better looking building for mutli OS

Overlord-Server/public/assets/build.js

@@ -81,16 +81,62 @@ if (rawServerListCheckbox && serverUrlInput) {
 
 const persistenceCheckbox = document.querySelector('input[name="enable-persistence"]');
 const persistenceMethodContainer = document.getElementById("persistence-method-container");
-if (persistenceCheckbox && persistenceMethodContainer) {
-  persistenceCheckbox.addEventListener("change", () => {
-    if (persistenceCheckbox.checked) {
-      persistenceMethodContainer.classList.remove("hidden");
-    } else {
-      persistenceMethodContainer.classList.add("hidden");
-    }
-  });
+const persistenceEmptyState = document.getElementById("persistence-empty-state");
+const persistenceWindowsSettings = document.getElementById("persistence-windows-settings");
+const persistenceLinuxSettings = document.getElementById("persistence-linux-settings");
+const persistenceMacSettings = document.getElementById("persistence-macos-settings");
+const platformInputs = document.querySelectorAll('input[name="platform"]');
+
+function getSelectedPlatformFamilies() {
+  const selectedPlatforms = Array.from(
+    document.querySelectorAll('input[name="platform"]:checked'),
+  ).map((el) => el.value);
+
+  return {
+    windows: selectedPlatforms.some((platform) => platform.startsWith("windows-")),
+    linux: selectedPlatforms.some((platform) => platform.startsWith("linux-")),
+    darwin: selectedPlatforms.some((platform) => platform.startsWith("darwin-")),
+  };
 }
 
+function updatePersistenceSettingsVisibility() {
+  if (!persistenceMethodContainer) return;
+
+  const persistenceEnabled = !!persistenceCheckbox?.checked;
+  if (!persistenceEnabled) {
+    persistenceMethodContainer.classList.add("hidden");
+    return;
+  }
+
+  persistenceMethodContainer.classList.remove("hidden");
+
+  const families = getSelectedPlatformFamilies();
+  const hasSupportedFamily = families.windows || families.linux || families.darwin;
+
+  if (persistenceWindowsSettings) {
+    persistenceWindowsSettings.classList.toggle("hidden", !families.windows);
+  }
+  if (persistenceLinuxSettings) {
+    persistenceLinuxSettings.classList.toggle("hidden", !families.linux);
+  }
+  if (persistenceMacSettings) {
+    persistenceMacSettings.classList.toggle("hidden", !families.darwin);
+  }
+  if (persistenceEmptyState) {
+    persistenceEmptyState.classList.toggle("hidden", hasSupportedFamily);
+  }
+}
+
+if (persistenceCheckbox && persistenceMethodContainer) {
+  persistenceCheckbox.addEventListener("change", updatePersistenceSettingsVisibility);
+}
+
+platformInputs.forEach((input) => {
+  input.addEventListener("change", updatePersistenceSettingsVisibility);
+});
+
+updatePersistenceSettingsVisibility();
+
 const obfuscateCheckbox = document.querySelector('input[name="obfuscate"]');
 const garbleSettingsContainer = document.getElementById("garble-settings-container");
 if (obfuscateCheckbox && garbleSettingsContainer) {
@@ -265,7 +311,10 @@ form?.addEventListener("submit", async (e) => {
   const enablePersistence = form.querySelector(
     'input[name="enable-persistence"]',
   ).checked;
-  const persistenceMethod = form.querySelector('#persistence-method')?.value || 'startup';
+  const hasWindowsTarget = platforms.some((platform) => platform.startsWith("windows-"));
+  const persistenceMethod = hasWindowsTarget
+    ? form.querySelector("#persistence-method")?.value || "startup"
+    : undefined;
   const hideConsole = form.querySelector(
     'input[name="hide-console"]',
   ).checked;
@@ -293,7 +342,7 @@ form?.addEventListener("submit", async (e) => {
     disableCgo,
     obfuscate,
     enablePersistence,
-    persistenceMethod: enablePersistence ? persistenceMethod : undefined,
+    persistenceMethod: enablePersistence && hasWindowsTarget ? persistenceMethod : undefined,
     hideConsole,
     noPrinting,
     outputName: outputNameVal || undefined,

Overlord-Server/public/build.html

@@ -339,15 +339,23 @@
                       >
                     </div>
                   </label>
-                  <!-- Persistence method selector – Windows only, shown when persistence is enabled -->
                   <div
                     id="persistence-method-container"
-                    class="hidden pl-3 border-l-2 border-orange-500/40"
+                    class="hidden pl-3 border-l-2 border-orange-500/40 space-y-3"
                   >
+                    <div id="persistence-empty-state" class="hidden text-xs text-slate-500">
+                      No supported persistence targets selected. Select Windows, Linux, or macOS targets to configure persistence.
+                    </div>
+
+                    <div id="persistence-windows-settings" class="hidden" data-persistence-os="windows">
+                      <div class="text-xs font-semibold text-slate-300 mb-2 flex items-center gap-2">
+                        <i class="fa-brands fa-windows text-blue-400"></i>
+                        Windows Persistence Settings
+                      </div>
                       <label
                         class="block text-xs font-medium text-slate-400 mb-1"
                         for="persistence-method"
-                      >Windows Persistence Method</label
+                        >Persistence Method</label
                       >
                       <select
                         id="persistence-method"
@@ -359,10 +367,28 @@
                         <option value="taskscheduler">Task Scheduler (ONLOGON, requires admin)</option>
                         <option value="wmi">WMI Subscription (requires admin)</option>
                       </select>
-                    <p class="text-xs text-slate-500 mt-1">
-                      Method used on Windows; other platforms use their native mechanism
+                    </div>
+
+                    <div id="persistence-linux-settings" class="hidden" data-persistence-os="linux">
+                      <div class="text-xs font-semibold text-slate-300 mb-1 flex items-center gap-2">
+                        <i class="fa-brands fa-linux text-amber-400"></i>
+                        Linux Persistence Settings
+                      </div>
+                      <p class="text-xs text-slate-500">
+                        Uses user-level <code>systemd</code> service when available; falls back to desktop autostart.
                       </p>
                     </div>
+
+                    <div id="persistence-macos-settings" class="hidden" data-persistence-os="darwin">
+                      <div class="text-xs font-semibold text-slate-300 mb-1 flex items-center gap-2">
+                        <i class="fa-brands fa-apple text-slate-200"></i>
+                        macOS Persistence Settings
+                      </div>
+                      <p class="text-xs text-slate-500">
+                        Uses <code>LaunchAgents</code> (<code>com.overlord.agent.plist</code>) for login persistence.
+                      </p>
+                    </div>
+                  </div>
                   <label
                     class="flex items-center gap-2 p-3 bg-slate-800/60 border border-slate-700 rounded-lg cursor-pointer hover:border-emerald-500 transition-colors"
                     title="Windows only: build without a console window"