waybar: add waybar module

modules/waybar/default.nix

@@ -0,0 +1,13 @@
+{
+  config,
+  lib,
+  pkgs,
+  doctrine,
+  ...
+}:
+doctrine.lib.mkModule {
+  inherit config;
+  name = "waybar";
+  hm = ./hm.nix;
+  options = ./options.nix;
+}

modules/waybar/hm.nix

@@ -0,0 +1,207 @@
+{
+  lib,
+  pkgs,
+  cfg,
+  doctrine,
+  ...
+}:
+with lib; {
+  programs.waybar = {
+    enable = true;
+    settings = {
+      mainBar = {
+        layer = "top";
+        position = "top";
+        height = 20;
+        spacing = 0;
+
+        modules-left = [
+          "sway/workspaces"
+          "sway/mode"
+        ];
+        modules-center = [
+          "clock"
+        ];
+
+        modules-right =
+          [
+            "keyboard-state"
+            "privacy"
+            "idle_inhibitor"
+            "cpu"
+            "memory"
+            "disk"
+            "temperature"
+            "tray"
+          ]
+          ++ lists.optionals cfg.battery [
+            "battery"
+          ];
+        battery = mkIf cfg.battery {
+          format = "{capacity}% {icon}";
+          format-plugged = "{capacity}% 󱐥{icon}";
+          format-icons = ["󰂃" "󰁺" "󰁻" "󰁼" "󰁽" "󰁾" "󰁿" "󰂀" "󰂁" "󰂂" "󰁹"];
+          states = {
+            warning = 20;
+            critical = 10;
+          };
+        };
+        keyboard-state = {
+          capslock = true;
+          format.capslock = "{icon}";
+          format-icons = {
+            locked = "󰘲 ";
+            unlocked = "";
+          };
+        };
+        idle_inhibitor = {
+          format = "{icon}";
+          format-icons = {
+            activated = " ";
+            deactivated = " ";
+          };
+        };
+        tray = {
+          icon-size = 13;
+          spacing = 8;
+        };
+        clock = {
+          interval = 60;
+          format = "{:%A %B %d %Y %H:%M}";
+          tooltip = false;
+        };
+        cpu = {
+          format = " {usage}%";
+          tooltip = false;
+        };
+        memory = {
+          format = " {percentage}% ";
+          tooltip = true;
+          tooltip-format = "{used}/{total}";
+        };
+        disk = {
+          format = " {specific_used:0.0f}/{specific_total:0.0f}";
+          unit = "GiB";
+          tooltip = false;
+        };
+        temperature = {
+          format = " {temperatureC}°C";
+        };
+        privacy = {
+          icon-size = 12;
+        };
+      };
+    };
+    style = ''
+      * {
+        font-family: "${cfg.fontFamily}", monospace;
+        font-size: ${cfg.fontSize};
+        font-weight: 500;
+        border: none;
+        box-shadow: none;
+      }
+
+      /* Entire bar: fully transparent, no border */
+      window#waybar {
+        background: transparent;
+        color: #eaeaea;
+        margin: 0;
+        padding: 0;
+      }
+
+      /* Optional: small edge breathing room (comment out if you want edge-to-edge) */
+      /* window#waybar { margin: 3px 6px 0 6px; } */
+
+      /* Module containers */
+      .modules-left, .modules-center, .modules-right {
+        padding: 0;
+        margin: 0 6px;
+      }
+
+      /* Subtle separators between modules (no boxes) */
+      .modules-left > widget:not(:first-child),
+      .modules-center > widget:not(:first-child),
+      .modules-right > widget:not(:first-child) {
+        margin-left: 12px;
+        padding-left: 12px;
+        border-left: 1px solid rgba(255, 255, 255, 0.08);
+      }
+
+      /* Tightest possible workspaces */
+      #workspaces { padding: 0; margin: 0; }
+      #workspaces button {
+        margin: 0;
+        padding: 0 3px;
+        min-width: 0;
+        border-radius: 0;
+        background: transparent;
+        color: #cfcfcf;
+      }
+      #workspaces button:hover {
+        background: rgba(255, 255, 255, 0.06);
+      }
+      #workspaces button.active,
+      #workspaces button.focused {
+        background: rgba(255, 255, 255, 0.10);
+        color: #ffffff;
+        box-shadow: inset 0 -2px #ffffff;
+      }
+      #workspaces button.urgent {
+        background: rgba(255, 80, 80, 0.25);
+        box-shadow: inset 0 -2px #ff5050;
+      }
+
+      /* Focused window title: single line, no glow */
+      #window {
+        padding: 0 6px;
+        margin: 0;
+        color: #dedede;
+      }
+
+      /* Sway mode indicator: visible only when active, no bloat */
+      #mode {
+        padding: 0 6px;
+        margin: 0;
+        background: rgba(255, 255, 255, 0.10);
+        color: #ffffff;
+        box-shadow: inset 0 -2px #ffffff;
+      }
+
+      /* Status modules — keep them flat and compact */
+      #clock, #battery, #network, #pulseaudio, #backlight, #cpu, #memory, #temperature, #tray {
+        padding: 0 6px;
+        margin: 0;
+        background: transparent;
+        color: #eaeaea;
+      }
+
+      /* States (battery, network, audio) */
+      #battery.charging { color: #27f902; }
+      #battery.warning:not(.charging) { color: #fc8b02; }
+      #battery.critical:not(.charging) { color: #fc0000; }
+
+      #network.disconnected { color: #ffb4b4; }
+      #pulseaudio.muted    { color: #9aa0a6; }
+
+      /* Tray: compress icons */
+      #tray > .passive { opacity: 0.6; }
+      #tray > .needs-attention { opacity: 1; }
+
+      /* Tooltips: clean and readable */
+      tooltip {
+        background: rgba(30, 30, 30, 0.95);
+        border: 1px solid rgba(255, 255, 255, 0.08);
+        color: #eaeaea;
+        padding: 6px 8px;
+      }
+
+      /* Remove any leftover borders around everything */
+      #custom-*, #idle_inhibitor, #privacy, #bluetooth {
+        border: none;
+        background: transparent;
+        margin: 0;
+        padding: 0 6px;
+      }
+    '';
+  };
+}

modules/waybar/options.nix

@@ -0,0 +1,23 @@
+{lib, ...}:
+with lib.types; {
+  hm = {
+    battery = lib.mkOption {
+      type = bool;
+      default = false;
+      description = ''
+        `true` to display battery info
+      '';
+    };
+    fontFamily = lib.mkOption {
+      type = str;
+      example = "JetBrainsMono Nerd Font";
+      description = ''
+        needs to be a nerdfont
+      '';
+    };
+    fontSize = lib.mkOption {
+      type = str;
+      default = "12px";
+    };
+  };
+}