round64: Neues Android-Startbildschirm-artiges Design fuer die mobile Ansicht, umschaltbar in den Einstellungen

apps/frontend/src/components/MobileAndroidHome.tsx

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+import { useMemo, useRef, useState } from "react";
+import { Link } from "@tanstack/react-router";
+import { FontAwesomeIcon } from "@fortawesome/react-fontawesome";
+import {
+  faGear,
+  faMagnifyingGlass,
+  faXmark,
+  faClockRotateLeft,
+  faBookmark,
+} from "@fortawesome/free-solid-svg-icons";
+import type { Category, Service, Bookmark, SearchResult } from "@launchpad/shared";
+import { ResultsList, Button } from "@launchpad/ui";
+
+/**
+ * Android-Startbildschirm-artiges alternatives Design für die mobile Ansicht
+ * (siehe Einstellungen -> "Design"). Bewusst als eigenständige Komponente
+ * statt Umbau der bestehenden HomePage: beide Designs bleiben unabhängig
+ * wart- und weiterentwickelbar, HomePage.tsx entscheidet nur, welche der
+ * beiden gerendert wird (siehe dort).
+ *
+ * Signatur-Element: der "Wallpaper"-Hintergrund besteht NICHT aus einem
+ * generischen Farbverlauf, sondern aus den tatsächlichen, in den eigenen
+ * Kategorien hinterlegten Farben (Admin -> Kategorien) - jede Installation
+ * bekommt dadurch ein optisch anderes, zum eigenen Homelab passendes
+ * Hintergrundbild, ganz ohne eigene Bilder hochladen zu müssen.
+ */
+
+const FALLBACK_PALETTE = ["#6366f1", "#a855f7", "#06b6d4", "#f97316"];
+const BLOB_POSITIONS = [
+  { top: "-10%", left: "-15%" },
+  { top: "55%", left: "60%" },
+  { top: "70%", left: "-20%" },
+  { top: "-15%", left: "55%" },
+];
+
+function resolveIconSrc(src: string): string {
+  if (src.startsWith("data:")) return src;
+  return `/api/favicon-proxy?url=${encodeURIComponent(src)}`;
+}
+
+interface TileIconProps {
+  favicon?: string | null;
+  label: string;
+  color?: string | null;
+  size?: "normal" | "small";
+}
+
+/** Ein einzelnes "App-Icon" im Android-Stil: farbiges abgerundetes Quadrat (per Kategorie-Farbe getönt), Favicon mittig. */
+function TileIcon({ favicon, label, color, size = "normal" }: TileIconProps) {
+  const [failed, setFailed] = useState(false);
+  const dimension = size === "small" ? "h-9 w-9" : "h-14 w-14";
+  const rounding = size === "small" ? "rounded-xl" : "rounded-[20px]";
+  const backdrop = color ? `${color}33` : undefined;
+
+  return (
+    <span
+      className={`flex ${dimension} ${rounding} shrink-0 items-center justify-center
+        shadow-[0_2px_10px_rgba(0,0,0,0.18)] ring-1 ring-white/40 backdrop-blur-sm
+        dark:ring-white/10`}
+      style={{ background: backdrop ?? "rgba(255,255,255,0.75)" }}
+    >
+      {favicon && !failed ? (
+        <img
+          src={resolveIconSrc(favicon)}
+          alt=""
+          className={size === "small" ? "h-5 w-5 object-contain" : "h-8 w-8 object-contain"}
+          onError={() => setFailed(true)}
+        />
+      ) : (
+        <span className={`font-semibold text-black/70 ${size === "small" ? "text-xs" : "text-lg"}`}>
+          {label.charAt(0).toUpperCase()}
+        </span>
+      )}
+    </span>
+  );
+}
+
+/** Ordner-Kachel: Mini-2x2-Vorschau der ersten 4 enthaltenen Icons statt eines einzelnen Favicons. */
+function FolderTile({
+  icons,
+  color,
+}: {
+  icons: Array<{ favicon: string | null; label: string }>;
+  color: string | null;
+}) {
+  return (
+    <span
+      className="grid h-14 w-14 shrink-0 grid-cols-2 grid-rows-2 gap-1 rounded-[20px] p-1.5
+        shadow-[0_2px_10px_rgba(0,0,0,0.18)] ring-1 ring-white/40 backdrop-blur-sm dark:ring-white/10"
+      style={{ background: color ? `${color}33` : "rgba(255,255,255,0.6)" }}
+    >
+      {Array.from({ length: 4 }).map((_, i) => {
+        const item = icons[i];
+        return (
+          <span
+            key={i}
+            className="flex items-center justify-center overflow-hidden rounded-md bg-white/70 dark:bg-white/10"
+          >
+            {item?.favicon ? (
