Freeze duplicate app copies; ownership table and CI guard (repo reorg phase 1)

.github/workflows/frozen-paths.yml

@@ -0,0 +1,34 @@
+name: Frozen paths guard
+
+on:
+  pull_request:
+    types: [opened, synchronize, reopened, labeled, unlabeled]
+    paths:
+      - 'rust/**'
+      - 'mseries/**'
+      - '.github/workflows/frozen-paths.yml'
+
+permissions:
+  contents: read
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: ${{ github.event_name == 'pull_request' }}
+
+jobs:
+  guard:
+    name: Reject edits to frozen app copies
+    runs-on: ubuntu-latest
+    timeout-minutes: 5
+    steps:
+      - uses: actions/checkout@v7
+        with:
+          fetch-depth: 0
+      - name: Guard tests
+        run: python3 -B -m unittest discover -s mseries/ci -p 'test_check_frozen.py' -v
+      - name: Check changed paths against mseries/ci/frozen-paths.txt
+        env:
+          BASE: ${{ github.event.pull_request.base.sha }}
+          HEAD: ${{ github.event.pull_request.head.sha }}
+          ALLOW: ${{ contains(github.event.pull_request.labels.*.name, 'allow-frozen-edit') && '--allow' || '' }}
+        run: python3 mseries/ci/check_frozen.py $ALLOW "$BASE" "$HEAD"

AGENTS.md

@@ -24,6 +24,11 @@
 > reload or recovery from a confirmed panel defect, and state when code is installed but not yet loaded. Record the pin,
 > what you re-verified and what is still unverified in `mseries/OS9-HANDOFF.md`.
 
+- **One source of truth per app:** SDK crates and apps (`rust/msdk*`, `rust/mseries-*` except the compositor,
+  `mseries/sdk-*`, `battery`, `phone-setup`, `polybagger-print-manager`, `messages-mcp` and more) are edited in
+  [techmore/mseries-sdk-apps](https://github.com/techmore/mseries-sdk-apps). The copies here are frozen snapshots
+  (`FROZEN.md` in each dir); CI rejects PR edits unless labeled `allow-frozen-edit`. Table and full list:
+  [mseries/REPO-OWNERSHIP.md](mseries/REPO-OWNERSHIP.md).
 - Keep `mseries/OS9-HANDOFF.md`, `mseries/ROADMAP.md`, and relevant public
   status pages current as work lands. Record concrete changes, commands,
   verification results, blockers, and the next task.

README.md

@@ -1,5 +1,9 @@
 # elementary OS for Apple Silicon (M-series)
 
+> **Source of truth for apps:** the Rust Pantheon SDK and first-party apps are edited in
+> [techmore/mseries-sdk-apps](https://github.com/techmore/mseries-sdk-apps); their copies here are frozen
+> snapshots guarded by CI. See [mseries/REPO-OWNERSHIP.md](mseries/REPO-OWNERSHIP.md).
+
 elementary OS 9 on an M1/M2-family Mac, alongside macOS: Asahi Alarm as the boot
 layer, elementary (Pantheon) as the system you use, installed with one command,
 full-disk encryption included. Modelled on [omarchy-mac](https://github.com/omarchy-mac/omarchy-mac),

