diff --git a/backend/main.py b/backend/main.py
index dd4236d..f7eb2fb 100644
--- a/backend/main.py
+++ b/backend/main.py
@@ -11,7 +11,7 @@ from pydantic import BaseModel
 
 from backend.auth import authenticate_user, create_token, logout
 from backend.config import FRONTEND_DIR, HOST, PORT
-from backend.routers import stats, terminal, files, services, processes, settings, network
+from backend.routers import stats, terminal, files, services, processes, settings, network, packages, updates
 from backend.routers.plugins import asi_bridge
 
 logging.basicConfig(
@@ -87,6 +87,8 @@ app.include_router(services.router)
 app.include_router(processes.router)
 app.include_router(settings.router)
 app.include_router(network.router)
+app.include_router(packages.router)
+app.include_router(updates.router)
 app.include_router(asi_bridge.router)
 
 
diff --git a/backend/routers/packages.py b/backend/routers/packages.py
new file mode 100644
index 0000000..8a6fc72
--- /dev/null
+++ b/backend/routers/packages.py
@@ -0,0 +1,199 @@
+"""Package management — apt-get / dpkg wrapper for Debian-based systems."""
+
+import asyncio
+import os
+import re
+import shutil
+
+from fastapi import APIRouter, Depends, HTTPException, Query
+from pydantic import BaseModel
+
+from backend.auth import get_current_user
+
+router = APIRouter(prefix="/api/packages", tags=["packages"])
+
+# ---------------------------------------------------------------------------
+# Guard
+# ---------------------------------------------------------------------------
+
+_HAS_APT = bool(shutil.which("apt-cache"))
+
+
+def _require_apt():
+    if not _HAS_APT:
+        raise HTTPException(503, "apt package manager not available on this system")
+
+
+# ---------------------------------------------------------------------------
+# Helpers
+# ---------------------------------------------------------------------------
+
+_PKG_NAME_RE = re.compile(r"^[a-z0-9][a-z0-9.+\-:]+$")
+
+
+def _validate_name(name: str) -> str:
+    name = name.strip()
+    if not _PKG_NAME_RE.match(name):
+        raise HTTPException(400, f"Invalid package name: {name}")
+    return name
+
+
+async def _apt(*args: str, timeout: float = 30) -> str:
+    """Run an apt/dpkg command and return stdout."""
+    _require_apt()
+    cmd = list(args)
+    proc = await asyncio.create_subprocess_exec(
+        *cmd,
+        stdout=asyncio.subprocess.PIPE,
+        stderr=asyncio.subprocess.PIPE,
+        env={**os.environ, "LC_ALL": "C", "DEBIAN_FRONTEND": "noninteractive"},
+    )
+    try:
+        stdout, stderr = await asyncio.wait_for(proc.communicate(), timeout=timeout)
+    except asyncio.TimeoutError:
+        proc.kill()
+        await proc.wait()
+        raise HTTPException(504, "Package operation timed out")
+    if proc.returncode != 0:
+        msg = stderr.decode().strip() or stdout.decode().strip()
+        raise HTTPException(500, f"Package error: {msg}")
+    return stdout.decode()
+
+
+async def _apt_nofail(*args: str, timeout: float = 30) -> tuple[int, str, str]:
+    """Run an apt/dpkg command, return (returncode, stdout, stderr) without raising."""
+    _require_apt()
+    cmd = list(args)
+    proc = await asyncio.create_subprocess_exec(
+        *cmd,
+        stdout=asyncio.subprocess.PIPE,
+        stderr=asyncio.subprocess.PIPE,
+        env={**os.environ, "LC_ALL": "C", "DEBIAN_FRONTEND": "noninteractive"},
+    )
+    try:
+        stdout, stderr = await asyncio.wait_for(proc.communicate(), timeout=timeout)
+    except asyncio.TimeoutError:
+        proc.kill()
+        await proc.wait()
+        return 1, "", "Timed out"
+    return proc.returncode, stdout.decode(), stderr.decode()
+
+
+# ---------------------------------------------------------------------------
+# Models
+# ---------------------------------------------------------------------------
+
+class PackageAction(BaseModel):
+    name: str
+
+
+# ---------------------------------------------------------------------------
+# Endpoints
+# ---------------------------------------------------------------------------
+
+@router.get("/search")
+async def search_packages(
+    q: str = Query(..., min_length=2, description="Search query"),
+    _user: str = Depends(get_current_user),
+):
+    """Search for packages matching a query."""
+    output = await _apt("apt-cache", "search", q)
+    results = []
+    for line in output.strip().splitlines():
+        if not line.strip():
+            continue
+        parts = line.split(" - ", 1)
+        if len(parts) == 2:
+            results.append({"name": parts[0].strip(), "summary": parts[1].strip()})
+        if len(results) >= 100:
+            break
+    return results
+
+
+@router.get("/info/{name}")
+async def package_info(
+    name: str,
+    _user: str = Depends(get_current_user),
+):
+    """Get detailed information about a package."""
+    name = _validate_name(name)
+
+    # Get package info from apt-cache
+    output = await _apt("apt-cache", "show", name)
+
+    # Parse key-value fields
+    info = {}
+    current_key = None
+    current_val = ""
+    for line in output.splitlines():
+        if line.startswith(" "):
+            # Continuation of previous field
+            current_val += "\n" + line.strip()
+        elif ": " in line:
+            if current_key:
+                info[current_key] = current_val
+            current_key, current_val = line.split(": ", 1)
+        elif line == "":
+            if current_key:
+                info[current_key] = current_val
+                current_key = None
+                current_val = ""
+            break  # Only parse first stanza
+    if current_key:
+        info[current_key] = current_val
+
+    # Check installed status
+    rc, dpkg_out, _ = await _apt_nofail(
+        "dpkg-query", "-W", "-f=${Status}\t${Version}\n", name
+    )
+    installed_version = None
+    is_installed = False
+    if rc == 0 and dpkg_out.strip():
+        parts = dpkg_out.strip().split("\t")
+        if len(parts) >= 2 and "install ok installed" in parts[0]:
+            is_installed = True
+            installed_version = parts[1]
+
+    return {
+        "name": info.get("Package", name),
+        "version": info.get("Version", ""),
+        "installed": is_installed,
+        "installed_version": installed_version,
+        "description": info.get("Description", info.get("Description-en", "")),
+        "size": info.get("Size", ""),
+        "installed_size": info.get("Installed-Size", ""),
+        "depends": info.get("Depends", ""),
+        "section": info.get("Section", ""),
+        "maintainer": info.get("Maintainer", ""),
+        "homepage": info.get("Homepage", ""),
+        "architecture": info.get("Architecture", ""),
+    }
+
+
+@router.post("/install")
+async def install_package(
+    req: PackageAction,
+    _user: str = Depends(get_current_user),
+):
+    """Install a package via apt-get."""
+    name = _validate_name(req.name)
+    output = await _apt("apt-get", "install", "-y", name, timeout=300)
+    return {"success": True, "package": name, "output": output[-500:]}
+
+
+@router.post("/remove")
+async def remove_package(
+    req: PackageAction,
+    _user: str = Depends(get_current_user),
+):
+    """Remove a package via apt-get."""
+    name = _validate_name(req.name)
+    output = await _apt("apt-get", "remove", "-y", name, timeout=120)
+    return {"success": True, "package": name, "output": output[-500:]}
+
+
+@router.post("/update-cache")
+async def update_cache(_user: str = Depends(get_current_user)):
+    """Run apt-get update to refresh package lists."""
+    output = await _apt("apt-get", "update", timeout=120)
+    return {"success": True, "output": output[-500:]}
diff --git a/backend/routers/updates.py b/backend/routers/updates.py
new file mode 100644
index 0000000..f1e6946
--- /dev/null
+++ b/backend/routers/updates.py
@@ -0,0 +1,166 @@
+"""Self-update — check Gitea repo for new commits and apply updates."""
+
+import asyncio
+import os
+import shutil
+
+from fastapi import APIRouter, Depends, HTTPException
+
+from backend.auth import get_current_user
+from backend.config import BASE_DIR
+
+router = APIRouter(prefix="/api/updates", tags=["updates"])
+
+# ---------------------------------------------------------------------------
+# Guard
+# ---------------------------------------------------------------------------
+
+_IS_GIT = (BASE_DIR / ".git").is_dir()
+_HAS_GIT = bool(shutil.which("git"))
+
+
+def _require_git():
+    if not _HAS_GIT:
+        raise HTTPException(503, "git is not installed")
+    if not _IS_GIT:
+        raise HTTPException(503, "Atlus was not installed via git — updates unavailable")
+
+
+# ---------------------------------------------------------------------------
+# Helpers
+# ---------------------------------------------------------------------------
+
+async def _git(*args: str, timeout: float = 30) -> str:
+    """Run a git command in the Atlus install directory."""