+              <img src={resolveIconSrc(item.favicon)} alt="" className="h-full w-full object-contain p-0.5" />
+            ) : item ? (
+              <span className="text-[8px] font-semibold text-black/50">{item.label.charAt(0).toUpperCase()}</span>
+            ) : null}
+          </span>
+        );
+      })}
+    </span>
+  );
+}
+
+type OpenTarget = { url: string; id: string; kind: "service" | "bookmark" };
+
+interface MinimalVisitItem {
+  id: string;
+  url: string;
+  displayName: string;
+  favicon: string | null;
+  kind?: "service" | "bookmark";
+}
+
+export interface MobileAndroidHomeProps {
+  services: Service[];
+  bookmarks: Bookmark[];
+  categories: Category[];
+  categoryColors: Record<string, string>;
+  folderMode: "folders" | "scroll";
+  allSearchItems: SearchResult[];
+  recentVisits: MinimalVisitItem[];
+  readLaterItems: Array<{ id: string; url: string; displayName: string; favicon: string | null }>;
+  onOpen: (item: OpenTarget) => void;
+  onToggleFavorite: (item: SearchResult) => void;
+  onAddReadLater: (url: string) => void;
+  isOnline: boolean;
+}
+
+export function MobileAndroidHome({
+  services,
+  bookmarks,
+  categories,
+  categoryColors,
+  folderMode,
+  allSearchItems,
+  recentVisits,
+  readLaterItems,
+  onOpen,
+  onToggleFavorite,
+  onAddReadLater,
+  isOnline,
+}: MobileAndroidHomeProps) {
+  const [searchOpen, setSearchOpen] = useState(false);
+  const [query, setQuery] = useState("");
+  const [selectedIndex, setSelectedIndex] = useState(0);
+  const [openFolder, setOpenFolder] = useState<string | null>(null);
+  const [readLaterUrl, setReadLaterUrl] = useState("");
+  const searchInputRef = useRef<HTMLInputElement>(null);
+
+  const palette = useMemo(() => {
+    const fromCategories = (categories ?? [])
+      .map((c) => c.color)
+      .filter((c): c is string => Boolean(c));
+    const unique = Array.from(new Set(fromCategories));
+    return unique.length > 0 ? unique.slice(0, 4) : FALLBACK_PALETTE;
+  }, [categories]);
+
+  const visibleServices = useMemo(() => services.filter((s) => s.visible), [services]);
+
+  const grouped = useMemo(() => {
+    const byCategory = new Map<string, Array<Service | Bookmark>>();
+    const ungrouped: Array<Service | Bookmark> = [];
+    for (const item of [...visibleServices, ...bookmarks]) {
+      if (item.category) {
+        const list = byCategory.get(item.category);
+        if (list) list.push(item);
+        else byCategory.set(item.category, [item]);
+      } else {
+        ungrouped.push(item);
+      }
+    }
+    return { byCategory, ungrouped };
+  }, [visibleServices, bookmarks]);
+
+  const favorites = useMemo(
+    () => [...visibleServices, ...bookmarks].filter((i) => i.favorite).slice(0, 6),
+    [visibleServices, bookmarks]
+  );
+
+  const itemToOpenTarget = (item: Service | Bookmark): OpenTarget => ({
+    url: item.url,
+    id: item.id,
+    kind: "deviceId" in item ? "service" : "bookmark",
+  });
+
+  const searchResults = useMemo(() => {
+    if (query.trim().length === 0) return [];
+    const q = query.toLowerCase();
+    return allSearchItems
+      .filter((i) => i.kind !== "device")
+      .filter(
+        (i) =>
+          i.displayName.toLowerCase().includes(q) ||
+          i.alias?.some((a) => a.toLowerCase().includes(q))
+      )
+      .slice(0, 30);
+  }, [query, allSearchItems]);
+
+  const closeSearch = () => {
+    setSearchOpen(false);
+    setQuery("");
+  };
+
+  const toMinimalItem = (item: Service | Bookmark): MinimalVisitItem => ({
+    id: item.id,
+    url: item.url,
+    displayName: item.displayName,
+    favicon: item.favicon,
+    kind: "deviceId" in item ? "service" : "bookmark",
+  });
+
+  const openFolderData =
+    openFolder === "__recent__"
+      ? { title: "Zuletzt besucht", items: recentVisits }
+      : openFolder === "__readlater__"
+        ? { title: "Später lesen", items: null }
+        : openFolder