mseries/REPO-OWNERSHIP.md

@@ -0,0 +1,73 @@
+# Repository ownership (phase 1: one writable source per app)
+
+Status 2026-10-27. Implements the first step of [REPOSITORY-TOPOLOGY.md](REPOSITORY-TOPOLOGY.md):
+apps now live in [`techmore/mseries-sdk-apps`](https://github.com/techmore/mseries-sdk-apps)
+(compared at `origin/main` `40d4445c4414e83da5893500528e088ec599af30`). The OS repo still
+holds older duplicate copies. Those are now **frozen migration snapshots**: nothing is
+deleted, moved or archived, but PRs that edit them fail the `Frozen paths guard` CI check
+(label `allow-frozen-edit` overrides). The guarded list is
+[`ci/frozen-paths.txt`](ci/frozen-paths.txt); each frozen directory has a `FROZEN.md`.
+Branch rules: [BRANCHING.md](BRANCHING.md).
+
+Method: real trees compared with `diff -rq` between `git archive origin/main` of the SDK repo
+and this checkout (`dev` at `7478f2fe`). Phase 2 (kernel split) is owned by another session;
+Kernel rows are only tagged.
+
+## Apps already owned by the SDK repo (frozen here)
+
+| Path in OS repo | SDK repo state |
+| --- | --- |
+| `rust/claude-pantheon-rs` | **Newer** in SDK (plugin registry; 6 files only in SDK, 7 changed) |
+| `rust/mseries-messages` | **Newer** in SDK (Signal channel, `signal.rs`; 5 files changed) |
+| `rust/mseries-pantheon-kit` | **Newer** in SDK (diff timeline, `timeline.rs`; `lib.rs` changed) |
+| `mseries/battery` | One test file differs (`test_battery_enhance.py`); reconcile in SDK |
+| `mseries/diskspace-app` | Identical except `test.sh` |
+| `mseries/phone-setup` | Identical (SDK tree has a stray `__pycache__`; remove there) |
+| `rust/granite-smoke`, `msdk`, `msdk-gtk`, `mseries-ai`, `mseries-apple-dev`, `mseries-broker`, `mseries-diskspace`, `mseries-dock`, `mseries-greeter`, `mseries-power`, `mseries-reply`, `mseries-signal-import`, `mseries-system-monitor`, `mseries-update-core`, `mseries-updates` | Identical |
+| `mseries/sdk-tests`, `sdk-bench`, `sdk-status-host`, `messages-mcp`, `polybagger-print-manager`, `updates-app`, `fleet-shepherd` | Identical |
+| Docs: `APP-BUILDING-GUIDE.md`, `DOCK-SDK-SPEC.md`, `RUST-PANTHEON-SDK.md`, `RUST-PANTHEON-CLIENTS.md`, `SDK-*.md` (13 files) | Identical (guarded by path; no banner added) |
+
+Caveats: `mseries-update-core` still bundles the OS-owned root helper with the app-facing
+contract, and `mseries-power` backs the OS power policy. Both are frozen per the plan; use the
+label for helper/policy changes until the contract split in REPOSITORY-TOPOLOGY.md lands.
+Also identical but not frozen (decide in later phases): `BATTERY-ETA.md`, `BATTERY-PROFILER.md`,
+`MESSAGES-PARITY.md`, `MESSAGING-STATUS.md`, `install-battery*.sh`, `install-phone-setup.sh`,
+`install-messaging-bluez.sh`.
+
+## SDK-only (nothing to freeze here)
+
+`rust/mseries-image-studio`, `mseries/image-studio`, `rust/torrential`. In flight: Signal Pantheon as
+`mseries/signal-pantheon` (SDK PR #14). SDK `rust/Cargo.toml` lists `mseries-image-studio` and
+drops `pantheon-compositor`; the OS workspace keeps the compositor, so the two `Cargo.toml` /