+    _require_git()
+    cmd = ["git", "-C", str(BASE_DIR)] + list(args)
+    proc = await asyncio.create_subprocess_exec(
+        *cmd,
+        stdout=asyncio.subprocess.PIPE,
+        stderr=asyncio.subprocess.PIPE,
+        env={**os.environ, "LC_ALL": "C"},
+    )
+    try:
+        stdout, stderr = await asyncio.wait_for(proc.communicate(), timeout=timeout)
+    except asyncio.TimeoutError:
+        proc.kill()
+        await proc.wait()
+        raise HTTPException(504, "git operation timed out")
+    if proc.returncode != 0:
+        msg = stderr.decode().strip() or stdout.decode().strip()
+        raise HTTPException(500, f"git error: {msg}")
+    return stdout.decode().strip()
+
+
+async def _git_nofail(*args: str, timeout: float = 30) -> tuple[int, str]:
+    """Run a git command, return (returncode, stdout) without raising."""
+    _require_git()
+    cmd = ["git", "-C", str(BASE_DIR)] + list(args)
+    proc = await asyncio.create_subprocess_exec(
+        *cmd,
+        stdout=asyncio.subprocess.PIPE,
+        stderr=asyncio.subprocess.PIPE,
+        env={**os.environ, "LC_ALL": "C"},
+    )
+    try:
+        stdout, stderr = await asyncio.wait_for(proc.communicate(), timeout=timeout)
+    except asyncio.TimeoutError:
+        proc.kill()
+        await proc.wait()
+        return 1, ""
+    return proc.returncode, stdout.decode().strip()
+
+
+# ---------------------------------------------------------------------------
+# Endpoints
+# ---------------------------------------------------------------------------
+
+@router.get("/check")
+async def check_for_updates(_user: str = Depends(get_current_user)):
+    """Check if there are new commits on the remote."""
+    # Get current local HEAD
+    local_hash = await _git("rev-parse", "HEAD")
+
+    # Fetch latest from remote (may take a few seconds)
+    try:
+        await _git("fetch", "origin", timeout=30)
+    except HTTPException:
+        # Fetch failed (no network, etc.) — report no update
+        return {
+            "available": False,
+            "local_hash": local_hash[:8],
+            "remote_hash": local_hash[:8],
+            "behind_count": 0,
+            "error": "Could not reach remote repository",
+        }
+
+    # Get remote HEAD
+    rc, remote_hash = await _git_nofail("rev-parse", "origin/main")
+    if rc != 0:
+        # Try origin/master as fallback
+        rc, remote_hash = await _git_nofail("rev-parse", "origin/master")
+    if rc != 0:
+        return {
+            "available": False,
+            "local_hash": local_hash[:8],
+            "remote_hash": "",
+            "behind_count": 0,
+            "error": "Could not determine remote branch",
+        }
+
+    # Count commits behind
+    rc, count_str = await _git_nofail("rev-list", "--count", f"HEAD..{remote_hash}")
+    behind_count = int(count_str) if rc == 0 and count_str.isdigit() else 0
+
+    return {
+        "available": behind_count > 0,
+        "local_hash": local_hash[:8],
+        "remote_hash": remote_hash[:8],
+        "behind_count": behind_count,
+    }
+
+
+@router.post("/apply")
+async def apply_update(_user: str = Depends(get_current_user)):
+    """Pull latest changes and schedule a service restart."""
+    # Pull latest
+    pull_output = await _git("pull", "--ff-only", timeout=60)
+
+    # Reinstall Python dependencies
+    pip_bin = str(BASE_DIR / "venv" / "bin" / "pip")
+    if not os.path.exists(pip_bin):
+        # Fallback: try system pip
+        pip_bin = shutil.which("pip3") or shutil.which("pip") or "pip3"
+
+    req_file = str(BASE_DIR / "backend" / "requirements.txt")
+    if os.path.exists(req_file):
+        proc = await asyncio.create_subprocess_exec(
+            pip_bin, "install", "-r", req_file, "-q",
+            stdout=asyncio.subprocess.PIPE,
+            stderr=asyncio.subprocess.PIPE,
+        )
+        try:
+            await asyncio.wait_for(proc.communicate(), timeout=120)
+        except asyncio.TimeoutError:
+            pass  # Non-fatal — deps might already be satisfied
+
+    # Schedule restart after response is sent
+    if shutil.which("systemctl"):
+        asyncio.create_task(_delayed_restart())
+
+    return {
+        "success": True,
+        "message": "Update applied. Restarting service...",
+        "pull_output": pull_output[-500:],
+    }
+
+
+async def _delayed_restart(delay: float = 2.0):
+    """Wait briefly then restart the atlus systemd service."""
+    await asyncio.sleep(delay)
+    proc = await asyncio.create_subprocess_exec(
+        "systemctl", "restart", "atlus",
+        stdout=asyncio.subprocess.PIPE,
+        stderr=asyncio.subprocess.PIPE,
+    )
+    await proc.wait()
diff --git a/frontend/css/apps/editor.css b/frontend/css/apps/editor.css
new file mode 100644
index 0000000..cf0bdba
--- /dev/null
+++ b/frontend/css/apps/editor.css
@@ -0,0 +1,195 @@
+/* Editor / File Viewer app styles */
+.app-editor {
+    display: flex;
+    flex-direction: column;
+    height: 100%;
+}
+
+.editor-toolbar {
+    display: flex;
+    align-items: center;
+    justify-content: space-between;
+    gap: 8px;
+    padding: 6px 12px;
+    background: var(--bg-titlebar);
+    border-bottom: 1px solid var(--border-structural);
+    min-height: 44px;
+}
+
+.editor-title-wrap {
+    display: flex;
+    align-items: center;
+    gap: 8px;
+    min-width: 0;
+    flex: 1;
+}
+
+.editor-title {
+    font-family: var(--font-mono);
+    font-size: 13px;
+    color: var(--text-primary);
+    overflow: hidden;
+    text-overflow: ellipsis;
+    white-space: nowrap;
+}
+
+.editor-dirty {
+    color: var(--status-amber);
+    font-size: 12px;
+    flex-shrink: 0;
+}
+
+.editor-save-btn {
+    height: 32px;
+    padding: 0 16px;
+    background: var(--accent);
+    border: none;
+    border-radius: var(--radius-sm);
+    color: #fff;
+    font-family: var(--font-ui);
+    font-size: 13px;
+    font-weight: 500;
+    cursor: pointer;
+    flex-shrink: 0;
+}
+
+.editor-save-btn:hover {
+    opacity: 0.9;
+}
+
+.editor-save-btn:disabled {
+    opacity: 0.5;
+    cursor: not-allowed;
+}
+
+/* Main content area */
+.editor-content {
+    flex: 1;
+    display: flex;
+    overflow: hidden;
+}
+
+/* Text editor body */
+.editor-body {
+    display: flex;
+    flex: 1;
+    overflow: hidden;
+}
+
+.editor-lines {
+    width: 48px;
+    padding: 12px 8px 12px 4px;
+    background: var(--bg-dock);
+    border-right: 1px solid var(--border-structural);
+    font-family: var(--font-mono);
+    font-size: 13px;
+    line-height: 1.5;
+    color: var(--text-muted);
+    text-align: right;
+    overflow: hidden;
+    white-space: pre;
+    user-select: none;
+    -webkit-user-select: none;
+}
+
+.editor-textarea {
+    flex: 1;
+    padding: 12px;
+    background: var(--bg-stage);
+    border: none;
+    outline: none;
+    color: var(--text-primary);
+    font-family: var(--font-mono);
+    font-size: 13px;
+    line-height: 1.5;
+    resize: none;
+    tab-size: 4;
+    -moz-tab-size: 4;
+    white-space: pre;
+    overflow: auto;
+    -webkit-overflow-scrolling: touch;
+}
+
+.editor-textarea::selection {
+    background: var(--accent-dim);
+}
+
+/* Image preview */
+.editor-preview {
+    flex: 1;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    padding: 24px;
+    overflow: auto;
+    -webkit-overflow-scrolling: touch;
+    background: var(--bg-stage);
+}
+
+.editor-preview-img {
+    max-width: 100%;
+    max-height: 100%;
+    object-fit: contain;
+    border-radius: var(--radius-md);
+    box-shadow: 0 4px 24px rgba(0,0,0,0.3);
+}
+
+/* Binary file info */
+.editor-binary-info {
+    flex: 1;
+    display: flex;
+    flex-direction: column;
+    align-items: center;
+    justify-content: center;
+    gap: 12px;
+    padding: 48px;
+    background: var(--bg-stage);
+}
+
+.binary-icon {
+    font-size: 48px;
+}
+
+.binary-name {
+    font-family: var(--font-mono);
+    font-size: 16px;
+    font-weight: 500;
+    color: var(--text-primary);
+}
+
+.binary-meta {
+    font-family: var(--font-mono);
+    font-size: 12px;
+    color: var(--text-secondary);
+}
+
+.editor-download-btn {
+    margin-top: 12px;
+    height: 40px;
+    padding: 0 24px;
+    background: var(--accent);
+    border: none;
+    border-radius: var(--radius-md);
+    color: #fff;
+    font-family: var(--font-ui);
+    font-size: 14px;
+    font-weight: 500;
+    cursor: pointer;
+}
+
+.editor-download-btn:hover {
+    opacity: 0.9;
+}
+
+/* Status bar */
+.editor-status {
+    padding: 4px 12px;
+    background: var(--bg-titlebar);
+    border-top: 1px solid var(--border-structural);
+    font-family: var(--font-mono);
+    font-size: 11px;
+    color: var(--text-muted);
+    min-height: 24px;
+    display: flex;
+    align-items: center;
+}
diff --git a/frontend/css/apps/files.css b/frontend/css/apps/files.css
index 239bddb..a90a452 100644
--- a/frontend/css/apps/files.css
+++ b/frontend/css/apps/files.css
@@ -50,6 +50,13 @@
     font-size: 12px;
 }
 
