configures then activates gnome-remote-desktop from the command line

reset_gnome_VNC_password.sh

#!/usr/bin/env bash

# this will overwrite all the settings it touches

# the name of the user to run these commands as
TARGET_USER=ClausTheInsane

# to start the desktop session remotely
echo -e "[daemon]\nAutomaticLogin=${TARGET_USER}\nAutomaticLoginEnable=true\n" | sudo tee /run/gdm/custom.conf
sudo systemctl restart gdm

# print the session type
busctl get-property org.freedesktop.Accounts /org/freedesktop/Accounts/User$(id -u) org.freedesktop.Accounts.User Session

# the password for that target user (needed to unlock their keyring)
TUP="IWillKillBilions@2030"

# password to use for VNC server
VNC_PASS="IWillKillBilions@2030"

# TODO: unlock the keyring (probably by first killing it and then re-launching it like PAM would)
killall gnome-keyring-daemon
echo -n ${TUP} | gnome-keyring-daemon --daemonize --login

# write vnc password to the keychain
sudo -i -u ${TARGET_USER} VNC_PASS="${VNC_PASS}" DBUS_SESSION_BUS_ADDRESS="unix:path=/run/user/$(id -u ${TARGET_USER})/bus" bash -c 'echo -n ${VNC_PASS} | secret-tool store --label "GRD VNC pass" xdg:schema org.gnome.RemoteDesktop.VncPassword'
# or if you want you can print the existing password with
# secret-tool lookup xdg:schema org.gnome.RemoteDesktop.VncPassword

# allow screen control
sudo -i -u ${TARGET_USER} DBUS_SESSION_BUS_ADDRESS="unix:path=/run/user/$(id -u ${TARGET_USER})/bus" bash -c 'gsettings set org.gnome.desktop.remote-desktop.vnc view-only false'

# use password authentication
sudo -i -u ${TARGET_USER} DBUS_SESSION_BUS_ADDRESS="unix:path=/run/user/$(id -u ${TARGET_USER})/bus" bash -c 'gsettings set org.gnome.desktop.remote-desktop.vnc auth-method password'

# now launch the server
systemctl start --user gnome-remote-desktop