# Serenity Cleanup Wave 1 Plan

Status: approved planning baseline for the first safe cleanup pass on Serenity.

## Goal

Reduce obvious legacy clutter on Serenity without breaking the still-needed torrent/media-locality group or the still-needed Serenity Newt path.

This wave is intentionally conservative.
It does not move qBittorrent/ARR off Serenity yet.
It does not retire Serenity yet.
It does not delete databases that still back live apps.

## Operator decisions already resolved

- Nothing should intentionally remain on Serenity after PD owns the disks locally.
- Technitium already covers the DNS role John wants.
- Serenity Pi-hole remnants should be treated as removable.
- Serenity Newt is still needed and must be preserved.
- GameVault and RomM should migrate, not be pruned.
- Final end-state remains:
  - move qbit + ARR family to PD after storage cutover
  - leave no intentional production app role on Serenity
  - retire Serenity entirely

## Scope of cleanup wave 1

Wave 1 includes only these categories:

1. Remove legacy DNS clutter that should no longer be serving production traffic.
2. Remove obviously stale created/exited containers.
3. Document migration order for the two database-backed apps that should move later.

Wave 1 explicitly excludes:

- qbit
- GluetunVPN
- qbit_manage
- prowlarr
- sonarr
- sonarr-anime
- radarr
- lidarr
- readarr
- readarr-epub
- bazarr
- autobrr
- unpackerr
- Notifiarr
- shelfmark
- Newt
- technitium-dns-pilot
- GameVault
- romm
- reranker

## Live facts this plan is based on

From the live Serenity audit:

- ARR/torrent locality is still tied to `/mnt/user/data`
- `GameVault` points at local Postgres on `10.5.30.5:5432`
- `RomM` points at local MariaDB on `10.5.30.5:3306`
- live container env inspection still shows those explicit DB_HOST/DB_PORT bindings on 2026-05-25
- quick live checks did not surface immediate DB dependencies for `Wizarr`, `Shelfmark`, or `Notifiarr`
- `Newt` is still needed
- legacy Pi-hole containers are still running even though Technitium is now the intended DNS path
- Serenity Newt-backed Pangolin routes still had stale health-check hostnames pointing at old `10.5.1.5` even though their target IPs had already been rewritten to `localhost`/`10.5.30.5`
- a temporary `10.5.1.5/32` alias on `br0` validated the diagnosis, but it was removed because the old IP is no longer allowed on that VLAN
- authoritative Pangolin cleanup was then completed by rewriting the audited Serenity target set to `10.5.30.5` for both routing and health checks, removing the need for any legacy-IP workaround

## Wave 1 current execution status

Live execution on 2026-05-25 established:
- `Huntarr` and `omegabrr` were low-risk stale stopped containers and were removed from Serenity
- the recent non-running `Created` containers (`calibre-web`, `SuggestArr`, `Cleanuparr`, `calibre`, `agregarr`) were metadata-verified and then removed after confirming they were still only `Created`, had `restart=no`, and were not live workloads
- `Unraid-Cloudflared-Tunnel` was audited, stopped, and removed after verification showed it was only transport-alive and no current public traffic depended on it
- the Serenity Pi-hole HA stack (`binhex-official-pihole`, `pihole-serenity`, `unbound-pihole-serenity`, `keepalived-pihole-serenity`) was then stopped and removed after live mixed-host DNS checks confirmed the Technitium path remained healthy without it

## Wave 1-A: legacy Pi-hole removal

### Target containers

- `binhex-official-pihole`
- `pihole-serenity`
- `unbound-pihole-serenity`
- `keepalived-pihole-serenity`

### Why they are in scope

- They are legacy DNS/HA remnants.
- Current homelab docs describe the active internal DNS path as the Technitium trio.
- Operator confirmed Technitium covers the intended DNS role.
- Keeping old DNS stacks around increases confusion and future troubleshooting blast radius.

### Preconditions

Before removal, verify only these read-only checks:

1. Serenity Technitium backup node is healthy.
2. DHCP-advertised resolver set is still PD/NOMAD/Serenity Technitium, not Pi-hole.
3. No Pangolin route, bookmark, or admin workflow still intentionally points at a Pi-hole UI.
4. No host on the LAN still relies on the old Pi-hole admin port out of habit.