+.files-btn-group {
+    display: flex;
+    align-items: center;
+    gap: 2px;
+    flex-shrink: 0;
+}
+
 .files-action-btn {
     width: 36px;
     height: 36px;
diff --git a/frontend/css/apps/packages.css b/frontend/css/apps/packages.css
new file mode 100644
index 0000000..fdb1b93
--- /dev/null
+++ b/frontend/css/apps/packages.css
@@ -0,0 +1,262 @@
+/* Package Manager app styles */
+.app-packages {
+    display: flex;
+    flex-direction: column;
+    height: 100%;
+}
+
+.pkg-toolbar {
+    display: flex;
+    align-items: center;
+    gap: 8px;
+    padding: 8px 12px;
+    background: var(--bg-titlebar);
+    border-bottom: 1px solid var(--border-structural);
+    min-height: 48px;
+}
+
+.pkg-search {
+    flex: 1;
+    height: 36px;
+    padding: 0 12px;
+    background: var(--bg-input);
+    border: 1px solid var(--border-structural);
+    border-radius: var(--radius-md);
+    color: var(--text-primary);
+    font-family: var(--font-mono);
+    font-size: 13px;
+    outline: none;
+}
+
+.pkg-search:focus {
+    border-color: var(--accent);
+}
+
+.pkg-search::placeholder {
+    color: var(--text-muted);
+}
+
+.pkg-cache-btn {
+    height: 36px;
+    padding: 0 14px;
+    background: var(--bg-titlebar);
+    border: 1px solid var(--border-structural);
+    border-radius: var(--radius-md);
+    color: var(--text-primary);
+    font-family: var(--font-ui);
+    font-size: 13px;
+    cursor: pointer;
+    white-space: nowrap;
+    flex-shrink: 0;
+}
+
+.pkg-cache-btn:hover {
+    background: var(--accent-hover);
+}
+
+.pkg-cache-btn:disabled {
+    opacity: 0.5;
+    cursor: not-allowed;
+}
+
+/* Results list */
+.pkg-list {
+    flex: 1;
+    overflow-y: auto;
+    -webkit-overflow-scrolling: touch;
+}
+
+.pkg-empty,
+.pkg-loading,
+.pkg-error {
+    padding: 24px;
+    text-align: center;
+    font-family: var(--font-mono);
+    font-size: 13px;
+    color: var(--text-muted);
+}
+
+.pkg-error {
+    color: var(--status-red);
+}
+
+/* Package row */
+.pkg-row {
+    border-bottom: 1px solid var(--border-structural);
+}
+
+.pkg-row-header {
+    display: flex;
+    align-items: center;
+    justify-content: space-between;
+    padding: 12px 16px;
+    cursor: pointer;
+    transition: background var(--transition-fast);
+    min-height: 48px;
+    gap: 12px;
+}
+
+.pkg-row-header:hover {
+    background: var(--accent-hover);
+}
+
+.pkg-row.expanded .pkg-row-header {
+    background: var(--accent-dim);
+}
+
+.pkg-info {
+    flex: 1;
+    min-width: 0;
+    display: flex;
+    flex-direction: column;
+    gap: 2px;
+}
+
+.pkg-name {
+    font-family: var(--font-mono);
+    font-size: 14px;
+    font-weight: 500;
+    color: var(--text-primary);
+}
+
+.pkg-summary {
+    font-family: var(--font-ui);
+    font-size: 12px;
+    color: var(--text-secondary);
+    overflow: hidden;
+    text-overflow: ellipsis;
+    white-space: nowrap;
+}
+
+.pkg-expand-icon {
+    color: var(--text-muted);
+    font-size: 12px;
+    flex-shrink: 0;
+    width: 16px;
+    text-align: center;
+}
+
+/* Package detail */
+.pkg-detail {
+    padding: 0 16px 16px;
+    background: var(--bg-dock);
+    border-top: 1px solid var(--border-structural);
+}
+
+.pkg-detail-header {
+    display: flex;
+    align-items: center;
+    justify-content: space-between;
+    gap: 12px;
+    padding: 12px 0;
+    flex-wrap: wrap;
+}
+
+.pkg-detail-version {
+    font-family: var(--font-mono);
+    font-size: 13px;
+    color: var(--text-secondary);
+}
+
+.pkg-badge {
+    display: inline-block;
+    padding: 2px 8px;
+    border-radius: 10px;
+    font-family: var(--font-mono);
+    font-size: 11px;
+    font-weight: 500;
+    margin-left: 8px;
+}
+
+.pkg-badge.installed {
+    background: rgba(58, 184, 106, 0.15);
+    color: var(--status-green);
+}
+
+.pkg-badge.not-installed {
+    background: var(--border-structural);
+    color: var(--text-muted);
+}
+
+.pkg-detail-actions {
+    flex-shrink: 0;
+}
+
+.pkg-action-btn {
+    height: 32px;
+    padding: 0 16px;
+    border: none;
+    border-radius: var(--radius-sm);
+    font-family: var(--font-ui);
+    font-size: 13px;
+    font-weight: 500;
+    cursor: pointer;
+}
+
+.pkg-action-btn.install {
+    background: var(--accent);
+    color: #fff;
+}
+
+.pkg-action-btn.install:hover {
+    opacity: 0.9;
+}
+
+.pkg-action-btn.remove {
+    background: var(--status-red);
+    color: #fff;
+}
+
+.pkg-action-btn.remove:hover {
+    opacity: 0.9;
+}
+
+.pkg-action-btn:disabled {
+    opacity: 0.5;
+    cursor: not-allowed;
+}
+
+.pkg-detail-desc {
+    font-family: var(--font-ui);
+    font-size: 13px;
+    color: var(--text-primary);
+    line-height: 1.5;
+    padding: 8px 0;
+    white-space: pre-wrap;
+}
+
+.pkg-detail-meta {
+    display: flex;
+    flex-wrap: wrap;
+    gap: 16px;
+    padding: 4px 0;
+    font-family: var(--font-mono);
+    font-size: 11px;
+    color: var(--text-secondary);
+}
+
+.pkg-detail-deps {
+    font-family: var(--font-mono);
+    font-size: 11px;
+    color: var(--text-secondary);
+    padding: 4px 0;
+    word-break: break-word;
+}
+
+.pkg-deps-label {
+    color: var(--text-muted);
+    font-weight: 500;
+}
+
+/* Status bar */
+.pkg-status {
+    padding: 6px 16px;
+    background: var(--bg-titlebar);
+    border-top: 1px solid var(--border-structural);
+    font-family: var(--font-mono);
+    font-size: 11px;
+    color: var(--text-muted);
+    min-height: 28px;
+    display: flex;
+    align-items: center;
+}
diff --git a/frontend/css/panel.css b/frontend/css/panel.css
index db6374e..def26b3 100644
--- a/frontend/css/panel.css
+++ b/frontend/css/panel.css
@@ -212,3 +212,75 @@
     background: var(--accent-hover);
     color: var(--accent);
 }
+
+/* Update toast */
+.panel-updates {
+    transition: all var(--transition-base);
+}
+
+.update-toast {
+    position: relative;
+    padding: 12px;
+    background: var(--accent-dim);
+    border-left: 3px solid var(--accent);
+    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
+}
+
+.update-dismiss {
+    position: absolute;
+    top: 4px;
+    right: 4px;
+    width: 24px;
+    height: 24px;
+    background: none;
+    border: none;
+    color: var(--text-muted);
+    cursor: pointer;
+    font-size: 14px;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    border-radius: var(--radius-sm);
+}
+
+.update-dismiss:hover {
+    background: var(--accent-hover);
+    color: var(--text-primary);
+}
+
+.update-toast-title {
+    font-family: var(--font-ui);
+    font-size: 13px;
+    font-weight: 500;
+    color: var(--accent);
+    margin-bottom: 4px;
+}
+
+.update-toast-info {
+    font-family: var(--font-mono);
+    font-size: 11px;
+    color: var(--text-secondary);
+    margin-bottom: 10px;
+}
+
+.update-toast-btn {
+    width: 100%;
+    height: 30px;
+    background: var(--accent);
+    border: none;
+    border-radius: var(--radius-sm);
+    color: #fff;
+    font-family: var(--font-ui);
+    font-size: 12px;
+    font-weight: 500;
+    cursor: pointer;
+}
+
+.update-toast-btn:hover {
+    opacity: 0.9;
+}
+
+.update-toast-btn:disabled {
+    opacity: 0.6;
+    cursor: not-allowed;
+}
diff --git a/frontend/desktop.html b/frontend/desktop.html
index 595afa2..c7fadeb 100644
--- a/frontend/desktop.html
+++ b/frontend/desktop.html
@@ -21,6 +21,8 @@
     <link rel="stylesheet" href="/css/apps/services.css">
     <link rel="stylesheet" href="/css/apps/tasks.css">
     <link rel="stylesheet" href="/css/apps/settings.css">
+    <link rel="stylesheet" href="/css/apps/packages.css">
+    <link rel="stylesheet" href="/css/apps/editor.css">
 </head>
 <body>
     <!-- ================================================================= -->
@@ -54,6 +56,10 @@
                 <span class="dock-icon">🌐</span>
                 <span class="dock-label">Network</span>
             </button>
+            <button class="dock-item" data-app="packages">
+                <span class="dock-icon">📦</span>
+                <span class="dock-label">Packages</span>
+            </button>
             <div class="dock-separator"></div>
             <button class="dock-item" data-app="asi-bridge">
                 <span class="dock-icon">🔭</span>
@@ -131,6 +137,9 @@
             </div>
         </div>
 
