noctalia

hosts/x1g13/home.nix

@@ -1,6 +1,27 @@
 {
+
+  services.kanshi = {
+    enable = true;
+    systemdTarget = "labwc-session.target";
+    settings = [
+      {
+        profile = {
+          name = "x1g13";
+          outputs = [
+            {
+              criteria = "eDP-1";
+              status = "enable";
+              position = "0,0";
+              scale = 1.5;
+            }
+          ];
+        };
+      }
+    ];
+  };
+
   programs.niri.settings.outputs."eDP-1" = {
-    scale = 1.2;
+    scale = 1.5;
     position = {
       x = 0;
       y = 0;

modules/applications/labwc/home.nix

@@ -151,6 +151,10 @@ in
     # Pull in graphical-session.target so Home Manager services such as
     # portals, Vicinae, and the idle manager follow the labwc session.
     systemd.extraCommands = [
+      # Clear the previous session's target first. Otherwise services such as
+      # kanshi that lose their Wayland connection on logout remain in a
+      # failed/start-limit-hit state and are not started for the next login.
+      "${lib.getExe' pkgs.systemd "systemctl"} --user stop labwc-session.target"
       "${lib.getExe' pkgs.systemd "systemctl"} --user --no-block start labwc-session.target"
     ];
   };

modules/applications/noctalia/codexbar.nix

@@ -0,0 +1,44 @@
+{ lib, pkgs }:
+let
+  version = "0.46.0";
+  architecture =
+    if pkgs.stdenv.hostPlatform.isx86_64 then
+      "x86_64"
+    else if pkgs.stdenv.hostPlatform.isAarch64 then
+      "aarch64"
+    else
+      throw "CodexBar CLI is only packaged for x86_64-linux and aarch64-linux";
+  hash =
+    {
+      x86_64 = "sha256-yMrOpu1WIv2sGVgvY9qf2XCoX2AXMSqR2b8bQDRU6os=";
+      aarch64 = "sha256-pCp3NOlxFN6zeH67W04WGSPbUae+ktzR5vEunWqu00g=";
+    }
+    .${architecture};
+in
+pkgs.stdenvNoCC.mkDerivation {
+  pname = "codexbar";
+  inherit version;
+
+  src = pkgs.fetchurl {
+    url = "https://github.com/steipete/CodexBar/releases/download/v${version}/CodexBarCLI-v${version}-linux-musl-${architecture}.tar.gz";
+    inherit hash;
+  };
+
+  dontUnpack = true;
+
+  installPhase = ''
+    tar -xzf "$src" CodexBarCLI
+    install -Dm755 CodexBarCLI "$out/bin/codexbar"
+  '';
+
+  meta = {
+    description = "CLI for CodexBar usage data";
+    homepage = "https://github.com/steipete/CodexBar";
+    license = lib.licenses.mit;
+    mainProgram = "codexbar";
+    platforms = [
+      "aarch64-linux"
+      "x86_64-linux"
+    ];
+  };
+}

modules/applications/noctalia/home.nix

@@ -5,6 +5,14 @@
   ...
 }:
 let
+  codexbar = import ./codexbar.nix { inherit lib pkgs; };
+  codexbarUsagePlugin = pkgs.runCommand "noctalia-codexbar-usage-plugin" { } ''
+    mkdir -p "$out"
+    cp ${./plugins/codexbar-usage/plugin.toml} "$out/plugin.toml"
+    substitute ${./plugins/codexbar-usage/usage.luau} "$out/usage.luau" \
+      --replace-fail "@codexbarPath@" "${lib.getExe codexbar}"
+  '';
+
   wallpapers = pkgs.fetchFromGitHub {
     owner = "moons-14";
     repo = "wallpapers";
@@ -21,6 +29,14 @@ let
     "cpu-graph"
     "ram"
   ];
+  labwcSystemWidgets = [
+    "network"
+    "bluetooth"
+    "network-connection"
+    "spacer"
+    "cpu"
+    "ram"
+  ];
   centerWidgets = [
     "app-launcher"
     "workspaces"
@@ -45,7 +61,13 @@ let
       margin_ends = 0;
       start = [ "taskbar" ];
       center = centerWidgets;
-      end = systemWidgets ++ [ "spacer" ] ++ endWidgets;
+      end =
+        labwcSystemWidgets
+        ++ [
+          "moons/codexbar-usage:usage"
+          "spacer"
+        ]
+        ++ endWidgets;
     };
 
     dock = {
@@ -56,6 +78,7 @@ let
       network.show_label = false;
       taskbar = {
         type = "taskbar";
+        scale = 1.5;
         pinned = [
           "org.gnome.Nautilus"
           "org.gnome.TextEditor"
@@ -64,10 +87,14 @@ let
           "code"
           "dev.zed.Zed"
           "codex"
+          "vesktop"
         ];
         group_by_workspace = false;
         show_window_title = false;
+        pinned_opacity = 0.60;
+        inactive_opacity = 1.0;
       };
+      input-volume.show_label = false;
     };
   };
 
@@ -97,7 +124,10 @@ let
   };
 in
 {
-  home.packages = [ pkgs.networkmanagerapplet ];
+  home.packages = [
+    codexbar
+    pkgs.networkmanagerapplet
+  ];
 
   home.file = {
     ".face".source = ../../../images/avatar.jpg;
@@ -107,6 +137,11 @@ in
     };
   };
 
+  xdg.dataFile."noctalia/plugins/codexbar-usage" = {
+    source = codexbarUsagePlugin;
+    recursive = true;
+  };
+
   programs.noctalia = {
     enable = true;
 