### Removal order

1. stop `keepalived-pihole-serenity`
2. stop `pihole-serenity`
3. stop `unbound-pihole-serenity`
4. stop `binhex-official-pihole`
5. verify Technitium-only DNS behavior still looks normal
6. remove the stopped containers
7. archive or delete their stale appdata only after a short observation window

### Verification after removal

- Serenity Technitium container remained healthy
- mixed-host DNS checks stayed good after removal:
  - from NOMAD, `10.5.30.8` and `10.5.30.10` still resolved both public and homelab names
  - from PD, `10.5.30.9` and `10.5.30.10` still resolved both public and homelab names
- `10.5.30.53` continued answering DNS even after Serenity Pi-hole removal, confirming it is no longer tied to the removed Serenity Pi-hole containers
- no immediate client-facing DNS regression was observed during the removal window
- no public regression was observed on sampled hostnames such as `panel.paccoco.com` and `audiobookshelf.paccoco.com`

## Wave 1-B: stale container pruning

### Created-only clutter to remove

- `calibre-web`
- `SuggestArr`
- `Cleanuparr`
- `calibre`
- `agregarr`

### Exited clutter to remove

- `Huntarr`
- `omegabrr`

### Why they are in scope

- They are not live workloads.
- They add noise to `docker ps -a` and make host intent harder to understand.
- There is no current architecture reason to preserve them as active Serenity residents.

### Safe pruning rules

Before deleting each one:

1. confirm container status is still `Created` or `Exited`
2. confirm it is not referenced by a live reverse-proxy route
3. confirm it is not the only source of some needed config/data you still care about
4. if uncertain, export one final metadata snapshot first:
   - image name
   - mounts
   - env file path if obvious

### Practical order

1. remove `Created` containers first
2. remove long-dead exited containers second
3. leave appdata in place initially
4. only delete appdata later after a short cooling-off window

## Wave 1-C: cloudflared deadwood removal

### Target container

- `Unraid-Cloudflared-Tunnel`

### Why it is in scope

- It is already documented in repo docs as dead/stale.
- Pangolin/Newt is the active exposure pattern now.
- Live audit on 2026-05-25 showed the container is a remote-managed Cloudflare Tunnel carrying a stale legacy config, not an active Serenity service path.

### Live audit findings (2026-05-25)

- `Unraid-Cloudflared-Tunnel` is healthy at the transport layer (`/ready` reported 4 ready connections), but metrics showed `cloudflared_tunnel_total_requests 0` and `cloudflared_tunnel_request_errors 0` for the current run.
- Startup logs exposed the remote-managed ingress set as legacy hostnames pointed at old `192.168.1.x` origins:
  - `wazuh.paccoco.com` -> `https://192.168.1.102`
  - `remotely.paccoco.com` -> `http://192.168.1.180:5001`
  - `hp.paccoco.com` -> `http://192.168.1.180:3000`
  - `octoprint.paccoco.com` -> `http://192.168.1.52`
  - `audiobookshelf.paccoco.com` -> `http://192.168.1.5:13378`
  - `spoolman.paccoco.com` -> `http://192.168.1.202:7912`
  - `node1.paccoco.com` -> `https://192.168.1.189:8080`
  - `hp2.paccoco.com` -> `http://192.168.1.224:3000`
  - `panel.paccoco.com` -> `https://192.168.1.189`
  - `nextcloud.paccoco.com` -> `http://192.168.1.5:11000`
- The tunnel has no local config files under `/mnt/user/appdata/cloudflared`; it is driven entirely by Cloudflare-side config plus a token.
- Public checks for those hostnames currently resolve to `172.245.79.139` and return either live responses or front-door 404s without producing any new tunnel traffic, indicating the present public path is elsewhere and not traversing this Serenity container.
- Repo/docs no longer identify this tunnel as an intended live exposure path; the only repeated modern exposure requirement in Serenity docs is the local Pangolin/Newt lane.