+          ? { title: openFolder, items: (grouped.byCategory.get(openFolder) ?? []).map(toMinimalItem) }
+          : null;
+
+  return (
+    <div className="relative min-h-dvh overflow-hidden bg-neutral-100 dark:bg-neutral-950">
+      {/* Wallpaper: aus den eigenen Kategorie-Farben gebaut, siehe Kommentar oben an der Datei. */}
+      <div className="pointer-events-none fixed inset-0 overflow-hidden">
+        {palette.map((color, i) => (
+          <div
+            key={i}
+            className="absolute h-[60vmax] w-[60vmax] rounded-full opacity-25
+              motion-safe:animate-drift dark:opacity-30"
+            style={{
+              background: color,
+              filter: "blur(60px)",
+              top: BLOB_POSITIONS[i % BLOB_POSITIONS.length].top,
+              left: BLOB_POSITIONS[i % BLOB_POSITIONS.length].left,
+              animationDelay: `${i * 4}s`,
+            }}
+          />
+        ))}
+        <div className="absolute inset-0 bg-white/50 dark:bg-black/55" />
+      </div>
+
+      {/* Suchleiste: fest oben, immer sichtbar (auch beim Scrollen) - explizit gewünscht. */}
+      <div className="sticky top-0 z-20 flex items-center gap-2 px-4 pb-3 pt-[calc(env(safe-area-inset-top)+0.75rem)]">
+        <button
+          type="button"
+          onClick={() => {
+            setSearchOpen(true);
+            setTimeout(() => searchInputRef.current?.focus(), 0);
+          }}
+          className="flex flex-1 items-center gap-3 rounded-full border border-white/40 bg-white/70
+            px-4 py-3 text-left shadow-lg backdrop-blur-xl dark:border-white/10 dark:bg-neutral-900/70"
+        >
+          <FontAwesomeIcon icon={faMagnifyingGlass} className="text-black/40 dark:text-white/40" />
+          <span className="text-sm text-black/40 dark:text-white/40">Dienst oder Lesezeichen suchen …</span>
+        </button>
+        <Link
+          to="/admin"
+          aria-label="Adminbereich öffnen"
+          className="flex h-11 w-11 shrink-0 items-center justify-center rounded-full border
+            border-white/40 bg-white/70 text-black/60 shadow-lg backdrop-blur-xl
+            dark:border-white/10 dark:bg-neutral-900/70 dark:text-white/60"
+        >
+          <FontAwesomeIcon icon={faGear} />
+        </Link>
+      </div>
+
+      {/* Haupt-Raster */}
+      <div className="px-4 pb-32 pt-2">
+        {favorites.length === 0 && grouped.ungrouped.length === 0 && grouped.byCategory.size === 0 ? (
+          <p className="mt-10 text-center text-sm text-black/40 dark:text-white/40">
+            Noch nichts angelegt. Füge Dienste oder Lesezeichen im Adminbereich hinzu.
+          </p>
+        ) : (
+          <div className="grid grid-cols-4 gap-x-3 gap-y-5">
+            {/* Zuletzt besucht / Später lesen als feste "Ordner" ganz vorne */}
+            {recentVisits.length > 0 ? (
+              <button
+                type="button"
+                onClick={() => setOpenFolder("__recent__")}
+                className="flex flex-col items-center gap-1.5"
+              >
+                <span
+                  className="flex h-14 w-14 items-center justify-center rounded-[20px] bg-white/60
+                    text-black/50 shadow-[0_2px_10px_rgba(0,0,0,0.18)] ring-1 ring-white/40
+                    backdrop-blur-sm dark:bg-white/10 dark:text-white/50 dark:ring-white/10"
+                >
+                  <FontAwesomeIcon icon={faClockRotateLeft} />
+                </span>
+                <span className="line-clamp-2 w-full text-center text-[11px] leading-tight text-black/70 dark:text-white/70">
+                  Zuletzt besucht
+                </span>
+              </button>
+            ) : null}
+            <button
+              type="button"
+              onClick={() => setOpenFolder("__readlater__")}
+              className="flex flex-col items-center gap-1.5"
+            >
+              <span