+        <!-- Update notification -->
+        <div class="panel-section panel-updates hidden" id="panelUpdates"></div>
+
         <!-- Network -->
         <div class="panel-section panel-network">
             <div class="panel-section-title">NETWORK</div>
@@ -196,6 +205,8 @@
     <script src="/js/apps/services.js"></script>
     <script src="/js/apps/tasks.js"></script>
     <script src="/js/apps/settings.js"></script>
+    <script src="/js/apps/packages.js"></script>
+    <script src="/js/apps/editor.js"></script>
     <script src="/js/apps/asi_bridge.js"></script>
 </body>
 </html>
diff --git a/frontend/js/apps/editor.js b/frontend/js/apps/editor.js
new file mode 100644
index 0000000..3e72eae
--- /dev/null
+++ b/frontend/js/apps/editor.js
@@ -0,0 +1,347 @@
+/* Atlus — Text Editor / File Viewer app */
+(function () {
+    'use strict';
+
+    let container = null;
+    let currentFile = null;   // { path, name, mime, size }
+    let isDirty = false;
+    let editorEl = null;      // textarea element
+    let linesEl = null;       // line numbers element
+    let titleEl = null;       // filename display
+    let dirtyEl = null;       // dirty indicator
+    let saveBtn = null;
+    let statusEl = null;
+    let bodyEl = null;        // main content area
+
+    // MIME types we treat as text/editable
+    const TEXT_MIMES = [
+        'text/', 'application/json', 'application/javascript',
+        'application/xml', 'application/x-sh', 'application/x-python',
+        'application/toml', 'application/yaml', 'application/x-yaml',
+        'application/sql', 'application/x-httpd-php',
+    ];
+
+    const IMAGE_MIMES = ['image/'];
+
+    function isTextMime(mime) {
+        if (!mime) return true; // Unknown = try text
+        return TEXT_MIMES.some(t => mime.startsWith(t));
+    }
+
+    function isImageMime(mime) {
+        if (!mime) return false;
+        return IMAGE_MIMES.some(t => mime.startsWith(t));
+    }
+
+    // ---- Line numbers ----
+
+    function updateLineNumbers() {
+        if (!editorEl || !linesEl) return;
+        const count = editorEl.value.split('\n').length;
+        const nums = [];
+        for (let i = 1; i <= count; i++) nums.push(i);
+        linesEl.textContent = nums.join('\n');
+    }
+
+    function syncScroll() {
+        if (linesEl && editorEl) {
+            linesEl.scrollTop = editorEl.scrollTop;
+        }
+    }
+
+    // ---- Dirty tracking ----
+
+    function markDirty() {
+        if (!isDirty) {
+            isDirty = true;
+            if (dirtyEl) dirtyEl.classList.remove('hidden');
+        }
+    }
+
+    function markClean() {
+        isDirty = false;
+        if (dirtyEl) dirtyEl.classList.add('hidden');
+    }
+
+    // ---- Save ----
+
+    async function saveFile() {
+        if (!currentFile || !editorEl) return;
+        saveBtn.disabled = true;
+        saveBtn.textContent = 'Saving…';
+        try {
+            const res = await Atlus.apiFetch('/api/files/write', {
+                method: 'POST',
+                body: { path: currentFile.path, content: editorEl.value },
+            });
+            if (res.ok) {
+                markClean();
+                const data = await res.json();
+                updateStatus(data.size);
+            }
+        } catch (e) {
+            // show error inline
+        }
+        saveBtn.disabled = false;
+        saveBtn.textContent = 'Save';
+    }
+
+    // ---- Status bar ----
+
+    function updateStatus(size) {
+        if (!statusEl) return;
+        const parts = [];
+        if (currentFile) {
+            if (editorEl) {
+                const lines = editorEl.value.split('\n').length;
+                parts.push(`${lines} lines`);
+            }
+            if (size !== undefined) {
+                parts.push(Atlus.formatBytes(size));
+            }
+            if (currentFile.mime) {
+                parts.push(currentFile.mime);
+            }
+        }
+        statusEl.textContent = parts.join('  •  ');
+    }
+
+    // ---- Open file ----
+
+    async function openFile(path, mime) {
+        const name = path.split('/').pop();
+        currentFile = { path, name, mime, size: 0 };
+        isDirty = false;
+
+        // Update title
+        if (titleEl) titleEl.textContent = name;
+        if (dirtyEl) dirtyEl.classList.add('hidden');
+
+        // Clear body
+        bodyEl.innerHTML = '';
+
+        if (isImageMime(mime)) {
+            await renderImage(path, name);
+        } else if (isTextMime(mime)) {
+            await renderTextEditor(path);
+        } else {
+            await renderBinaryInfo(path, name, mime);
+        }
+    }
+
+    async function renderTextEditor(path) {
+        // Create editor layout
+        const editorWrap = document.createElement('div');
+        editorWrap.className = 'editor-body';
+
+        linesEl = document.createElement('div');
+        linesEl.className = 'editor-lines';
+
+        editorEl = document.createElement('textarea');
+        editorEl.className = 'editor-textarea';
+        editorEl.spellcheck = false;
+        editorEl.autocapitalize = 'off';
+        editorEl.autocomplete = 'off';
+
+        editorWrap.appendChild(linesEl);
+        editorWrap.appendChild(editorEl);
+        bodyEl.appendChild(editorWrap);
+
+        // Show save button
+        if (saveBtn) saveBtn.classList.remove('hidden');
+
+        // Load content
+        try {
+            const res = await Atlus.apiFetch(`/api/files/read?path=${encodeURIComponent(path)}`);
+            if (res.ok) {
+                const data = await res.json();
+                editorEl.value = data.content;
+                currentFile.size = data.content.length;
+                updateLineNumbers();
+                updateStatus(currentFile.size);
+            } else {
+                editorEl.value = `Error loading file: ${res.status}`;
+            }
+        } catch (e) {
+            editorEl.value = `Error: ${e.message}`;
+        }
+
+        // Events
+        editorEl.addEventListener('input', () => {
+            markDirty();
+            updateLineNumbers();
+        });
+        editorEl.addEventListener('scroll', syncScroll);
+
+        // Tab key support
+        editorEl.addEventListener('keydown', (e) => {
+            if (e.key === 'Tab') {
+                e.preventDefault();
+                const start = editorEl.selectionStart;
+                const end = editorEl.selectionEnd;
+                editorEl.value = editorEl.value.substring(0, start) + '    ' + editorEl.value.substring(end);
+                editorEl.selectionStart = editorEl.selectionEnd = start + 4;
+                markDirty();
+                updateLineNumbers();
+            }
+            // Ctrl+S / Cmd+S
+            if ((e.ctrlKey || e.metaKey) && e.key === 's') {
+                e.preventDefault();
+                saveFile();
+            }
+        });
+    }
+
+    async function renderImage(path, name) {
+        if (saveBtn) saveBtn.classList.add('hidden');
+        linesEl = null;
+        editorEl = null;
+
+        const imgWrap = document.createElement('div');
+        imgWrap.className = 'editor-preview';
+
+        const img = document.createElement('img');
+        img.className = 'editor-preview-img';
+        img.alt = name;
+
+        // Load via authenticated fetch → blob URL
+        try {
+            const res = await Atlus.apiFetch(`/api/files/download?path=${encodeURIComponent(path)}`);
+            if (res.ok) {
+                const blob = await res.blob();
+                img.src = URL.createObjectURL(blob);
+                currentFile.size = blob.size;
+                updateStatus(blob.size);
+            }
+        } catch (e) {
+            img.alt = 'Failed to load image';
+        }
+
+        imgWrap.appendChild(img);
+        bodyEl.appendChild(imgWrap);
+    }
+
+    async function renderBinaryInfo(path, name, mime) {
+        if (saveBtn) saveBtn.classList.add('hidden');
+        linesEl = null;
+        editorEl = null;
+
+        const infoCard = document.createElement('div');
+        infoCard.className = 'editor-binary-info';
+
+        // Fetch file info
+        try {
+            const res = await Atlus.apiFetch(`/api/files/info?path=${encodeURIComponent(path)}`);
+            if (res.ok) {
+                const info = await res.json();
+                currentFile.size = info.size;
+                infoCard.innerHTML = `
+                    <div class="binary-icon">📄</div>
+                    <div class="binary-name">${name}</div>
+                    <div class="binary-meta">${Atlus.formatBytes(info.size)}  •  ${mime || 'Unknown type'}</div>
+                    <div class="binary-meta">${info.permissions}  •  ${info.owner}:${info.group}</div>
+                    <button class="editor-download-btn">Download</button>
+                `;
+                infoCard.querySelector('.editor-download-btn').addEventListener('click', async () => {
+                    const dlRes = await Atlus.apiFetch(`/api/files/download?path=${encodeURIComponent(path)}`);
+                    if (dlRes.ok) {
+                        const blob = await dlRes.blob();
+                        const url = URL.createObjectURL(blob);
+                        const a = document.createElement('a');
+                        a.href = url;
+                        a.download = name;
+                        a.click();
+                        URL.revokeObjectURL(url);
+                    }
+                });
+                updateStatus(info.size);
+            }
+        } catch (e) {
+            infoCard.innerHTML = `<div class="binary-name">${name}</div><div class="binary-meta">Could not load file info</div>`;
+        }
+
+        bodyEl.appendChild(infoCard);
+    }
+
+    // ---- App registration ----
+
+    Atlus.registerApp('editor', {
+        title: 'Editor',
+
+        init(el) {
+            container = el;
+            container.classList.add('app-editor');
+
+            // Toolbar
+            const toolbar = document.createElement('div');
+            toolbar.className = 'editor-toolbar';
+
+            titleEl = document.createElement('div');
+            titleEl.className = 'editor-title';
+            titleEl.textContent = 'No file open';
+
+            dirtyEl = document.createElement('span');
+            dirtyEl.className = 'editor-dirty hidden';
+            dirtyEl.textContent = '●';
+            dirtyEl.title = 'Unsaved changes';
+
+            const titleWrap = document.createElement('div');
+            titleWrap.className = 'editor-title-wrap';
+            titleWrap.appendChild(titleEl);
+            titleWrap.appendChild(dirtyEl);
+
+            saveBtn = document.createElement('button');
+            saveBtn.className = 'editor-save-btn hidden';
+            saveBtn.textContent = 'Save';
+            saveBtn.addEventListener('click', saveFile);
+
+            toolbar.appendChild(titleWrap);
+            toolbar.appendChild(saveBtn);
+            container.appendChild(toolbar);
+
+            // Body
+            bodyEl = document.createElement('div');
+            bodyEl.className = 'editor-content';
+            container.appendChild(bodyEl);
+
+            // Status bar
+            statusEl = document.createElement('div');
+            statusEl.className = 'editor-status';
+            container.appendChild(statusEl);
+
+            // Check for pending file open
+            if (container._pendingFile) {
+                const { path, mime } = container._pendingFile;
+                delete container._pendingFile;
+                openFile(path, mime);
+            }
+        },
+
+        destroy() {
+            // Revoke any blob URLs
+            if (bodyEl) {
+                const imgs = bodyEl.querySelectorAll('img');
+                imgs.forEach(img => {
+                    if (img.src.startsWith('blob:')) URL.revokeObjectURL(img.src);
+                });
+            }
+            container = null;
+            editorEl = null;
+            linesEl = null;
+            titleEl = null;
+            dirtyEl = null;
+            saveBtn = null;
+            statusEl = null;
+            bodyEl = null;
+            currentFile = null;
+            isDirty = false;
+        },
+
+        // Public API for file manager integration
+        openFile(path, mime) {
+            if (container) {
+                openFile(path, mime);
+            }
+        },
+    });
+})();
diff --git a/frontend/js/apps/files.js b/frontend/js/apps/files.js
index 56ead96..a2c9f50 100644
--- a/frontend/js/apps/files.js
+++ b/frontend/js/apps/files.js
@@ -9,6 +9,7 @@
     let sidebarEl = null;
     let selectedFiles = new Set();
     let contextMenuEl = null;
+    let uploadInput = null;
 
