feat: nb add battery max charge option and quick change for it

hosts/nb/configuration.nix

@@ -5,7 +5,8 @@
 { config, lib, pkgs, ... }:
 let
   impermanence = builtins.fetchTarball "https://github.com/nix-community/impermanence/archive/master.tar.gz";
-in {
+in
+{
   nixpkgs.config.allowUnfree = true;
   nixpkgs.config.allowBroken = true;
 
@@ -30,6 +31,7 @@ in {
       ./modules/ollama.nix
       ./modules/qdrant.nix
       ./modules/battery-brightness.nix
+      ./modules/charge-control.nix
       ./modules/suspend-fixes.nix
 
       ./cachix.nix
@@ -90,10 +92,10 @@ in {
   # Disable irqbalance to save battery (not critical for laptop workloads)
   services.irqbalance.enable = false;
 
-  swapDevices = [ {
+  swapDevices = [{
     device = "/swap/swapfile";
     size = 96 * 1024; # Size is in megabytes (96GB for full hibernation with 92GB RAM)
-  } ];
+  }];
 
   # Memory tuning for 92GB RAM
   boot.kernel.sysctl = {
@@ -171,12 +173,12 @@ in {
   sops.age.sshKeyPaths = [ "/etc/ssh/ssh_host_ed25519_key" ];
   sops.defaultSopsFile = ./secrets.yaml;
 
-  sops.secrets.epicenter_vpn_ca = {};
+  sops.secrets.epicenter_vpn_ca = { };
-  sops.secrets.epicenter_vpn_cert = {};
+  sops.secrets.epicenter_vpn_cert = { };
-  sops.secrets.epicenter_vpn_key = {};
+  sops.secrets.epicenter_vpn_key = { };
-  sops.secrets.wg_private_key = {};
+  sops.secrets.wg_private_key = { };
-  sops.secrets.wg_preshared_key = {};
+  sops.secrets.wg_preshared_key = { };
-  sops.secrets.wg-cloonar-key = {};
+  sops.secrets.wg-cloonar-key = { };
 
   virtualisation.docker.enable = true;
   services.flatpak.enable = true;
@@ -206,7 +208,7 @@ in {
     extraGroups = [ "wheel" "disk" "video" "audio" "mysql" "docker" "vboxusers" "networkmanager" "onepassword" "onepassword-cli" "dialout" ]; # Enable ‘sudo’ for the user.
   };
 
-  users.groups.dominik = {};
+  users.groups.dominik = { };
 
   environment.systemPackages = with pkgs; [
     alsa-utils

hosts/nb/modules/charge-control.nix

@@ -0,0 +1,91 @@
+{ pkgs, ... }:
+let
+  charge-limit-apply = pkgs.writeShellScriptBin "charge-limit-apply" ''
+    if [ "$1" != "80" ] && [ "$1" != "100" ]; then
+      echo "Usage: charge-limit-apply <80|100>" >&2
+      exit 1
+    fi
+    ${pkgs.fw-ectool}/bin/ectool fwchargelimit "$1"
+    echo "$1" > /run/fw-charge-limit
+    chmod 644 /run/fw-charge-limit
+  '';
+
+  charge-limit-menu = pkgs.writeShellScriptBin "charge-limit-menu" ''
+    choice=$(printf "80%%\n100%%" | ${pkgs.wofi}/bin/wofi --dmenu --prompt "Charge limit")
+    case "$choice" in
+      "80%") /run/wrappers/bin/sudo ${charge-limit-apply}/bin/charge-limit-apply 80 ;;
+      "100%") /run/wrappers/bin/sudo ${charge-limit-apply}/bin/charge-limit-apply 100 ;;
+    esac
+  '';
+
+  waybar-battery = pkgs.writeShellScriptBin "waybar-battery" ''
+    charging_icons=("󰢜" "󰂆" "󰂇" "󰂈" "󰢝" "󰂉" "󰢞" "󰂊" "󰂋" "󰂅")
+    default_icons=("󰁺" "󰁻" "󰁼" "󰁽" "󰁾" "󰁿" "󰂀" "󰂁" "󰂂" "󰁹")
+
+    bat_path=$(echo /sys/class/power_supply/BAT*)
+    capacity=$(cat "$bat_path/capacity" 2>/dev/null || echo 0)
+    status=$(cat "$bat_path/status" 2>/dev/null || echo "Unknown")
+    limit=$(cat /run/fw-charge-limit 2>/dev/null || echo 80)
+
+    # Select icon based on capacity (10 icons, index 0-9)
+    idx=$(( capacity / 11 ))
+    if [ "$idx" -gt 9 ]; then idx=9; fi
+
+    if [ "$status" = "Charging" ]; then
+      icon="''${charging_icons[$idx]}"
+    else
+      icon="''${default_icons[$idx]}"
+    fi
+
+    # Determine CSS class
+    class=""
+    if [ "$capacity" -le 15 ]; then
+      class="critical"
+    elif [ "$capacity" -le 30 ]; then
+      class="warning"
+    elif [ "$capacity" -ge 95 ]; then
+      class="good"
+    fi
+
+    tooltip="Battery: ''${capacity}% [''${status}]\nCharge limit: ''${limit}%"
+
+    ${pkgs.jq}/bin/jq -cn \
+      --arg text "$icon ''${capacity}% (''${limit}%)" \
+      --arg tooltip "$tooltip" \
+      --arg class "$class" \
+      '{text: $text, tooltip: $tooltip, class: $class}'
+  '';
+in
+{
+  environment.systemPackages = [
+    pkgs.fw-ectool
+    charge-limit-apply
+    charge-limit-menu
+    waybar-battery
+  ];
+
+  security.sudo.extraRules = [
+    {
+      users = [ "dominik" ];
+      commands = [
+        {
+          command = "${charge-limit-apply}/bin/charge-limit-apply";
+          options = [ "NOPASSWD" ];
+        }
+      ];
+    }
+  ];
+
+  systemd.services.fw-charge-limit = {
+    description = "Set Framework charge limit on boot";
+    wantedBy = [ "multi-user.target" ];
+    serviceConfig = {
+      Type = "oneshot";
+      ExecStart = "${pkgs.writeShellScript "fw-charge-limit-init" ''
+        ${pkgs.fw-ectool}/bin/ectool fwchargelimit 80
+        echo 80 > /run/fw-charge-limit
+        chmod 644 /run/fw-charge-limit
+      ''}";
+    };
+  };
+}