+                className="flex h-14 w-14 items-center justify-center rounded-[20px] bg-white/60
+                  text-black/50 shadow-[0_2px_10px_rgba(0,0,0,0.18)] ring-1 ring-white/40
+                  backdrop-blur-sm dark:bg-white/10 dark:text-white/50 dark:ring-white/10"
+              >
+                <FontAwesomeIcon icon={faBookmark} />
+              </span>
+              <span className="line-clamp-2 w-full text-center text-[11px] leading-tight text-black/70 dark:text-white/70">
+                Später lesen
+              </span>
+            </button>
+
+            {folderMode === "folders" ? (
+              <>
+                {/* Kategorien als antippbare Ordner */}
+                {Array.from(grouped.byCategory.entries()).map(([name, items]) => (
+                  <button
+                    key={name}
+                    type="button"
+                    onClick={() => setOpenFolder(name)}
+                    className="flex flex-col items-center gap-1.5"
+                  >
+                    <FolderTile
+                      icons={items.slice(0, 4).map((i) => ({ favicon: i.favicon, label: i.displayName }))}
+                      color={categoryColors[name] ?? null}
+                    />
+                    <span className="line-clamp-2 w-full text-center text-[11px] leading-tight text-black/70 dark:text-white/70">
+                      {name}
+                    </span>
+                  </button>
+                ))}
+                {/* Dienste/Lesezeichen ohne Kategorie direkt als Icon */}
+                {grouped.ungrouped.map((item) => (
+                  <button
+                    key={item.id}
+                    type="button"
+                    onClick={() => onOpen(itemToOpenTarget(item))}
+                    className="flex flex-col items-center gap-1.5"
+                  >
+                    <TileIcon favicon={item.favicon} label={item.displayName} color={null} />
+                    <span className="line-clamp-2 w-full text-center text-[11px] leading-tight text-black/70 dark:text-white/70">
+                      {item.displayName}
+                    </span>
+                  </button>
+                ))}
+              </>
+            ) : null}
+          </div>
+        )}
+
+        {/* Scroll-Modus: alles auf einer Seite, nach Kategorie gruppiert mit Überschrift statt Ordnern. */}
+        {folderMode === "scroll" ? (
+          <div className="mt-6 flex flex-col gap-6">
+            {Array.from(grouped.byCategory.entries()).map(([name, items]) => (
+              <div key={name}>
+                <div className="mb-2.5 flex items-center gap-2">
+                  <span
+                    className="h-2 w-2 rounded-full"
+                    style={{ background: categoryColors[name] ?? "#a3a3a3" }}
+                  />
+                  <span className="text-xs font-medium uppercase tracking-wide text-black/45 dark:text-white/45">
+                    {name}
+                  </span>
+                </div>
+                <div className="grid grid-cols-4 gap-x-3 gap-y-5">
+                  {items.map((item) => (
+                    <button
+                      key={item.id}
+                      type="button"
+                      onClick={() => onOpen(itemToOpenTarget(item))}
+                      className="flex flex-col items-center gap-1.5"
+                    >
+                      <TileIcon
+                        favicon={item.favicon}
+                        label={item.displayName}
+                        color={categoryColors[name] ?? null}
+                      />
+                      <span className="line-clamp-2 w-full text-center text-[11px] leading-tight text-black/70 dark:text-white/70">
+                        {item.displayName}
+                      </span>
+                    </button>
+                  ))}
+                </div>
+              </div>
+            ))}
+          </div>
+        ) : null}
