diff --git a/docs/power-and-lock.md b/docs/power-and-lock.md
index 3da346d..3514450 100644
--- a/docs/power-and-lock.md
+++ b/docs/power-and-lock.md
@@ -190,3 +190,33 @@ last frame; the lock screen's own update follows when `user.slice` thaws.
 `omarchy-tablet-power` (one process per press, state in brightness and files, a
 fixed window after resume), `omarchy-screen-toggle` and `omarchy-greeter-wake`
 (a second and third writer of the backlight).
+
+## J71t Mac USB charging candidate
+
+`system/overlay/etc/orchard/mac-usb-current` opts J71t into the matching
+Orchard root initrd's Mac-current compatibility profile. It selects
+05ac:1014 with ACM+NCM and 500 mA descriptor power. Only a real host vendor
+grant allows the kernel charger to ramp higher, within board/pack limits.
+This requires the 2026-11-08 hardware changes and a freshly matched initrd;
+the file alone has no effect with older hardware bundles. No systemd gadget
+service rewrites the initrd's gadget or serial during switch-root.
+
+This candidate has host tests but no device charging result. Unlock the Mac,
+approve the new accessory and, if needed, reconnect it. The BOOT serial is
+retained for Orchard discovery and can require fresh authorization each boot.
+To disable the profile, remove `/etc/orchard/mac-usb-current` and reboot.
+No PMIC current limit or host authorization policy is forced by this file.
+
+The USB recovery service recognizes the bound NCM or ECM function. In addition
+to its carrier-loss handler, it probes 172.16.42.2 through usb0 while carrier
+and UDC configuration remain up. After a peer has replied once, 15 seconds
+of failed replies trigger an `ip link` down/up cycle, without rebinding UDC
+or disturbing ACM/charging. It logs `usb0-stall-bounce` to journal and kmsg,
+including packet/drop counters. There is a 60-second cooldown and at most
+three attempts without a new successful reply. Suspended, unconfigured,
+unbound, admin-down and VBUS-absent links do not trigger this fallback;
+unknown charging current_max does not prevent network recovery. Hosts that
+never answer ICMP do not arm it. All recovery remains disabled on NBD roots.
+The runner's transient oi-usb0-watchdog should not run alongside this service
+for an acceptance test; count all bounce markers and require zero for a clean
+NCM sustained-transfer result.
diff --git a/system/overlay/etc/orchard/mac-usb-current b/system/overlay/etc/orchard/mac-usb-current
new file mode 100644
index 0000000..d00491f
--- /dev/null
+++ b/system/overlay/etc/orchard/mac-usb-current
@@ -0,0 +1 @@
+1
diff --git a/tests/test_mac_usb_current.py b/tests/test_mac_usb_current.py
new file mode 100644
index 0000000..c6f718e
--- /dev/null
+++ b/tests/test_mac_usb_current.py
@@ -0,0 +1,18 @@
+"""The system opts in through data, leaving USB ownership to the initrd."""
+from pathlib import Path
+import unittest
+
+ROOT = Path(__file__).resolve().parents[1]
+
+class MacUsbCurrent(unittest.TestCase):
+    def test_profile_is_exact_opt_in_for_matching_hardware(self):
+        self.assertEqual((ROOT/'system/overlay/etc/orchard/mac-usb-current').read_bytes(), b'1\n')
+        self.assertIn('freshly matched initrd', (ROOT/'docs/power-and-lock.md').read_text())
+
+    def test_system_root_includes_the_opt_in(self):
+        from release.public_root import system_files
+        data, mode = system_files()['etc/orchard/mac-usb-current']
+        self.assertEqual((data, mode), (b'1\n', 0o644))
+
+if __name__ == '__main__':
+    unittest.main()
diff --git a/tests/test_tablet_port.py b/tests/test_tablet_port.py
new file mode 100644
index 0000000..9e73609
--- /dev/null
+++ b/tests/test_tablet_port.py
@@ -0,0 +1,33 @@
+import importlib.machinery
+import importlib.util
+import json
+import os
+from pathlib import Path
+import struct
+import subprocess
+import unittest
+from unittest.mock import patch
+import xml.etree.ElementTree as ET
+
+PROJECT = Path(__file__).resolve().parents[1]
+
+def load(name, path):
+    loader=importlib.machinery.SourceFileLoader(name,str(PROJECT/path))
+    spec=importlib.util.spec_from_loader(name,loader)
+    mod=importlib.util.module_from_spec(spec); loader.exec_module(mod); return mod
+
+p=load('power','system/overlay/usr/libexec/omarchy-powerd')
+
+class TabletPort(unittest.TestCase):
+    pass
+
+
+
+
+
+
+
+
+
+
+if __name__=='__main__': unittest.main()