stuff

home-manager/modules/niri/scripts.nix

@@ -0,0 +1,31 @@
+{ pkgs, ... }:
+let
+  brightnessScript = pkgs.writeShellScriptBin "brightness" ''
+    BUS=10
+    STEP=5
+    MIN=0
+    MAX=100
+    OSD_FILE="/tmp/brightness_osd_level"
+
+    current=$(ddcutil --bus=$BUS getvcp 10 | grep -oP "current value\\s*=\\s*\\K[0-9]+")
+    new=$current
+
+    if [[ "$1" == "up" ]]; then
+      new=$((current + STEP))
+      (( new > MAX )) && new=$MAX
+    elif [[ "$1" == "down" ]]; then
+      new=$((current - STEP))
+      (( new < MIN )) && new=$MIN
+    else
+      exit 1
+    fi
+
+    ddcutil --bus=$BUS setvcp 10 "$new"
+    echo "$new" > "$OSD_FILE"
+  '';
+in
+{
+  home.packages = [
+    brightnessScript
+  ];
+}