+      </div>
+
+      {/* Dock: angeheftete Favoriten, immer sichtbar - klassisches Android-Verhalten. */}
+      {favorites.length > 0 ? (
+        <div className="fixed inset-x-0 bottom-0 z-20 flex justify-center px-4 pb-[calc(env(safe-area-inset-bottom)+0.75rem)]">
+          <div
+            className="flex items-center gap-3 rounded-[28px] border border-white/40 bg-white/70 px-4
+              py-3 shadow-xl backdrop-blur-xl dark:border-white/10 dark:bg-neutral-900/70"
+          >
+            {favorites.map((item) => (
+              <button key={item.id} type="button" onClick={() => onOpen(itemToOpenTarget(item))} title={item.displayName}>
+                <TileIcon favicon={item.favicon} label={item.displayName} color={null} size="small" />
+              </button>
+            ))}
+          </div>
+        </div>
+      ) : null}
+
+      {/* Verbindungsstatus: dezenter Punkt statt eigener Fußzeile - dieses Design hat bewusst keinen Platz für eine lange Statuszeile. */}
+      <div
+        title={isOnline ? "Backend verbunden" : "Backend nicht erreichbar"}
+        className={`fixed left-4 top-[calc(env(safe-area-inset-top)+0.1rem)] z-10 h-2 w-2 rounded-full
+          ${isOnline ? "bg-emerald-500" : "bg-red-500"}`}
+      />
+
+      {/* Ordner-Übersicht als Sheet */}
+      {openFolderData ? (
+        <div
+          className="fixed inset-0 z-30 flex items-end justify-center bg-black/40 backdrop-blur-sm sm:items-center"
+          onClick={() => setOpenFolder(null)}
+        >
+          <div
+            onClick={(e) => e.stopPropagation()}
+            className="max-h-[75vh] w-full max-w-md overflow-y-auto rounded-t-3xl border border-white/40
+              bg-white/90 p-5 shadow-2xl backdrop-blur-xl dark:border-white/10 dark:bg-neutral-900/90
+              sm:rounded-3xl"
+          >
+            <div className="mb-4 flex items-center justify-between">
+              <h2 className="text-base font-semibold text-black dark:text-white">{openFolderData.title}</h2>
+              <button
+                type="button"
+                onClick={() => setOpenFolder(null)}
+                aria-label="Schließen"
+                className="flex h-8 w-8 items-center justify-center rounded-full text-black/50
+                  hover:bg-black/5 dark:text-white/50 dark:hover:bg-white/10"
+              >
+                <FontAwesomeIcon icon={faXmark} />
+              </button>
+            </div>
+
+            {openFolder === "__readlater__" ? (
+              <div className="flex flex-col gap-4">
+                <form
+                  onSubmit={(e) => {
+                    e.preventDefault();
+                    if (!readLaterUrl.trim()) return;
+                    onAddReadLater(readLaterUrl.trim());
+                    setReadLaterUrl("");
+                  }}
+                  className="flex gap-2"
+                >
+                  <input
+                    value={readLaterUrl}
+                    onChange={(e) => setReadLaterUrl(e.target.value)}
+                    placeholder="Link einfügen …"
+                    className="flex-1 rounded-xl border border-black/10 bg-white/70 px-3 py-2 text-sm
+                      text-black outline-none placeholder:text-black/30 focus:border-indigo-400/60
+                      dark:border-white/10 dark:bg-white/5 dark:text-white dark:placeholder:text-white/30"
+                  />
+                  <Button type="submit" variant="secondary" size="sm">
+                    Merken
+                  </Button>
+                </form>
+                {readLaterItems.length > 0 ? (
+                  <div className="grid grid-cols-4 gap-x-3 gap-y-5">
+                    {readLaterItems.map((item) => (
+                      <button
+                        key={item.id}
+                        type="button"
+                        onClick={() => onOpen({ url: item.url, id: item.id, kind: "bookmark" })}