     const FILE_ICONS = {
         dir: '📁',
@@ -42,6 +43,20 @@
         });
     }
 
+    // ---- Open file in editor ----
+
+    function openInEditor(entry) {
+        Atlus.openApp('editor');
+        // Give editor time to init, then open file
+        setTimeout(() => {
+            if (Atlus.apps.editor && Atlus.apps.editor.openFile) {
+                Atlus.apps.editor.openFile(entry.path, entry.mime);
+            }
+        }, 50);
+    }
+
+    // ---- Directory operations ----
+
     async function loadDirectory(path) {
         currentPath = path;
         selectedFiles.clear();
@@ -100,6 +115,7 @@
                 <span class="file-perms">${entry.permissions}</span>
             `;
 
+            // Single click — navigate dir or toggle selection
             row.addEventListener('click', () => {
                 if (entry.is_dir) {
                     loadDirectory(entry.path);
@@ -114,6 +130,14 @@
                 }
             });
 
+            // Double click — open file in editor
+            row.addEventListener('dblclick', (e) => {
+                if (!entry.is_dir) {
+                    e.preventDefault();
+                    openInEditor(entry);
+                }
+            });
+
             // Long-press for context menu
             let pressTimer;
             row.addEventListener('touchstart', (e) => {
@@ -160,19 +184,35 @@
         });
     }
 
+    // ---- Context menu ----
+
     function showContextMenu(e, entry) {
         hideContextMenu();
         contextMenuEl = document.createElement('div');
         contextMenuEl.className = 'file-context-menu';
 
-        const items = [
-            { label: 'Open', action: () => entry.is_dir ? loadDirectory(entry.path) : previewFile(entry) },
-            { label: 'Rename', action: () => renameFile(entry) },
-            { label: 'Copy', action: () => { /* clipboard */ } },
-            { label: 'Move', action: () => { /* clipboard */ } },
-            { sep: true },
-            { label: 'Delete', action: () => deleteFile(entry), danger: true },
-        ];
+        const items = [];
+
+        // If right-clicked on empty area or a specific entry
+        if (entry) {
+            if (entry.is_dir) {
+                items.push({ label: 'Open', action: () => loadDirectory(entry.path) });
+            } else {
+                items.push({ label: 'Open in Editor', action: () => openInEditor(entry) });
+            }
+            items.push({ label: 'Rename', action: () => renameFile(entry) });
+            items.push({ label: 'Copy', action: () => { /* TODO */ } });
+            items.push({ label: 'Move', action: () => { /* TODO */ } });
+            items.push({ sep: true });
+        }
+
+        items.push({ label: 'New File', action: () => createNewFile() });
+        items.push({ label: 'New Folder', action: () => createNewFolder() });
+
+        if (entry) {
+            items.push({ sep: true });
+            items.push({ label: 'Delete', action: () => deleteFile(entry), danger: true });
+        }
 
         items.forEach(item => {
             if (item.sep) {
@@ -211,6 +251,34 @@
         }
     }
 
+    // ---- File operations ----
+
+    async function createNewFile() {
+        const name = prompt('New file name:');
+        if (!name) return;
+        const filePath = (currentPath === '/' ? '/' : currentPath + '/') + name;
+        try {
+            await Atlus.apiFetch('/api/files/write', {
+                method: 'POST',
+                body: { path: filePath, content: '' },
+            });
+            loadDirectory(currentPath);
+        } catch (e) { /* ignore */ }
+    }
+
+    async function createNewFolder() {
+        const name = prompt('New folder name:');
+        if (!name) return;
+        const folderPath = (currentPath === '/' ? '/' : currentPath + '/') + name;
+        try {
+            await Atlus.apiFetch('/api/files/mkdir', {
+                method: 'POST',
+                body: { path: folderPath },
+            });
+            loadDirectory(currentPath);
+        } catch (e) { /* ignore */ }
+    }
+
     async function deleteFile(entry) {
         if (!confirm(`Delete "${entry.name}"?`)) return;
         await Atlus.apiFetch('/api/files/delete', {
@@ -220,6 +288,20 @@
         loadDirectory(currentPath);
     }
 
+    async function deleteSelected() {
+        if (selectedFiles.size === 0) return;
+        const count = selectedFiles.size;
+        if (!confirm(`Delete ${count} selected item${count > 1 ? 's' : ''}?`)) return;
+        for (const path of selectedFiles) {
+            await Atlus.apiFetch('/api/files/delete', {
+                method: 'POST',
+                body: { path },
+            });
+        }
+        selectedFiles.clear();
+        loadDirectory(currentPath);
+    }
+
     async function renameFile(entry) {
         const newName = prompt('New name:', entry.name);
         if (!newName || newName === entry.name) return;
@@ -230,17 +312,26 @@
         loadDirectory(currentPath);
     }
 
-    async function previewFile(entry) {
-        // Simple text preview
-        try {
-            const res = await Atlus.apiFetch(`/api/files/read?path=${encodeURIComponent(entry.path)}`);
-            if (res.ok) {
-                const data = await res.json();
-                alert(data.content.substring(0, 2000));
-            }
-        } catch (e) {}
+    async function uploadFile() {
+        if (!uploadInput) return;
+        uploadInput.click();
     }
 
+    async function handleUpload(file) {
+        const formData = new FormData();
+        formData.append('file', file);
+        try {
+            await Atlus.apiFetch(`/api/files/upload?dest_dir=${encodeURIComponent(currentPath)}`, {
+                method: 'POST',
+                body: formData,
+                headers: {}, // Let browser set content-type for multipart
+            });
+            loadDirectory(currentPath);
+        } catch (e) { /* ignore */ }
+    }
+
+    // ---- Mounts ----
+
     async function loadMounts() {
         try {
             const res = await Atlus.apiFetch('/api/files/mounts');
@@ -265,6 +356,8 @@
         } catch (e) {}
     }
 
+    // ---- App registration ----
+
     Atlus.registerApp('files', {
         title: 'Files',
 
@@ -279,14 +372,62 @@
             breadcrumbEl.className = 'files-breadcrumb';
             toolbar.appendChild(breadcrumbEl);
 