@@ -141,11 +176,16 @@ in
         center = centerWidgets;
         end = [
           "media"
+          "moons/codexbar-usage:usage"
           "spacer"
         ]
         ++ endWidgets;
       };
 
+      plugins = {
+        enabled = [ "moons/codexbar-usage" ];
+      };
+
       widget = {
         app-launcher = {
           type = "custom_button";

modules/applications/noctalia/plugins/codexbar-usage/plugin.toml

@@ -0,0 +1,13 @@
+id = "moons/codexbar-usage"
+name = "CodexBar Usage"
+version = "1.0.0"
+plugin_api = 3
+min_noctalia = "5.0.0"
+author = "moons"
+license = "MIT"
+icon = "ai"
+description = "Codex usage limits from the CodexBar CLI."
+
+[[widget]]
+id = "usage"
+entry = "usage.luau"

modules/applications/noctalia/plugins/codexbar-usage/usage.luau

@@ -0,0 +1,145 @@
+local codexbar = "@codexbarPath@"
+local refreshIntervalMs = 60000
+local usagePage = "https://chatgpt.com/codex/settings/usage"
+
+local refreshing = false
+
+local function percent(value)
+    if type(value) ~= "number" then
+        return "—"
+    end
+    return tostring(math.floor(value + 0.5)) .. "%"
+end
+
+local function oneDecimal(value)
+    local tenths = math.floor(value * 10 + 0.5)
+    return tostring(math.floor(tenths / 10)) .. "." .. tostring(tenths % 10)
+end
+
+local function unixSeconds(isoTime)
+    if type(isoTime) ~= "string" then
+        return nil
+    end
+
+    local year, month, day, hour, minute, second = string.match(
+        isoTime,
+        "^(%d%d%d%d)%-(%d%d)%-(%d%d)T(%d%d):(%d%d):(%d%d)"
+    )
+    if year == nil then
+        return nil
+    end
+
+    year = tonumber(year)
+    month = tonumber(month)
+    day = tonumber(day)
+    hour = tonumber(hour)
+    minute = tonumber(minute)
+    second = tonumber(second)
+
+    if month <= 2 then
+        year = year - 1
+        month = month + 12
+    end
+
+    local era = math.floor(year / 400)
+    local yearOfEra = year - era * 400
+    local dayOfYear = math.floor((153 * (month - 3) + 2) / 5) + day - 1
+    local dayOfEra = yearOfEra * 365 + math.floor(yearOfEra / 4) - math.floor(yearOfEra / 100) + dayOfYear
+    local daysSinceEpoch = era * 146097 + dayOfEra - 719468
+
+    return daysSinceEpoch * 86400 + hour * 3600 + minute * 60 + second
+end
+
+local function resetRemaining(resetsAt, resetDescription)
+    local resetSeconds = unixSeconds(resetsAt)
+    if resetSeconds == nil then
+        return resetDescription or "—"
+    end
+
+    local remaining = math.max(0, resetSeconds - math.floor(noctalia.nowMs() / 1000))
+    local days = math.floor(remaining / 86400)
+    if days > 0 then
+        return tostring(days) .. "d" .. oneDecimal((remaining - days * 86400) / 3600) .. "h"
+    end
+
+    return oneDecimal(remaining / 3600) .. "h"
+end
+
+local function showError(message)
+    barWidget.setGlyph("alert-circle")
+    barWidget.setText("Codex: unavailable")
+    barWidget.setTooltip("CodexBar: " .. message)
+end
+
+local function showUsage(item)
+    local usage = item.usage or {}
+    local primary = usage.primary or {}
+    local secondary = usage.secondary or {}
+    local primaryReset = resetRemaining(primary.resetsAt, primary.resetDescription)
+    local secondaryReset = resetRemaining(secondary.resetsAt, secondary.resetDescription)
+
+    barWidget.setGlyph("ai")
+    barWidget.setText(
+        "5h:"
+            .. percent(primary.usedPercent)
+            .. "("
+            .. primaryReset
+            .. ") - 7d:"
+            .. percent(secondary.usedPercent)
+            .. "("
+            .. secondaryReset
+            .. ")"
+    )
+    barWidget.setTooltip({
+        { "5-hour usage", percent(primary.usedPercent) .. " · resets in " .. primaryReset },
+        { "Weekly usage", percent(secondary.usedPercent) .. " · resets in " .. secondaryReset },
+        { "Click", "Open Codex usage settings" },
+    })
+end
+
+local function refresh()
+    if refreshing then
+        return
+    end
+
+    refreshing = true
+    noctalia.runAsync(
+        codexbar .. " usage --provider codex --source cli --format json",
+        function(result)
+            refreshing = false
+
+            if result.exitCode ~= 0 then
+                showError(result.stderr ~= "" and result.stderr or "codexbar exited " .. tostring(result.exitCode))
+                return
+            end
+
+            local data, error = noctalia.json.decode(result.stdout)
+            if data == nil then
+                showError("invalid CodexBar JSON: " .. (error or "unknown error"))
+                return
+            end
+
+            local item = data[1] or data
+            if item.error ~= nil then
+                showError(item.error.message or "CodexBar returned an error")
+                return
+            end
+
+            showUsage(item)
+        end,
+        30000
+    )
+end
+
+function update()
+    noctalia.setUpdateInterval(refreshIntervalMs)
+    refresh()
+end
+
+function onClick()
+    noctalia.runAsync("xdg-open " .. usagePage)
+end
+
+function onRightClick()
+    refresh()
+end