+                        className="flex flex-col items-center gap-1.5"
+                      >
+                        <TileIcon favicon={item.favicon} label={item.displayName} color={null} />
+                        <span className="line-clamp-2 w-full text-center text-[11px] leading-tight text-black/70 dark:text-white/70">
+                          {item.displayName}
+                        </span>
+                      </button>
+                    ))}
+                  </div>
+                ) : (
+                  <p className="text-sm text-black/40 dark:text-white/40">Noch nichts gemerkt.</p>
+                )}
+              </div>
+            ) : (
+              <div className="grid grid-cols-4 gap-x-3 gap-y-5">
+                {(openFolderData.items ?? []).map((item) => (
+                  <button
+                    key={item.id}
+                    type="button"
+                    onClick={() => {
+                      onOpen({ url: item.url, id: item.id, kind: item.kind ?? "service" });
+                      setOpenFolder(null);
+                    }}
+                    className="flex flex-col items-center gap-1.5"
+                  >
+                    <TileIcon
+                      favicon={item.favicon}
+                      label={item.displayName}
+                      color={openFolder && openFolder !== "__recent__" ? (categoryColors[openFolder] ?? null) : null}
+                    />
+                    <span className="line-clamp-2 w-full text-center text-[11px] leading-tight text-black/70 dark:text-white/70">
+                      {item.displayName}
+                    </span>
+                  </button>
+                ))}
+              </div>
+            )}
+          </div>
+        </div>
+      ) : null}
+
+      {/* Such-Overlay */}
+      {searchOpen ? (
+        <div className="fixed inset-0 z-40 flex flex-col bg-white/95 backdrop-blur-xl dark:bg-neutral-950/95">
+          <div className="flex items-center gap-2 px-4 pb-3 pt-[calc(env(safe-area-inset-top)+0.75rem)]">
+            <div
+              className="flex flex-1 items-center gap-3 rounded-full border border-black/10 bg-white
+                px-4 py-3 shadow-sm dark:border-white/10 dark:bg-neutral-900"
+            >
+              <FontAwesomeIcon icon={faMagnifyingGlass} className="text-black/40 dark:text-white/40" />
+              <input
+                ref={searchInputRef}
+                value={query}
+                onChange={(e) => {
+                  setQuery(e.target.value);
+                  setSelectedIndex(0);
+                }}
+                placeholder="Dienst oder Lesezeichen suchen …"
+                className="flex-1 bg-transparent text-sm text-black outline-none placeholder:text-black/30
+                  dark:text-white dark:placeholder:text-white/30"
+              />
+            </div>
+            <button
+              type="button"
+              onClick={closeSearch}
+              className="flex h-11 w-11 shrink-0 items-center justify-center rounded-full text-black/60
+                hover:bg-black/5 dark:text-white/60 dark:hover:bg-white/10"
+              aria-label="Suche schließen"
+            >
+              <FontAwesomeIcon icon={faXmark} />
+            </button>
+          </div>
+          <div className="min-h-0 flex-1 overflow-y-auto px-4 pb-6">
+            <ResultsList
+              results={searchResults}
+              selectedIndex={selectedIndex}
+              categoryColors={categoryColors}
+              onHover={setSelectedIndex}
+              onOpen={(item) => {
+                onOpen(item as OpenTarget);
+                closeSearch();
+              }}
+              onToggleFavorite={onToggleFavorite}
+              emptyLabel={query.trim().length === 0 ? "Tippe, um zu suchen." : "Keine Treffer."}
+            />
+          </div>
+        </div>
+      ) : null}
+    </div>
+  );
+}

