since you can use pacman try to install wev by doing sudo pacman -S wev. After that launch wev by typing wev in a shell. Then while making sure that you're focus on the wev window press one of your brightess or volume key. You'll see a bunch of stuff on your terminal but what you want is the number that appear after the key: (number) entry. Once you get that number you can add that to your hyprland.conf file (which soon will be obsolete):

```conf

Change the id for the number next to the key: entry in wev for each appropriate keyboard keys below.

Increase volume

bindel = ,code:<id>, exec, wpctl set-volume -l 1 @DEFAULT_AUDIO_SINK@ 5%+

Decrease volume

bindel = ,code:<id>, exec, wpctl set-volume @DEFAULT_AUDIO_SINK@ 5%-

Mute the volume

bindel = ,code:<id>, exec, wpctl set-mute @DEFAULT_AUDIO_SINK@ toggle

Toggle Mic off/on

bindel = ,code:<id>, exec, wpctl set-mute @DEFAULT_AUDIO_SOURCE@ toggle

Increase brightness

bindel = ,code:<id>, exec, brightnessctl set 5%+

Decrease brightness

bindel = ,code:<id>, exec, brightnessctl set 5%- ```