.Dd January 8, 2021
.Dt DWL 1
.Os
.Sh NAME
.Nm dwl
.Nd dwm for Wayland
.Sh SYNOPSIS
.Nm
.Op Fl v
.Op Fl s Ar startup command
.Sh DESCRIPTION
.Nm
is a Wayland compositor based on wlroots.
It is intended to fill the same space in the Wayland world that
.Nm dwm
does for X11.
.Pp
When given the
.Fl v
option,
.Nm
writes its name and version to standard error and exits unsuccessfully.
.Pp
When given the
.Fl s
option,
.Nm
starts a shell process running
.Ar command
when starting.
When stopping, it sends
.Dv SIGTERM
to the child process and waits for it to exit.
.Pp
Users are encouraged to customize
.Nm
by editing the sources, in particular
.Pa config.h .
The default key bindings are as follows:
.Bl -tag -width 20n -offset indent -compact
.It Mod-[1-9]
Show only all windows with a tag.
.It Mod-Ctrl-[1-9]
Show all windows with a tag.
.It Mod-Shift-[1-9]
Move window to a single tag.
.It Mod-Ctrl-Shift-[1-9]
Toggle tag for window.
.It Mod-p
Spawn
.Nm bemenu-run .
.It Mod-Shift-Return
Spawn
.Nm alacritty .
.It Mod-[jk]
Move focus down/up the stack.
.It Mod-[id]
Increase/decrease number of windows in master area.
.It Mod-[hl]
Decrease/increase master area.
.It Mod-Return
Move window on top of stack or switch top of stack with second window.
.It Mod-Tab
Show only all windows with previous tag.
.It Mod-Shift-c
Close window.
.It Mod-t
Switch to tabbed layout.
.It Mod-f
Switch to floating layout.
.It Mod-m
Switch to monocle layout.
.It Mod-Space
Switch to previous layout.
.It Mod-Shift-Space
Toggle floating state of window.
.It Mod-e
Toggle fullscreen state of window.
.It Mod-0
Show all windows.
.It Mod-Shift-0
Set all tags for window.
.It Mod-,
Move focus to previous monitor.
.It Mod-.
Move focus to next monitor.
.It Mod-Shift-,
Move window to previous monitor.
.It Mod-Shift-.
Move window to next monitor.
.It Mod-Shift-q
Quit
.Nm .
.El
These might differ depending on your keyboard layout.
.Sh ENVIRONMENT
These environment variables are used by
.Nm :
.Bl -tag -width XDG_RUNTIME_DIR
.It Ev XDG_RUNTIME_DIR
A directory where temporary user files, such as the Wayland socket,
are stored.
.It Ev XDG_CONFIG_DIR
A directory containung configuration of various programs and
libraries, including libxkbcommon.
.It Ev DISPLAY , WAYLAND_DISPLAY , WAYLAND_SOCKET
Tell how to connect to an underlying X11 or Wayland server.
.It Ev WLR_*
Various variables specific to wlroots.
.It Ev XKB_* , XLOCALEDIR , XCOMPOSEFILE
Various variables specific to libxkbcommon.
.It Ev XCURSOR_PATH
List of directories to search for XCursor themes in.
.It Ev HOME
A directory where there are always dear files there for you.
Waiting for you to clean them up.
.El
.Pp
These are set by
.Nm :
.Bl -tag -width WAYLAND_DISPLAY
.It Ev WAYLAND_DISPLAY
Tell how to connect to
.Nm .
.It Ev DISPLAY
If using
.Nm Xwayland ,
tell how to connect to the
.Nm Xwayland
server.
.El
.Sh EXAMPLES
Start
.Nm
with s6 in the background:
.Dl dwl -s 's6-svscan <&-'
.Sh SEE ALSO
.Xr alacritty 1 ,
.Xr bemenu 1 ,
.Xr dwm 1 ,
.Xr xkeyboard-config 7
.Sh CAVEATS
The child process's standard input is connected with a pipe to
.Nm .
If the child process neither reads from the pipe nor closes its
standard input,
.Nm
will freeze after a while due to it blocking when writing to the full
pipe buffer.
.Sh BUGS
All of them.