apps/frontend/src/hooks/useIsMobile.ts

@@ -0,0 +1,28 @@
+import { useEffect, useState } from "react";
+
+const MOBILE_BREAKPOINT_QUERY = "(max-width: 640px)";
+
+/**
+ * Erkennt eine mobile Bildschirmbreite (Tailwinds "sm"-Breakpoint, 640px) -
+ * genutzt, um das neue Android-Startbildschirm-Design (siehe
+ * MobileAndroidHome.tsx) NUR auf schmalen Bildschirmen zu zeigen, auch wenn
+ * es in den Einstellungen aktiviert ist. Auf Desktop-Breite bleibt immer das
+ * bisherige Design, unabhängig von der Einstellung - das neue Design ist
+ * ausdrücklich als mobile Alternative gedacht, nicht als Ersatz für die
+ * Desktop-Ansicht.
+ */
+export function useIsMobile(): boolean {
+  const [isMobile, setIsMobile] = useState(
+    () => typeof window !== "undefined" && window.matchMedia(MOBILE_BREAKPOINT_QUERY).matches
+  );
+
+  useEffect(() => {
+    const mql = window.matchMedia(MOBILE_BREAKPOINT_QUERY);
+    const onChange = () => setIsMobile(mql.matches);
+    onChange();
+    mql.addEventListener("change", onChange);
+    return () => mql.removeEventListener("change", onChange);
+  }, []);
+
+  return isMobile;
+}

apps/frontend/src/hooks/useSettings.ts

@@ -7,6 +7,8 @@ export interface AppSettings {
   liveStatusEnabled: boolean;
   liveStatusIntervalMinutes: number;
   liveStatusLastRunAt: string | null;
+  mobileHomeStyle: "classic" | "android";
+  mobileHomeFolderMode: "folders" | "scroll";
 }
 
 async function fetchSettings(): Promise<AppSettings> {

apps/frontend/src/routes/HomePage.tsx

@@ -13,6 +13,8 @@ import { useBackendHealth } from "../hooks/useBackendHealth.js";
 import { useCategories } from "../hooks/useCategories.js";
 import { useRecentVisits, recordVisit } from "../hooks/useRecentVisits.js";
 import { useReadLater } from "../hooks/useReadLater.js";
+import { useIsMobile } from "../hooks/useIsMobile.js";
+import { MobileAndroidHome } from "../components/MobileAndroidHome.js";
 
 async function toggleFavoriteRequest(item: SearchResult): Promise<void> {
   const path = item.kind === "service" ? `/api/services/${item.id}` : `/api/bookmarks/${item.id}`;
@@ -308,6 +310,33 @@ export function HomePage() {
   const showShelf = !isSearching || !resultsVisible;
   const showResults = isSearching && resultsVisible;
 
+  const isMobile = useIsMobile();
+  const useAndroidHome = isMobile && settings?.mobileHomeStyle === "android";
+
+  const addReadLaterMutation = useMutation({
+    mutationFn: (url: string) => saveReadLaterRequest(url),
+    onSuccess: () => queryClient.invalidateQueries({ queryKey: ["read-later"] }),
+  });
+
+  if (useAndroidHome) {
+    return (
+      <MobileAndroidHome
+        services={services ?? []}
+        bookmarks={bookmarks ?? []}
+        categories={categories ?? []}
+        categoryColors={categoryColors}
+        folderMode={settings?.mobileHomeFolderMode ?? "folders"}
+        allSearchItems={allItems}
+        recentVisits={recentVisits ?? []}
+        readLaterItems={readLaterItems ?? []}
+        onOpen={openItem}
+        onToggleFavorite={(item) => toggleFavorite.mutate(item)}
+        onAddReadLater={(url) => addReadLaterMutation.mutate(url)}
+        isOnline={isOnline}
+      />
+    );
+  }
+
   return (
     <div
       className={`flex flex-col bg-gradient-to-b from-white to-neutral-100 dark:from-black

apps/frontend/src/routes/admin/SettingsPage.tsx

@@ -76,6 +76,56 @@ function LiveStatusToggle({ enabled }: { enabled: boolean }) {
   );
 }
 