### Preconditions

1. verify no current DNS/public route still expects this tunnel
2. verify no local notes still treat it as the active exposure path
3. verify Newt-based routes are the real live path

Status after live audit:
- (1) satisfied enough for container retirement: no observed current public traffic is reaching this tunnel
- (2) satisfied: local docs treat it as stale legacy deadwood, not the intended active path
- (3) satisfied for Serenity-hosted apps: Pangolin/Newt remains the intentionally preserved exposure path

### Recommended retirement path

1. stop the container and watch briefly for any unexpected complaint or new public breakage
2. remove the container
3. keep `/mnt/user/appdata/cloudflared` during a cooling-off window even though it appears empty/unneeded
4. later, from the Cloudflare side, delete or repoint the stale tunnel config/hostnames if they still exist there

Status:
- completed on 2026-05-25: `Unraid-Cloudflared-Tunnel` was stopped and removed
- sampled public checks (`panel.paccoco.com`, `audiobookshelf.paccoco.com`) remained healthy after removal

## Wave 1-D: DB-backed migration ordering

These apps should not be deleted in wave 1.
They need planned migration.

### Pair 1: GameVault + local Postgres

Live dependency:
- `GameVault` -> `postgresql15`

Recommended sequence:
1. create PD-side target appdata path
2. create PD-side Postgres DB/user on shared-postgres, or a deliberate dedicated PD Postgres if there is a reason not to use shared-postgres
3. export GameVault DB from Serenity
4. import into PD target database
5. migrate GameVault appdata/config
6. recreate GameVault on PD attached to the shared database network if using shared-postgres
7. verify login, library visibility, and metadata path behavior
8. only then retire Serenity `postgresql15`

Default recommendation:
- prefer PD shared-postgres unless GameVault has a proven reason to stay isolated
- note: live `psql` inspection on 2026-05-25 showed a Postgres collation-version mismatch warning on Serenity (`gamevault` created with glibc collation 2.36 while host now provides 2.41), so include a post-migration refresh/reindex plan rather than carrying that debt forward silently

### Pair 2: RomM + local MariaDB

Live dependency:
- `RomM` -> `MariaDB-Official`

Recommended sequence:
1. create PD-side target appdata path
2. create PD-side MariaDB DB/user on shared-mariadb, or a deliberate dedicated PD MariaDB only if needed
3. export RomM DB from Serenity
4. import into PD target MariaDB
5. migrate RomM appdata/config/assets/resources
6. recreate RomM on PD attached to the shared database network if using shared-mariadb
7. verify UI, library, metadata, and asset behavior
8. only then retire Serenity `MariaDB-Official`

Default recommendation:
- prefer PD shared-mariadb unless RomM proves awkward on the shared stack

## Recommended order across all wave 1 work

1. verify Technitium is the only intended active DNS path
2. remove legacy Pi-hole stack
3. remove dead Cloudflared tunnel
4. remove stale created/exited containers
5. leave GameVault/Postgres and RomM/MariaDB in place until their PD migration is prepared
6. keep qbit/ARR locality untouched until PD storage cutover is real

## Risks and guardrails

### Do not touch yet

Do not touch in this wave:
- qbit
- ARR family
- GluetunVPN
- qbit_manage
- Newt
- technitium-dns-pilot
- GameVault
- romm
- postgresql15
- MariaDB-Official

### Specific guardrails

- Do not delete any appdata directory in the same step as container removal unless the dependency is unquestionably dead.
- Do not remove `postgresql15` until GameVault is verified on PD.
- Do not remove `MariaDB-Official` until RomM is verified on PD.
- Do not move qbit/ARR until PD directly owns the relevant media/torrent paths.
- Do not break Serenity Newt while cleanup is happening.

