startw

#!/bin/sh

# Start wayland environment. Similar to startx.
# Alternative to a display manager.
# X11 equivalent: .xinitrc

# Environment variables that are to be set irrespective of the graphical environment are specified in .profile.
# This file is for variables that are specific to sway / wayland.
# That's because we don't want them for example when starting i3.

# To decide which environment variables to set.
# * https://wiki.archlinux.org/index.php/Wayland#GUI_libraries
# * https://github.com/swaywm/sway/wiki/Running-programs-natively-under-Wayland

################   Desktop environment   ################

# Normally set by display/login manager.

export XDG_SESSION_TYPE=wayland
export XDG_CURRENT_DESKTOP=sway

# DISPLAY and WAYLAND_DISPLAY are set by sway. See sway(1).

# TODO: maybe use a small DM like greetd.

################   Qt5   ################

# Qt5 apps will use wayland if XDG_SESSION_TYPE=wayland.
# Individual apps can be forced to use X11 with QT_QPA_PLATFORM=xcb.

# State as of 2020-05-04:
# works with wayland: musescore, meshlab, cloudcompare, octave, scribus, lyx, socnetv, qgis, matplotlib, pyqtgraph.
# use X11 anyway: krita, paraview.
# don't work: virtualbox (segfaults, https://bugs.archlinux.org/task/58761), pymol
# unknown: gnuplot

# export QT_WAYLAND_FORCE_DPI=physical
# export QT_AUTO_SCREEN_SCALE_FACTOR=1

################   GUI libraries   ################

# GT3 apps will use wayland by default.
# Individual apps can be forced to use X11 with GDK_BACKEND=x11.

# export SDL_VIDEODRIVER=wayland

# GLFW: installed glfw-wayland instead of glfw-x11.

# GLEW: could install glew-wayland instead of glew. But glew-wayland doesn't provide glew.

# I don't have clutter apps.
# export CLUTTER_BACKEND=wayland

# I don't have EFL apps.
# export ECORE_EVAS_ENGINE=wayland_egl
# export ELM_ENGINE=wayland_egl
# export ELM_DISPLAY=wl
# export ELM_ACCEL=opengl

################   Apps   ################

# Force Firefox to use wayland (it would otherwise use XWayland).
export MOZ_ENABLE_WAYLAND=1

# Some Java AWT applications don't display properly under Xwayland without the following.
# That is the case of Gephi.
export _JAVA_AWT_WM_NONREPARENTING=1

# Change default programs from CLI to GUI.
# export TERMINAL="alacritty"
# export BROWSER="firefox"

# Start wayland compositor.
exec sway