putting a simple wezterm.lua in ~/.config/wezterm/ on the remote (just foreground, background colors), killed wezterm-mux-server and reconnected using wezterm connect. Then checked with the following to see if it's being loaded:

$ echo $WEZTERM_CONFIG_FILE
/home/jiri/.config/wezterm/wezterm.lua

However the changes in appearance are being ignored. What am I missing?

I've also tried with a theme, and occasionally there were errors complaining about the theme being missing, which is fine I guess, at least I knew something was going on, but these errors seemed random and not at all displaying with every connection/session.

Another example would be window_close_confirmation = 'NeverPrompt'. It works locally, yet is ignored in the remote window. This might be a bug though, it looks like the client takes over in this case. Found this.