+`Cargo.lock` files are intentionally independent and not frozen.
+
+## Exists only in the OS repo: candidates to import (not imported now)
+
+| Path | Note |
+| --- | --- |
+| `mseries/claude-pantheon-native` | C/Meson client; SDK has the Rust `claude-pantheon-rs` only |
+| `mseries/torrential-native`, `mseries/TORRENTIAL-PORT.md` | SDK imported `rust/torrential` with history (#15); confirm what native/port material is still needed |
+| `mseries/signal-wingpanel`, `signal-launcher.sh`, `install-signal*.sh`, `SIGNAL-PANTHEON-DESIGN.md` | Signal Pantheon moves with SDK PR #14; deferred per MESSAGING-STATUS.md |
+| `mseries/smart-reply`, `SMART-REPLY-DESIGN.md`, `install-smart-reply.sh` | Pairs with `rust/mseries-reply` |
+| `mseries/tether`, `TETHER-CONTINUITY.md`, `omdrop*`, `orchard*`, `horizon-rdp`, `opencode-desktop` | Standalone apps; classification needs an owner decision |
+
+## Classification of the rest of `rust/` and `mseries/`
+
+| Class | Paths |
+| --- | --- |
+| OS (stays) | `rust/pantheon-compositor` (SDK keeps only the vendored protocol XML; its drift check treats this repo as source of truth), `pantheon-rust-compositor`, `gala-*`, `window-*`, `dock-*`, `docked-lid`, `quick-settings`, `panel*`, `wingpanel-tests`, `*-wingpanel` and `install-*wingpanel*` (clockright, codexbar, repobar, share-eyes, t3, troubleshooter), `codexbar*`, `repobar*`, `theme`, `desktop-notifications`, `dark-mode`, `display-*`, `brightness`, `keyboard-backlight`, `audio`, `airplay`, `power`, `touchid-settings`, `icloud-passwords`, `image-actions`, `screenshot-shelf`, `work-mode`, `ui-scale`, `netspeed`, `update`, `releases`, `release`, `debs`, `packages.arm64`, `patches`, `customizations`, `minimal-system`, `enhance*`, `user-enhance.sh`, `post-install.sh`, `validate.sh`, `ci`, remaining `install-*.sh`, `lib-*.sh`, `test-*`, `machine-lab`, `vms`, `muvm-source.sh`, `modrun.py`, `maintenance`, `procedures`, `tools` |
+| Kernel (phase 2, other session) | `aurora`, `aurora-sep`, `aurora-touchid*`, `AURORA-SECOND-BOOT.md`, `boot`, `fairydust`, `hardware`, `lid-trace`, `KERNEL-*.md`, `check-kernel-config.py`, `test-kernel-config.py`, `install-initramfs-crossbar.sh`, `install-boot-isolation.sh`, `USB-C-DOCK-DP-ALT-MODE.md`, `FIRMWARE-WIFI.md`, `upstream`, `upstreams`, `upstream-audits`, `UPSTREAM-PINS.md` |
+| Hub / docs | All other top-level `*.md` (ROADMAP, OS9-HANDOFF, BRANCHING, REPOSITORY-TOPOLOGY, PORT-MAP, audits, designs, runbooks), `receipts`, `benchmarks`, `local-ai`, `dictation`, `docs/` and the Pages site |
+
+The Kernel and OS lists are grouped by name and judgment, not by exhaustive file audit; items
+that fall between classes should be settled in phase 2 or later.
+
+## Where to edit
+
+| You are changing | Edit in |
+| --- | --- |
+| Anything listed under "already owned by the SDK repo" | `techmore/mseries-sdk-apps` |
+| Compositor, panel, installers, packaging, OS services | this repo |
+| Kernel/boot | this repo until phase 2 lands |
+
+Cutover revision recorded in every `FROZEN.md`: `mseries-sdk-apps@40d4445c4414e83da5893500528e088ec599af30`.

