ARC Control
Claude on your server, from your phone.
Auto Blocker is on by default and silently blocks every sideloaded app. It is the usual reason a valid APK says “App not installed”.
Settings → Security and privacy → Auto Blocker → off.
Install
- Turn off Auto Blocker, as above.
- Tap Download APK, then open the file. If asked, allow your browser to install unknown apps.
- Open the app, go to Settings, and paste the shell and desktop passwords. They ship empty on purpose — a downloadable APK carrying them would hand anyone a root shell.
- Turn off Auto Blocker, as above — it is on by default on the Tab S9 too.
- Tap Download APK, then open the file. If asked, allow your browser to install unknown apps.
- Open the app, go to Settings, and paste the shell and desktop passwords. They ship empty on purpose — a downloadable APK carrying them would hand anyone a root shell.
- Turn the tablet landscape. The rail widens to labels and the editor puts the file tree beside the file; both follow the screen’s width, not the device, so a keyboard cover changes nothing.
Updates arrive inside the app from then on. It checks on launch and installs only when you confirm.
The same APK. There is no separate tablet build to keep in step — the layout switches at 600dp of width, so one artifact and one update channel serve both. Measured on a 2560×1600 Tab S9 profile.
Inside the app
Claude
Claude Code on the hub, in a session that survives your phone losing signal or locking. Reopen and it is exactly where you left it.
Editor
VS Code over the tunnel, with buttons for the side bar, command palette and terminal panel.
Mesh
Every node with live port checks. A node reads down when nothing is listening, even if it answers a ping. Pull down to rescan.
Desktop
The hub's full XFCE session over noVNC, if you ever want a GUI.
Verify the download
If the install fails with “package appears to be invalid”, the file truncated — re-download and compare:
sha256 b7b6b34a85cc4cf4603f26b02571ed0392fdb912b241a5081a690f50fc555afa
Size should be exactly 11620985 bytes.
Won't connect?
The Claude, Mesh and Desktop tabs reach the hub over Tailscale — if the phone is off the tailnet they will sit at a blank screen. Open Tailscale and reconnect.
The Editor tab relays through Microsoft, so it works on mobile data with no tailnet at all.