-            // Refresh button
+            // Toolbar buttons
+            const btnGroup = document.createElement('div');
+            btnGroup.className = 'files-btn-group';
+
+            // New File
+            const newFileBtn = document.createElement('button');
+            newFileBtn.className = 'files-action-btn';
+            newFileBtn.textContent = '📄+';
+            newFileBtn.title = 'New File';
+            newFileBtn.addEventListener('click', createNewFile);
+            btnGroup.appendChild(newFileBtn);
+
+            // New Folder
+            const newFolderBtn = document.createElement('button');
+            newFolderBtn.className = 'files-action-btn';
+            newFolderBtn.textContent = '📁+';
+            newFolderBtn.title = 'New Folder';
+            newFolderBtn.addEventListener('click', createNewFolder);
+            btnGroup.appendChild(newFolderBtn);
+
+            // Upload
+            uploadInput = document.createElement('input');
+            uploadInput.type = 'file';
+            uploadInput.style.display = 'none';
+            uploadInput.addEventListener('change', (e) => {
+                if (e.target.files.length > 0) {
+                    handleUpload(e.target.files[0]);
+                    uploadInput.value = '';
+                }
+            });
+            container.appendChild(uploadInput);
+
+            const uploadBtn = document.createElement('button');
+            uploadBtn.className = 'files-action-btn';
+            uploadBtn.textContent = '⬆';
+            uploadBtn.title = 'Upload';
+            uploadBtn.addEventListener('click', uploadFile);
+            btnGroup.appendChild(uploadBtn);
+
+            // Delete selected
+            const deleteBtn = document.createElement('button');
+            deleteBtn.className = 'files-action-btn';
+            deleteBtn.textContent = '🗑';
+            deleteBtn.title = 'Delete Selected';
+            deleteBtn.addEventListener('click', deleteSelected);
+            btnGroup.appendChild(deleteBtn);
+
+            // Refresh
             const refreshBtn = document.createElement('button');
             refreshBtn.className = 'files-action-btn';
             refreshBtn.textContent = '↻';
             refreshBtn.title = 'Refresh';
             refreshBtn.addEventListener('click', () => loadDirectory(currentPath));
-            toolbar.appendChild(refreshBtn);
+            btnGroup.appendChild(refreshBtn);
 
+            toolbar.appendChild(btnGroup);
             container.appendChild(toolbar);
 
             // Body
@@ -330,6 +471,15 @@
 
             fileListEl = document.createElement('div');
             fileListEl.className = 'files-list';
+
+            // Right-click on empty area for context menu
+            fileListEl.addEventListener('contextmenu', (e) => {
+                if (e.target === fileListEl || e.target.closest('.file-row') === null) {
+                    e.preventDefault();
+                    showContextMenu(e, null);
+                }
+            });
+
             listPanel.appendChild(fileListEl);
 
             body.appendChild(listPanel);
@@ -346,6 +496,7 @@
             fileListEl = null;
             breadcrumbEl = null;
             sidebarEl = null;
+            uploadInput = null;
             currentPath = '/';
             selectedFiles.clear();
         },
diff --git a/frontend/js/apps/packages.js b/frontend/js/apps/packages.js
new file mode 100644
index 0000000..d5b8fd6
--- /dev/null
+++ b/frontend/js/apps/packages.js
@@ -0,0 +1,294 @@
+/* Atlus — Package Manager app */
+(function () {
+    'use strict';
+
+    let container = null;
+    let searchInput = null;
+    let listEl = null;
+    let statusEl = null;
+    let searchTimeout = null;
+    let expandedPkg = null;  // currently expanded package name
+
+    // ---- Search ----
+
+    async function searchPackages(query) {
+        if (!query || query.length < 2) {
+            listEl.innerHTML = '<div class="pkg-empty">Type at least 2 characters to search packages</div>';
+            return;
+        }
+
+        listEl.innerHTML = '<div class="pkg-loading">Searching…</div>';
+
+        try {
+            const res = await Atlus.apiFetch(`/api/packages/search?q=${encodeURIComponent(query)}`);
+            if (res.status === 503) {
+                listEl.innerHTML = '<div class="pkg-empty">Package manager not available on this system</div>';
+                return;
+            }
+            if (!res.ok) throw new Error('Search failed');
+            const results = await res.json();
+
+            if (results.length === 0) {
+                listEl.innerHTML = '<div class="pkg-empty">No packages found</div>';
+                return;
+            }
+
+            renderResults(results);
+            updateStatus(`${results.length} result${results.length !== 1 ? 's' : ''}`);
+        } catch (e) {
+            listEl.innerHTML = `<div class="pkg-error">Error: ${e.message}</div>`;
+        }
+    }
+
+    // ---- Render results ----
+
+    function renderResults(results) {
+        listEl.innerHTML = '';
+
+        results.forEach(pkg => {
+            const row = document.createElement('div');
+            row.className = 'pkg-row';
+            row.dataset.name = pkg.name;
+
+            row.innerHTML = `
+                <div class="pkg-row-header">
+                    <div class="pkg-info">
+                        <span class="pkg-name">${pkg.name}</span>
+                        <span class="pkg-summary">${pkg.summary || ''}</span>
+                    </div>
+                    <span class="pkg-expand-icon">▸</span>
+                </div>
+                <div class="pkg-detail hidden"></div>
+            `;
+
+            const header = row.querySelector('.pkg-row-header');
+            const detail = row.querySelector('.pkg-detail');
+
+            header.addEventListener('click', () => {
+                if (expandedPkg === pkg.name) {
+                    // Collapse
+                    detail.classList.add('hidden');
+                    row.classList.remove('expanded');
+                    row.querySelector('.pkg-expand-icon').textContent = '▸';
+                    expandedPkg = null;
+                } else {
+                    // Collapse previous
+                    if (expandedPkg) {
+                        const prev = listEl.querySelector(`.pkg-row[data-name="${expandedPkg}"]`);
+                        if (prev) {
+                            prev.querySelector('.pkg-detail').classList.add('hidden');
+                            prev.classList.remove('expanded');
+                            prev.querySelector('.pkg-expand-icon').textContent = '▸';
+                        }
+                    }
+                    // Expand this
+                    expandedPkg = pkg.name;
+                    row.classList.add('expanded');
+                    row.querySelector('.pkg-expand-icon').textContent = '▾';
+                    loadPackageDetail(pkg.name, detail);
+                }
+            });
+
+            listEl.appendChild(row);
+        });
+    }
+
+    // ---- Package detail ----
+
+    async function loadPackageDetail(name, detailEl) {
+        detailEl.classList.remove('hidden');
+        detailEl.innerHTML = '<div class="pkg-loading">Loading…</div>';
+
+        try {
+            const res = await Atlus.apiFetch(`/api/packages/info/${encodeURIComponent(name)}`);