+function SelectSetting<T extends string>({
+  label,
+  hint,
+  settingKey,
+  value: currentValue,
+  options,
+}: {
+  label: string;
+  hint: string;
+  settingKey: "mobileHomeStyle" | "mobileHomeFolderMode";
+  value: T | undefined;
+  options: Array<{ value: T; label: string }>;
+}) {
+  const queryClient = useQueryClient();
+
+  const mutation = useMutation({
+    mutationFn: async (next: T) => {
+      const res = await fetch("/api/settings", {
+        method: "PATCH",
+        headers: { "Content-Type": "application/json" },
+        body: JSON.stringify({ [settingKey]: next }),
+      });
+      if (!res.ok) throw new Error(`Speichern fehlgeschlagen (HTTP ${res.status})`);
+      return res.json();
+    },
+    onSuccess: () => queryClient.invalidateQueries({ queryKey: ["settings"] }),
+  });
+
+  return (
+    <div className="flex items-center justify-between py-2">
+      <div>
+        <span className="text-sm text-black/50 dark:text-white/50">{label}</span>
+        <p className="text-xs text-black/30 dark:text-white/30">{hint}</p>
+      </div>
+      <select
+        value={currentValue}
+        onChange={(e) => mutation.mutate(e.target.value as T)}
+        className="rounded-lg border border-black/10 bg-white px-2 py-1.5 text-sm text-black
+          dark:border-white/10 dark:bg-white/10 dark:text-white"
+      >
+        {options.map((o) => (
+          <option key={o.value} value={o.value}>
+            {o.label}
+          </option>
+        ))}
+      </select>
+    </div>
+  );
+}
+
 function LimitSetting({
   label,
   hint,
@@ -446,6 +496,28 @@ export function SettingsPage() {
             settingKey="readLaterLimit"
             value={settings?.readLaterLimit}
           />
+          <SelectSetting
+            label="Design (mobile Ansicht)"
+            hint="Gilt nur auf schmalen Bildschirmen (Handy). Am Desktop bleibt immer das gewohnte Design."
+            settingKey="mobileHomeStyle"
+            value={settings?.mobileHomeStyle}
+            options={[
+              { value: "classic", label: "Klassisch (Liste)" },
+              { value: "android", label: "Startbildschirm (Android-Stil)" },
+            ]}
+          />
+          {settings?.mobileHomeStyle === "android" ? (
+            <SelectSetting
+              label="Kategorien im Android-Design"
+              hint="Ordner: antippen zum Öffnen. Einzelseite: alles untereinander mit Überschriften."
+              settingKey="mobileHomeFolderMode"
+              value={settings?.mobileHomeFolderMode}
+              options={[
+                { value: "folders", label: "Als Ordner" },
+                { value: "scroll", label: "Alles auf einer Seite" },
+              ]}
+            />
+          ) : null}
         </div>
 
         <div className="rounded-2xl border border-black/10 p-5 dark:border-white/10">

apps/frontend/tailwind.config.ts

@@ -18,6 +18,19 @@ export default {
           "sans-serif",
         ],
       },
+      keyframes: {
+        // Sehr langsames, kaum wahrnehmbares Wandern des Ambient-Gradient-
+        // Hintergrunds beim Android-Startbildschirm-Design (siehe
+        // MobileAndroidHome.tsx) - über motion-safe: nur aktiv, wenn das
+        // Betriebssystem "reduzierte Bewegung" nicht eingeschaltet hat.
+        drift: {
+          "0%, 100%": { transform: "translate(0%, 0%) scale(1)" },
+          "50%": { transform: "translate(-4%, 3%) scale(1.06)" },
+        },
+      },
+      animation: {
+        drift: "drift 26s ease-in-out infinite",
+      },
     },
   },
   plugins: [],