d8888 888 888
      d88888 888 888
     d88P888 888 888
    d88P 888 888 888888 888  888 888  888
   d88P  888 888 888    888  888 `Y8bd8P'    +--------------+
  d88P   888 888 888    888  888   X88K     /  Alt         /
 d8888888888 888 Y88b.  Y88b 888 .d8""8b.  /         tux  /
d88P     888 888  "Y888  "Y88888 888  888 +--------------+

---

Altux

Hold the Alt key as your tmux prefix

Press Alt+c to create a window, Alt+d to detach. Alt+% to split, etc. All other native tmux keybindings are alsso ssupported

Install

Manual

mkdir -p ~/.config/tmux
curl -fLo ~/.config/tmux/altux.conf https://raw.githubusercontent.com/eduardofuncao/altux/main/altux.conf

Then in your tmux.conf:

source-file ~/.config/tmux/altux.conf

TPM

Add to your tmux.conf:

set -g @plugin 'eduardofuncao/altux'

Press prefix + I to install.

NixOS

programs.tmux = {
  enable = true;
  plugins = [
    {
      plugin = pkgs.tmuxPlugins.mkTmuxPlugin {
        pluginName = "altux";
        version = "0.1.0-beta";
        src = pkgs.fetchFromGitHub {
          owner = "eduardofuncao";
          repo = "altux";
          rev = "main";
          hash = "";  # first build fails, replace with correct hash
        };
      };
    }
  ];
};

Bindings

All bindings use the root table (bind -n). These do not interefere with your set prefix.

Panes

Key	Action	Default
M-"	split vertical	C-b "
M-%	split horizontal	C-b %
M-!	break pane	C-b !
M-x	kill pane	C-b x
M-z	zoom/unzoom	C-b z
M-o	next pane	C-b o
M-;	last pane	C-b ;
M-q	show pane numbers	C-b q
M-m	mark pane	C-b m
M-M	unmark pane	C-b M
M-{	swap pane up	C-b {
M-}	swap pane down	C-b }
—	rotate window	C-b C-o (3 keys)
—	rotate window -D	C-b M-o (conflicts M-o)
—	suspend client	C-b C-z (3 keys)
M-h	select pane left	C-b Left
M-j	select pane down	C-b Down
M-k	select pane up	C-b Up
M-l	select pane right	C-b Right
M-Up	resize up 5	C-b C-Up
M-Down	resize down 5	C-b C-Down
M-Left	resize left 5	C-b C-Left
M-Right	resize right 5	C-b C-Right
—	resize 1 cell	C-b C-Arrow (covered by M-Arrow)
—	refresh client (dir)	C-b S-Arrow (too many keys)

Layout

Key	Action	Default
M-Space	next layout	C-b Space
M-E	spread layout	C-b E
—	preset layouts	C-b M-1..7 (conflicts M-1..7)

Windows

Key	Action	Default
M-c	new window	C-b c
M-n	next window	C-b n
M-p	previous window	C-b p
—	next window -a	C-b M-n (3 keys)
—	prev window -a	C-b M-p (3 keys)
M-&	kill window (confirm)	C-b &
M-,	rename window	C-b ,
M-.	move window	C-b .
M-w	window tree	C-b w
M-f	find window	C-b f
M-'	select window by index	C-b '
M-0–M-9	select window N	C-b 0–C-b 9

Sessions

Key	Action	Default
M-s	session tree	C-b s
M-$	rename session	C-b $
M-d	detach	C-b d
M-D	choose client	C-b D
M-r	refresh client	C-b r
M-L	switch to last session	C-b L
M-(	previous session	C-b (
M-)	next session	C-b )

Copy / scrollback

Key	Action	Default
M-Enter	copy mode	C-b [
M-]	paste	C-b ]
M-=	choose buffer	C-b =
M-#	list buffers	C-b #
M--	delete buffer	C-b -
M-PageUp	copy mode (scrolled up)	C-b PPage

Misc

Key	Action	Default
M-:	command prompt	C-b :
M-?	list keys	C-b ?
M-/	describe key	C-b /
M-~	message log	C-b ~
M-i	window info	C-b i
M-t	clock	C-b t
M-C	customize mode	C-b C
M-Delete	refresh client (clear)	C-b DC

Conflicts

These Alt keys are swallowed by tmux and won't reach your shell:

High impact — M-c, M-d, M-f, M-Arrows (word/paragraph navigation in readline)

Medium — M-l, M-n, M-p, M-x

Low — M-h, M-j, M-k, M-t, M-Enter

All Alt+symbol keys (M-!, M-", M-#, etc.) are safe — rarely used in shells.