Arch linux VNC server setup

config

session=lxqt
geometry=1920x1080
localhost # comment this out to allow connections from anywhere
alwaysshared

instructions.sh

sudo pacman -S tigervnc
vncpasswd
vim /etc/tigervnc/vncserver.users
vim ~/.vnc/config
sudo systemctl start vncserver@:1

# ufw allow 5901
# vncvierwer

vncserver.users

:1=your_username

echo ":1:USER"  >> /etc/tigervnc/vncserver.users

This is incorrect. It should be:

echo ":1=$USER"  >> /etc/tigervnc/vncserver.users

$USER will be expanded to your username.

Also, output redirection isn't performed by sudo. So sudo cat won't work.
What works for me:

sudo bash -c "cat <<EOF > $HOME/.vnc/config
session=\$XDG_SESSION_DESKTOP
geometry=1920x1080
localhost=no
alwaysshared
EOF"

as always, ymmv