mseries/battery/FROZEN.md

@@ -0,0 +1,12 @@
+# FROZEN: edit in mseries-sdk-apps
+
+The writable source of truth for this directory is
+[`techmore/mseries-sdk-apps`](https://github.com/techmore/mseries-sdk-apps) at `mseries/battery`.
+This copy is a frozen migration snapshot kept for rollback and reference
+(see [REPOSITORY-TOPOLOGY.md](/mseries/REPOSITORY-TOPOLOGY.md), staged transition step 5).
+
+- Cutover revision: `mseries-sdk-apps@40d4445c4414e83da5893500528e088ec599af30` (origin/main, 2026-10-27)
+- State at cutover: one test file (test_battery_enhance.py) differs; reconcile in the SDK repo
+- Make changes in `mseries-sdk-apps`, not here. A PR that edits this directory fails the
+  `Frozen paths guard` check unless it carries the `allow-frozen-edit` label.
+- Nothing here has been deleted or moved. Ownership table: [REPO-OWNERSHIP.md](/mseries/REPO-OWNERSHIP.md).

mseries/ci/check_frozen.py

@@ -0,0 +1,61 @@
+#!/usr/bin/env python3
+"""Fail when a change touches a path whose source of truth moved to mseries-sdk-apps.
+
+Usage: check_frozen.py [--allow] BASE HEAD
+Paths come from mseries/ci/frozen-paths.txt. FROZEN.md files are exempt.
+--allow (the `allow-frozen-edit` label) reports the hits but exits 0.
+"""
+from pathlib import Path
+import subprocess
+import sys
+
+ROOT = Path(__file__).resolve().parents[2]
+MANIFEST = ROOT / 'mseries/ci/frozen-paths.txt'
+
+
+def frozen_paths():
+    lines = (line.strip() for line in MANIFEST.read_text().splitlines())
+    return [line.rstrip('/') for line in lines if line and not line.startswith('#')]
+
+
+def is_frozen(path, frozen):
+    if path.rsplit('/', 1)[-1] == 'FROZEN.md':
+        return False
+    return any(path == f or path.startswith(f + '/') for f in frozen)
+
+
+def hits(changed, frozen):
+    return sorted(p for p in changed if is_frozen(p, frozen))
+
+
+def changed_files(base, head):
+    # --no-renames lists both sides of a rename, so a move out of a frozen dir is caught.
+    out = subprocess.run(
+        ['git', 'diff', '--name-only', '--no-renames', f'{base}...{head}'],
+        cwd=ROOT, check=True, capture_output=True, text=True).stdout
+    return out.splitlines()
+
+
+def main(argv):
+    allow = '--allow' in argv
+    args = [a for a in argv if a != '--allow']
+    if len(args) != 2:
+        print(__doc__, file=sys.stderr)
+        return 2
+    found = hits(changed_files(*args), frozen_paths())
+    if not found:
+        print('No frozen paths modified.')
+        return 0
+    print('Frozen paths modified (source of truth: techmore/mseries-sdk-apps):')
+    for path in found:
+        print(f'  {path}')
+    if allow:
+        print('Label allow-frozen-edit is set; allowing.')
+        return 0
+    print('::error::Edit these in techmore/mseries-sdk-apps, or add the '
+          '`allow-frozen-edit` label to this PR. See mseries/REPO-OWNERSHIP.md.')
+    return 1
+
+
+if __name__ == '__main__':
+    sys.exit(main(sys.argv[1:]))

mseries/ci/frozen-paths.txt

@@ -0,0 +1,46 @@
+# Paths whose writable source of truth is techmore/mseries-sdk-apps.
+# One repo-relative path per line; a directory covers everything below it.
+# See mseries/REPO-OWNERSHIP.md. FROZEN.md files are exempt from the guard.
+rust/granite-smoke
+rust/claude-pantheon-rs
+rust/msdk
+rust/msdk-gtk
+rust/mseries-ai
+rust/mseries-apple-dev
+rust/mseries-broker
+rust/mseries-diskspace
+rust/mseries-dock
+rust/mseries-greeter
+rust/mseries-messages
+rust/mseries-pantheon-kit
+rust/mseries-power
+rust/mseries-reply
+rust/mseries-signal-import
+rust/mseries-system-monitor
+rust/mseries-update-core
+rust/mseries-updates
+mseries/sdk-tests
+mseries/sdk-bench
+mseries/sdk-status-host
+mseries/phone-setup
+mseries/battery
+mseries/polybagger-print-manager
+mseries/messages-mcp
+mseries/diskspace-app
+mseries/updates-app
+mseries/fleet-shepherd
+mseries/APP-BUILDING-GUIDE.md
+mseries/DOCK-SDK-SPEC.md
+mseries/RUST-PANTHEON-SDK.md
+mseries/RUST-PANTHEON-CLIENTS.md
+mseries/SDK-AGENT-SURFACE.md
+mseries/SDK-AUDIT-2026-10-23.md
+mseries/SDK-COMPATIBILITY.md
+mseries/SDK-COMPLETION.md
+mseries/SDK-CORNERS.md
+mseries/SDK-DESIGN-LANGUAGE.md
+mseries/SDK-GOLDEN-PATH.md
+mseries/SDK-INTROSPECTION-AND-STREAMING.md
+mseries/SDK-PARITY.md
+mseries/SDK-RUNTIME-CONTRACT.md
+mseries/SDK-USAGE-DATA.md

mseries/ci/test_check_frozen.py

@@ -0,0 +1,21 @@
+import unittest
+
+import check_frozen as cf
+
+FROZEN = ['rust/msdk', 'mseries/SDK-PARITY.md']
+
+
+class FrozenTests(unittest.TestCase):
+    def test_hits_and_exemptions(self):
+        changed = ['rust/msdk/src/lib.rs', 'rust/msdk-gtk/a.rs', 'rust/msdk/FROZEN.md',
+                   'mseries/SDK-PARITY.md', 'mseries/ROADMAP.md']
+        self.assertEqual(cf.hits(changed, FROZEN),
+                         ['mseries/SDK-PARITY.md', 'rust/msdk/src/lib.rs'])
+
+    def test_manifest_paths_exist(self):
+        for path in cf.frozen_paths():
+            self.assertTrue((cf.ROOT / path).exists(), path)
+
+
+if __name__ == '__main__':
+    unittest.main()