hosts/nb/modules/desktop/default.nix

@@ -13,9 +13,10 @@ let
       sessionsFontSize = 24;
       usersFontSize = 32;
     };
-    variants = ["qt5"];
+    variants = [ "qt5" ];
   };
-in {
+in
+{
   imports = [
     ../sway/sway.nix
     ../sway/launcher-cleanup.nix
@@ -173,9 +174,6 @@ in {
     DISK_IDLE_SECS_ON_AC = 0;
     DISK_IDLE_SECS_ON_BAT = 2;
 
-    # Battery charge thresholds (Framework 13 recommendation)
-    START_CHARGE_THRESH_BAT0 = 60;
-    STOP_CHARGE_THRESH_BAT0 = 80;
   };
 
   boot.plymouth = {

hosts/nb/modules/sway/waybar.conf

@@ -33,7 +33,7 @@
     "cpu",
     "custom/left-arrow-light",
     "custom/left-arrow-dark",
-    "battery",
+    "custom/battery",
     "custom/left-arrow-light",
     "custom/left-arrow-dark",
     "disk",
@@ -109,39 +109,11 @@
     "interval": 5,
     "format": " {usage:2}%"
   },
-  "battery": {
+  "custom/battery": {
-    "states": {
+    "exec": "waybar-battery",
-      "good": 95,
+    "return-type": "json",
-      "warning": 30,
+    "interval": 10,
-      "critical": 15
+    "on-click": "charge-limit-menu"
-    },
-    "format": "{icon} {capacity}%",
-    "format-icons": {
-      "charging": [
-        "󰢜",
-        "󰂆",
-        "󰂇",
-        "󰂈",
-        "󰢝",
-        "󰂉",
-        "󰢞",
-        "󰂊",
-        "󰂋",
-        "󰂅"
-      ],
-      "default": [
-        "󰁺",
-        "󰁻",
-        "󰁼",
-        "󰁽",
-        "󰁾",
-        "󰁿",
-        "󰂀",
-        "󰂁",
-        "󰂂",
-        "󰁹"
-      ]
-    },
   },
   "disk": {
     "interval": 5,

hosts/nb/modules/sway/waybar.css

@@ -28,7 +28,7 @@ window#waybar {
 #pulseaudio,
 #memory,
 #cpu,
-#battery,
+#custom-battery,
 #disk,
 #tray {
 	background: #252525;
@@ -62,7 +62,7 @@ window#waybar {
 #cpu {
 	color: #bd93f9;
 }
-#battery {
+#custom-battery {
 	color: #f1fa8c;
 }
 #disk {
@@ -77,7 +77,7 @@ window#waybar {
 #pulseaudio,
 #memory,
 #cpu,
-#battery,
+#custom-battery,
 #disk {
 	padding: 0 10px;
   padding-left: 5px;