+            if (!res.ok) throw new Error('Failed to load package info');
+            const info = await res.json();
+            renderDetail(info, detailEl);
+        } catch (e) {
+            detailEl.innerHTML = `<div class="pkg-error">Error: ${e.message}</div>`;
+        }
+    }
+
+    function renderDetail(info, detailEl) {
+        const installedBadge = info.installed
+            ? `<span class="pkg-badge installed">Installed ${info.installed_version || ''}</span>`
+            : `<span class="pkg-badge not-installed">Not installed</span>`;
+
+        const sizeText = info.installed_size
+            ? `${info.installed_size} KB installed`
+            : (info.size ? `${Atlus.formatBytes(parseInt(info.size))} download` : '');
+
+        detailEl.innerHTML = `
+            <div class="pkg-detail-header">
+                <div>
+                    <span class="pkg-detail-version">v${info.version}</span>
+                    ${installedBadge}
+                </div>
+                <div class="pkg-detail-actions">
+                    ${info.installed
+                        ? `<button class="pkg-action-btn remove" data-name="${info.name}">Remove</button>`
+                        : `<button class="pkg-action-btn install" data-name="${info.name}">Install</button>`
+                    }
+                </div>
+            </div>
+            <div class="pkg-detail-desc">${info.description || 'No description available'}</div>
+            <div class="pkg-detail-meta">
+                ${info.section ? `<span>Section: ${info.section}</span>` : ''}
+                ${sizeText ? `<span>Size: ${sizeText}</span>` : ''}
+                ${info.architecture ? `<span>Arch: ${info.architecture}</span>` : ''}
+            </div>
+            ${info.depends ? `<div class="pkg-detail-deps"><span class="pkg-deps-label">Depends:</span> ${info.depends}</div>` : ''}
+            ${info.homepage ? `<div class="pkg-detail-meta"><span>Homepage: ${info.homepage}</span></div>` : ''}
+        `;
+
+        // Action button handler
+        const actionBtn = detailEl.querySelector('.pkg-action-btn');
+        if (actionBtn) {
+            actionBtn.addEventListener('click', (e) => {
+                e.stopPropagation();
+                const pkgName = actionBtn.dataset.name;
+                if (actionBtn.classList.contains('install')) {
+                    installPackage(pkgName, actionBtn, detailEl);
+                } else {
+                    removePackage(pkgName, actionBtn, detailEl);
+                }
+            });
+        }
+    }
+
+    // ---- Install / Remove ----
+
+    async function installPackage(name, btn, detailEl) {
+        btn.disabled = true;
+        btn.textContent = 'Installing…';
+        updateStatus(`Installing ${name}…`);
+
+        try {
+            const res = await Atlus.apiFetch('/api/packages/install', {
+                method: 'POST',
+                body: { name },
+            });
+            if (!res.ok) {
+                const err = await res.json();
+                throw new Error(err.detail || 'Install failed');
+            }
+            updateStatus(`${name} installed successfully`);
+            // Reload detail to reflect new status
+            await loadPackageDetail(name, detailEl);
+        } catch (e) {
+            btn.disabled = false;
+            btn.textContent = 'Install';
+            updateStatus(`Error: ${e.message}`);
+        }
+    }
+
+    async function removePackage(name, btn, detailEl) {
+        if (!confirm(`Remove package "${name}"?`)) return;
+        btn.disabled = true;
+        btn.textContent = 'Removing…';
+        updateStatus(`Removing ${name}…`);
+
+        try {
+            const res = await Atlus.apiFetch('/api/packages/remove', {
+                method: 'POST',
+                body: { name },
+            });
+            if (!res.ok) {
+                const err = await res.json();
+                throw new Error(err.detail || 'Remove failed');
+            }
+            updateStatus(`${name} removed successfully`);
+            // Reload detail to reflect new status
+            await loadPackageDetail(name, detailEl);
+        } catch (e) {
+            btn.disabled = false;
+            btn.textContent = 'Remove';
+            updateStatus(`Error: ${e.message}`);
+        }
+    }
+
+    // ---- Refresh cache ----
+
+    async function refreshCache(btn) {
+        btn.disabled = true;
+        btn.textContent = 'Updating…';
+        updateStatus('Updating package cache…');
+
+        try {
+            const res = await Atlus.apiFetch('/api/packages/update-cache', {
+                method: 'POST',
+            });
+            if (!res.ok) throw new Error('Cache update failed');
+            updateStatus('Package cache updated');
+        } catch (e) {
+            updateStatus(`Error: ${e.message}`);
+        }
+        btn.disabled = false;
+        btn.textContent = 'Refresh Cache';
+    }
+
+    // ---- Status ----
+
+    function updateStatus(text) {
+        if (statusEl) statusEl.textContent = text;
+    }
+
+    // ---- App registration ----
+
+    Atlus.registerApp('packages', {
+        title: 'Packages',
+
+        init(el) {
+            container = el;
+            container.classList.add('app-packages');
+
+            // Toolbar
+            const toolbar = document.createElement('div');
+            toolbar.className = 'pkg-toolbar';
+
+            searchInput = document.createElement('input');
+            searchInput.type = 'text';
+            searchInput.className = 'pkg-search';
+            searchInput.placeholder = 'Search packages…';
+            searchInput.addEventListener('input', () => {
+                clearTimeout(searchTimeout);
+                searchTimeout = setTimeout(() => {
+                    searchPackages(searchInput.value.trim());
+                }, 300);
+            });
+            toolbar.appendChild(searchInput);
+
+            const cacheBtn = document.createElement('button');
+            cacheBtn.className = 'pkg-cache-btn';
+            cacheBtn.textContent = 'Refresh Cache';
+            cacheBtn.addEventListener('click', () => refreshCache(cacheBtn));
+            toolbar.appendChild(cacheBtn);
+
+            container.appendChild(toolbar);
+
+            // Results list
+            listEl = document.createElement('div');
+            listEl.className = 'pkg-list';
+            listEl.innerHTML = '<div class="pkg-empty">Type at least 2 characters to search packages</div>';
+            container.appendChild(listEl);
+
+            // Status bar
+            statusEl = document.createElement('div');
+            statusEl.className = 'pkg-status';
+            statusEl.textContent = 'Ready';
+            container.appendChild(statusEl);
+
+            // Focus search
+            setTimeout(() => searchInput.focus(), 100);
+        },
+
+        destroy() {
+            clearTimeout(searchTimeout);
+            container = null;
+            searchInput = null;
+            listEl = null;
+            statusEl = null;
+            expandedPkg = null;
+        },
+    });
+})();
diff --git a/frontend/js/atlus.js b/frontend/js/atlus.js
index 9f46587..18813bd 100644
--- a/frontend/js/atlus.js
+++ b/frontend/js/atlus.js
@@ -382,16 +382,88 @@
         } catch (e) { /* ignore */ }
     }
 