mseries/diskspace-app/FROZEN.md

@@ -0,0 +1,12 @@
+# FROZEN: edit in mseries-sdk-apps
+
+The writable source of truth for this directory is
+[`techmore/mseries-sdk-apps`](https://github.com/techmore/mseries-sdk-apps) at `mseries/diskspace-app`.
+This copy is a frozen migration snapshot kept for rollback and reference
+(see [REPOSITORY-TOPOLOGY.md](/mseries/REPOSITORY-TOPOLOGY.md), staged transition step 5).
+
+- Cutover revision: `mseries-sdk-apps@40d4445c4414e83da5893500528e088ec599af30` (origin/main, 2026-10-27)
+- State at cutover: identical except test.sh
+- Make changes in `mseries-sdk-apps`, not here. A PR that edits this directory fails the
+  `Frozen paths guard` check unless it carries the `allow-frozen-edit` label.
+- Nothing here has been deleted or moved. Ownership table: [REPO-OWNERSHIP.md](/mseries/REPO-OWNERSHIP.md).

mseries/fleet-shepherd/FROZEN.md

@@ -0,0 +1,12 @@
+# FROZEN: edit in mseries-sdk-apps
+
+The writable source of truth for this directory is
+[`techmore/mseries-sdk-apps`](https://github.com/techmore/mseries-sdk-apps) at `mseries/fleet-shepherd`.
+This copy is a frozen migration snapshot kept for rollback and reference
+(see [REPOSITORY-TOPOLOGY.md](/mseries/REPOSITORY-TOPOLOGY.md), staged transition step 5).
+
+- Cutover revision: `mseries-sdk-apps@40d4445c4414e83da5893500528e088ec599af30` (origin/main, 2026-10-27)
+- State at cutover: identical to the SDK copy
+- Make changes in `mseries-sdk-apps`, not here. A PR that edits this directory fails the
+  `Frozen paths guard` check unless it carries the `allow-frozen-edit` label.
+- Nothing here has been deleted or moved. Ownership table: [REPO-OWNERSHIP.md](/mseries/REPO-OWNERSHIP.md).

mseries/messages-mcp/FROZEN.md

@@ -0,0 +1,12 @@
+# FROZEN: edit in mseries-sdk-apps
+
+The writable source of truth for this directory is
+[`techmore/mseries-sdk-apps`](https://github.com/techmore/mseries-sdk-apps) at `mseries/messages-mcp`.
+This copy is a frozen migration snapshot kept for rollback and reference
+(see [REPOSITORY-TOPOLOGY.md](/mseries/REPOSITORY-TOPOLOGY.md), staged transition step 5).
+
+- Cutover revision: `mseries-sdk-apps@40d4445c4414e83da5893500528e088ec599af30` (origin/main, 2026-10-27)
+- State at cutover: identical to the SDK copy
+- Make changes in `mseries-sdk-apps`, not here. A PR that edits this directory fails the
+  `Frozen paths guard` check unless it carries the `allow-frozen-edit` label.
+- Nothing here has been deleted or moved. Ownership table: [REPO-OWNERSHIP.md](/mseries/REPO-OWNERSHIP.md).

mseries/phone-setup/FROZEN.md

@@ -0,0 +1,12 @@
+# FROZEN: edit in mseries-sdk-apps
+
+The writable source of truth for this directory is
+[`techmore/mseries-sdk-apps`](https://github.com/techmore/mseries-sdk-apps) at `mseries/phone-setup`.
+This copy is a frozen migration snapshot kept for rollback and reference
+(see [REPOSITORY-TOPOLOGY.md](/mseries/REPOSITORY-TOPOLOGY.md), staged transition step 5).
+
+- Cutover revision: `mseries-sdk-apps@40d4445c4414e83da5893500528e088ec599af30` (origin/main, 2026-10-27)
+- State at cutover: identical (SDK tree only adds a stray __pycache__)
+- Make changes in `mseries-sdk-apps`, not here. A PR that edits this directory fails the
+  `Frozen paths guard` check unless it carries the `allow-frozen-edit` label.
+- Nothing here has been deleted or moved. Ownership table: [REPO-OWNERSHIP.md](/mseries/REPO-OWNERSHIP.md).

