How can I load env variable from /etc/profile.d for my graphic session?

[Gigas002]

I'm using hyprland as compositor, here're my configs:

/etc/greetd/config.toml

[terminal]
# The VT to run the greeter on. Can be "next", "current" or a number
# designating the VT.
vt = 1

# The default session, also known as the greeter.
[default_session]

# `agreety` is the bundled agetty/login-lookalike. You can replace `/bin/sh`
# with whatever you want started, such as `sway`.
command = "Hyprland --config /etc/greetd/hyprland.conf"

# The user to run the command as. The privileges this user must have depends
# on the greeter. A graphical greeter may for example require the user to be
# in the `video` group.
user = "greeter"

/etc/greeetd/hyprland.conf

# env = XDG_SESSION_TYPE,wayland

exec-once = regreet; hyprctl dispatch exit
# exec-once = /etc/profile.d/wayland-env.sh

input {
    kb_layout = us
    numlock_by_default = true
}

misc {
    vrr = 0
    disable_hyprland_logo = true
    disable_splash_rendering = true
    force_default_wallpaper = 0
}

/etc/greetd/regreet.toml

# SPDX-FileCopyrightText: 2022 Harish Rajagopal <harish.rajagopals@gmail.com>
#
# SPDX-License-Identifier: GPL-3.0-or-later

[background]
# Path to the background image
path = "/usr/share/backgrounds/greet.png"

# How the background image covers the screen if the aspect ratio doesn't match
# Available values: "Fill", "Contain", "Cover", "ScaleDown"
# Refer to: https://docs.gtk.org/gtk4/enum.ContentFit.html
# NOTE: This is ignored if ReGreet isn't compiled with GTK v4.8 support.
fit = "Fill"

# The entries defined in this section will be passed to the session as environment variables when it is started
[env]

[GTK]
# Whether to use the dark theme
application_prefer_dark_theme = true

# Cursor theme name
cursor_theme_name = "Sweet-cursors"

# Font name and size
font_name = "CaskaydiaCove Nerd Font Mono 16"

# Icon theme name
icon_theme_name = "Sweet-Rainbow"

# GTK theme name
theme_name = "Sweet"

[commands]
# The command used to reboot the system
reboot = [ "systemctl", "reboot" ]

# The command used to shut down the system
poweroff = [ "systemctl", "poweroff" ]

And the script I want to run:

/etc/profile.d/wayland-env.sh

if [ "$XDG_SESSION_TYPE" = "wayland" ]; then
  # GTK wayland backend: https://wiki.archlinux.org/title/Wayland#GTK
  export GDK_BACKEND=wayland

  # Qt HidhDPI settings: https://doc.qt.io/qt-6/highdpi.html
  # export QT_AUTO_SCREEN_SCALE_FACTOR=1
  # export QT_SCALE_FACTOR=1

  # Qt wayland backend: https://wiki.archlinux.org/title/Wayland#Qt
  export QT_QPA_PLATFORM="wayland;xcb"

  # KDE File Picker by default: https://bbs.archlinux.org/viewtopic.php?id=253132
  export GTK_USE_PORTAL=1

  # Firefox wayland backend: https://wiki.archlinux.org/title/Firefox#Wayland
  export MOZ_ENABLE_WAYLAND=1

  # Nvidia-specific settings: https://wiki.archlinux.org/title/Wayland#Requirements
  # export GBM_BACKEND=nvidia-drm
  # export __GLX_VENDOR_LIBRARY_NAME=nvidia

  # Force session to run on Nvidia GPU on laptops with
  # prime render offload, see: https://wiki.archlinux.org/title/PRIME#Configure_applications_to_render_using_GPU
  # export __NV_PRIME_RENDER_OFFLOAD=1
  # Additional prime settings: https://wiki.archlinux.org/title/PRIME#Wayland-specific_configuration
  # export __VK_LAYER_NV_optimus=NVIDIA_only
  
  # SDL2 wayland backend: https://wiki.archlinux.org/title/Wayland#SDL2
  export SDL_VIDEODRIVER="wayland,x11"

  # Try to set electron backend: https://wiki.archlinux.org/title/Wayland#Electron
  export ELECTRON_OZONE_PLATFORM_HINT="wayland"
fi

When I log in graphic session, I try to check any of these variables in terminal, e.g. echo $ELECTRON_OZONE_PLATFORM_HINT and get nothing

[rharish101]

If you want to run this script, you have the following options:

• See if the DE/WM/compositor that you launch has an option to run this script, perhaps by editing a config file
• Edit the command in the session file for your DE/WM/compositor to run this script
• Manually add these environment variables to the ReGreet config file in the [env] section (do note that this will load all the environment variables for all DEs/WMs/compositors).

[Gigas002]

Thank you, that is indeed sounds very logical