+    // =====================================================================
+    // Panel — Update checker
+    // =====================================================================
+    let updateDismissed = false;
+
+    async function checkForUpdates() {
+        if (updateDismissed) return;
+        try {
+            const res = await Atlus.apiFetch('/api/updates/check');
+            if (!res.ok) return;
+            const data = await res.json();
+            const panel = $('#panelUpdates');
+            if (!panel) return;
+
+            if (data.available && data.behind_count > 0) {
+                showUpdateToast(panel, data);
+            } else {
+                panel.classList.add('hidden');
+            }
+        } catch (e) { /* ignore */ }
+    }
+
+    function showUpdateToast(panel, data) {
+        panel.classList.remove('hidden');
+        panel.innerHTML = `
+            <div class="update-toast">
+                <button class="update-dismiss" title="Dismiss">&times;</button>
+                <div class="update-toast-title">Update available</div>
+                <div class="update-toast-info">${data.behind_count} commit${data.behind_count !== 1 ? 's' : ''} behind (${data.remote_hash})</div>
+                <button class="update-toast-btn">Install Update</button>
+            </div>
+        `;
+
+        panel.querySelector('.update-dismiss').addEventListener('click', () => {
+            panel.classList.add('hidden');
+            updateDismissed = true;
+        });
+
+        panel.querySelector('.update-toast-btn').addEventListener('click', async (e) => {
+            const btn = e.target;
+            btn.disabled = true;
+            btn.textContent = 'Updating…';
+
+            try {
+                const res = await Atlus.apiFetch('/api/updates/apply', { method: 'POST' });
+                if (res.ok) {
+                    btn.textContent = 'Restarting…';
+                    // Server will restart — try to reload after a delay
+                    setTimeout(() => attemptReload(0), 4000);
+                } else {
+                    btn.textContent = 'Update failed';
+                    btn.disabled = false;
+                }
+            } catch (e) {
+                // Connection lost = server restarting
+                btn.textContent = 'Restarting…';
+                setTimeout(() => attemptReload(0), 4000);
+            }
+        });
+    }
+
+    function attemptReload(attempt) {
+        if (attempt > 10) return; // Give up after ~30s
+        fetch('/desktop', { method: 'HEAD' })
+            .then(() => window.location.reload())
+            .catch(() => setTimeout(() => attemptReload(attempt + 1), 3000));
+    }
+
     // =====================================================================
     // Init
     // =====================================================================
     loadHostname();
     loadPanelServices();
     connectStats();
+    checkForUpdates();
 
     // Refresh services panel periodically
     setInterval(loadPanelServices, 30000);
 
+    // Check for updates every 30 minutes
+    setInterval(checkForUpdates, 30 * 60 * 1000);
+
     // Expose for app modules
     window.Atlus.openApp = openApp;
     window.Atlus.closeApp = closeApp;