How can I make Caelestia/Quickshell use my iGPU?

[PolarT-py]

What

Dang these fancy effects (blur) is really eating up GPU resources, so I wanted to make Caelestia use my iGPU instead since I never use it. My iGPU is enabled, and works (confirmed by checking btop and stress testing it), but I have no clue how to make Caelestia actually use the iGPU. I've tried launching caelestia with whether caelestia shell -d or qs -c caelestia and adding DRM_CARD=1 or DRI_PRIME=1 in front, but it always still uses my dGPU. I'm no expert in this stuff and would much appreciate help, thanks! :D

Extra Information:

OS: EndeavourOS
Kernel: Zen 6.17.7
CPU: Intel Core i7 7700k
GPU 1 - dGPU: NVIDIA GeForce GTX 1080 Ti
GPU 2 - iGPU: Intel HD Graphics 630
Caelestia Shell Version: 1.3.2
Quickshell Version: 0.2.1
// Pls tell me if you need additional info

Also something note worthy, in my hyprland environment variables I set these:

env = LIBVA_DRIVER_NAME,nvidia
env = __GLX_VENDOR_LIBRARY_NAME,nvidia

What I'm tryna ultimately do is use my iGPU for only Caelestia and dGPU for everything else.

[nuknes]

Also something note worthy, in my hyprland environment variables I set these:

env = LIBVA_DRIVER_NAME,nvidia
env = __GLX_VENDOR_LIBRARY_NAME,nvidia

comment out or remove those two lines as having them active are effectively causing your entire hyprland session to always prefer nvidia drivers for graphics acceleration

check ls -l /dev/dri/

then edit hypr-vars.conf and assuming your intel iGPU is card0 and nvidia dGPU is card1

env = AQ_DRM_DEVICES,/dev/dri/card0:/dev/dri/card1

[PolarT-py]

Heres what this says:

❯ ls -l /dev/dri/

total 0
drwxr-xr-x  2 root root        120 Nov 29 10:55 by-path
crw-rw----+ 1 root video  226,   0 Nov 29 10:55 card0
crw-rw----+ 1 root video  226,   1 Nov 29 10:55 card1
crw-rw-rw-  1 root render 226, 128 Nov 29 10:55 renderD128
crw-rw-rw-  1 root render 226, 129 Nov 29 10:55 renderD129

Commenting the 2 lines out and adding your one line in environment variables made my system always use the iGPU (Had to move my HDMI cable from GPU to motherboard to see) which isn't really ideal. I'm sorry if I'm not giving enough information or something I'm really not good with this stuff 😭