Add the waybar scripts.

nix/configuration/roles/waybar/default.nix

@@ -4,14 +4,76 @@
   pkgs,
   ...
 }:
+let
+  waybar_available_memory =
+    (pkgs.writeScriptBin "waybar_custom_available_memory" (
+      builtins.readFile ./files/waybar_scripts/waybar_available_memory_linux.bash
+    )).overrideAttrs
+      (old: {
+        buildCommand = "${old.buildCommand}\n patchShebangs $out";
 
+      });
+  waybar_battery =
+    (pkgs.writeScriptBin "waybar_custom_battery" (
+      builtins.readFile ./files/waybar_scripts/waybar_battery_linux.bash
+    )).overrideAttrs
+      (old: {
+        buildCommand = "${old.buildCommand}\n patchShebangs $out";
+
+      });
+  waybar_clock =
+    (pkgs.writeScriptBin "waybar_custom_clock" (
+      builtins.readFile ./files/waybar_scripts/waybar_custom_clock.py
+    )).overrideAttrs
+      (old: {
+        buildCommand = "${old.buildCommand}\n patchShebangs $out";
+
+      });
+  waybar_night_mode =
+    (pkgs.writeScriptBin "waybar_night_mode" (
+      builtins.readFile ./files/waybar_scripts/waybar_night_mode.bash
+    )).overrideAttrs
+      (old: {
+        buildCommand = "${old.buildCommand}\n patchShebangs $out";
+
+      });
+  waybar_sound =
+    (pkgs.writeScriptBin "waybar_custom_sound" (
+      builtins.readFile ./files/waybar_scripts/waybar_sound_linux.bash
+    )).overrideAttrs
+      (old: {
+        buildCommand = "${old.buildCommand}\n patchShebangs $out";
+
+      });
+  waybar_temperature =
+    (pkgs.writeScriptBin "waybar_custom_temperature" (
+      builtins.readFile ./files/waybar_scripts/waybar_temperature_linux.bash
+    )).overrideAttrs
+      (old: {
+        buildCommand = "${old.buildCommand}\n patchShebangs $out";
+
+      });
+in
 {
   imports = [ ];
 
   environment.systemPackages = with pkgs; [
     waybar
+    waybar_available_memory
+    waybar_battery
+    waybar_clock
+    waybar_night_mode
+    waybar_sound
+    waybar_temperature
+    python3 # for clock TODO python should not be in the system packages, maybe switch to a venv? ref https://nixos.wiki/wiki/Python
+    bc # for temperature and sound
+    jq # for memory, battery, sound, night mode, and temperature
+    upower # for battery
+    wlsunset # for night mode
   ];
 
+  services.upower.enable = true; # for battery
+
   home-manager.users.talexander =
     { pkgs, ... }:
     {