mseries/polybagger-print-manager/FROZEN.md

@@ -0,0 +1,12 @@
+# FROZEN: edit in mseries-sdk-apps
+
+The writable source of truth for this directory is
+[`techmore/mseries-sdk-apps`](https://github.com/techmore/mseries-sdk-apps) at `mseries/polybagger-print-manager`.
+This copy is a frozen migration snapshot kept for rollback and reference
+(see [REPOSITORY-TOPOLOGY.md](/mseries/REPOSITORY-TOPOLOGY.md), staged transition step 5).
+
+- Cutover revision: `mseries-sdk-apps@40d4445c4414e83da5893500528e088ec599af30` (origin/main, 2026-10-27)
+- State at cutover: identical to the SDK copy
+- Make changes in `mseries-sdk-apps`, not here. A PR that edits this directory fails the
+  `Frozen paths guard` check unless it carries the `allow-frozen-edit` label.
+- Nothing here has been deleted or moved. Ownership table: [REPO-OWNERSHIP.md](/mseries/REPO-OWNERSHIP.md).

mseries/sdk-bench/FROZEN.md

@@ -0,0 +1,12 @@
+# FROZEN: edit in mseries-sdk-apps
+
+The writable source of truth for this directory is
+[`techmore/mseries-sdk-apps`](https://github.com/techmore/mseries-sdk-apps) at `mseries/sdk-bench`.
+This copy is a frozen migration snapshot kept for rollback and reference
+(see [REPOSITORY-TOPOLOGY.md](/mseries/REPOSITORY-TOPOLOGY.md), staged transition step 5).
+
+- Cutover revision: `mseries-sdk-apps@40d4445c4414e83da5893500528e088ec599af30` (origin/main, 2026-10-27)
+- State at cutover: identical to the SDK copy
+- Make changes in `mseries-sdk-apps`, not here. A PR that edits this directory fails the
+  `Frozen paths guard` check unless it carries the `allow-frozen-edit` label.
+- Nothing here has been deleted or moved. Ownership table: [REPO-OWNERSHIP.md](/mseries/REPO-OWNERSHIP.md).

mseries/sdk-status-host/FROZEN.md

@@ -0,0 +1,12 @@
+# FROZEN: edit in mseries-sdk-apps
+
+The writable source of truth for this directory is
+[`techmore/mseries-sdk-apps`](https://github.com/techmore/mseries-sdk-apps) at `mseries/sdk-status-host`.
+This copy is a frozen migration snapshot kept for rollback and reference
+(see [REPOSITORY-TOPOLOGY.md](/mseries/REPOSITORY-TOPOLOGY.md), staged transition step 5).
+
+- Cutover revision: `mseries-sdk-apps@40d4445c4414e83da5893500528e088ec599af30` (origin/main, 2026-10-27)
+- State at cutover: identical to the SDK copy
+- Make changes in `mseries-sdk-apps`, not here. A PR that edits this directory fails the
+  `Frozen paths guard` check unless it carries the `allow-frozen-edit` label.
+- Nothing here has been deleted or moved. Ownership table: [REPO-OWNERSHIP.md](/mseries/REPO-OWNERSHIP.md).

mseries/sdk-tests/FROZEN.md

@@ -0,0 +1,12 @@
+# FROZEN: edit in mseries-sdk-apps
+
+The writable source of truth for this directory is
+[`techmore/mseries-sdk-apps`](https://github.com/techmore/mseries-sdk-apps) at `mseries/sdk-tests`.
+This copy is a frozen migration snapshot kept for rollback and reference
+(see [REPOSITORY-TOPOLOGY.md](/mseries/REPOSITORY-TOPOLOGY.md), staged transition step 5).
+
+- Cutover revision: `mseries-sdk-apps@40d4445c4414e83da5893500528e088ec599af30` (origin/main, 2026-10-27)
+- State at cutover: identical to the SDK copy
+- Make changes in `mseries-sdk-apps`, not here. A PR that edits this directory fails the
+  `Frozen paths guard` check unless it carries the `allow-frozen-edit` label.
+- Nothing here has been deleted or moved. Ownership table: [REPO-OWNERSHIP.md](/mseries/REPO-OWNERSHIP.md).