## Suggested Kanban decomposition

### Card A1 — verify legacy Pi-hole is truly unused
Definition of done:
- current DNS path confirmed as Technitium-only
- no intentional admin dependency on Serenity Pi-hole remains

### Card A2 — remove Serenity legacy Pi-hole containers
Definition of done:
- all four legacy Pi-hole containers stopped and removed
- no DNS regression observed

### Card B1 — remove stale created containers
Definition of done:
- created-only clutter removed
- appdata retained for cooling-off period

### Card B2 — remove stale exited containers
Definition of done:
- exited clutter removed
- appdata retained for cooling-off period

### Card C1 — remove dead Unraid Cloudflared tunnel
Definition of done:
- no public path depends on it
- container removed

### Card D1 — choose PD target layout for GameVault and RomM wave
Definition of done:
- PD target appdata paths chosen for both apps
- decision recorded to use PD shared-postgres for GameVault unless blocked
- decision recorded to use PD shared-mariadb for RomM unless blocked
- required PD mount paths for libraries/assets/resources identified

Chosen target layout (2026-05-25):
- place both services in the PD `media` stack so they follow the same steady-state placement already documented for PD media/library apps
- attach both services to:
  - `media-net` for local app adjacency
  - `pangolin` for internal ingress / public exposure
- attach only GameVault to `ix-databases_shared-databases` because it keeps using PD `shared-postgres`
- keep RomM on `media-net` + `pangolin`; its database will be a dedicated sibling service on `media-net`, not a shared DB consumer
- preserve the current host ports on PD because live checks showed them free there:
  - GameVault: `8785:8080`
  - RomM: `8457:8080`
- preserve the public hostnames already in use during cutover:
  - `gamevault.paccoco.com`
  - `romm.paccoco.com`
- use the PD internal ingress model (`Pangolin -> Traefik -> app`) when the public route is re-homed, rather than introducing another direct-to-container edge pattern

Chosen storage layout:
- GameVault appdata on SSD because it is small and write-active:
  - `/mnt/docker-ssd/docker/appdata/gamevault/media` -> `/media`
  - `/mnt/docker-ssd/docker/appdata/gamevault/logs` -> `/logs`
- GameVault canonical content mounts should be re-used, not copied:
  - `/mnt/unraid/data/media/Games-Apps Isos` -> `/files`
  - `/mnt/unraid/data/media/Saved Games` -> `/savefiles`
- RomM split layout:
  - write-active cache on SSD:
    - `/mnt/docker-ssd/docker/appdata/romm/redis-data` -> `/redis-data`
  - config/assets/resources on tank appdata:
    - `/mnt/tank/docker/appdata/romm/config` -> `/romm/config`
    - `/mnt/tank/docker/appdata/romm/assets` -> `/romm/assets`
    - `/mnt/tank/docker/appdata/romm/resources` -> `/romm/resources`
- RomM canonical library mount should be re-used, not copied:
  - `/mnt/unraid/data/media/RomM` -> `/romm/library`

Chosen database layout:
- GameVault -> PD `shared-postgres` on `ix-databases_shared-databases`
  - target DB: `gamevault`
  - target DB user: `gamevault`
- RomM -> dedicated PD `romm-db` service on `media-net`
  - target image pin: `mariadb:12.2`
  - target DB: `romm`
  - target DB user: `romm`
  - target data path: `/mnt/docker-ssd/docker/appdata/romm-db/mysql`

Routing/proxy notes to preserve during implementation:
- RomM upstream docs call out reverse-proxy sensitivity; keep websocket support intact when the route is moved behind PD Traefik
- existing Traefik file-provider patterns in `ingress/traefik/dynamic/routes.yml` should be extended rather than inventing a new routing mechanism for these two apps

### Card D2 — stage PD database targets for the wave
Definition of done:
- GameVault target DB/user created on PD shared-postgres or explicit exception documented
- RomM target DB/user created on the chosen PD MariaDB target or explicit exception documented
- connection details verified from the future PD app network context
- migration rollback notes captured before any source export

Execution notes (2026-05-25):
- staged PD targets on the live shared DB services:
  - Postgres DB/user: `gamevault` / `gamevault`
  - MariaDB DB/user: `romm` / `romm`
- stored live credentials in the PD media stack env file and synced that env into the encrypted secrets repo; credentials were not written into the main repo
- verified future app-network connectivity with ephemeral clients on `ix-databases_shared-databases`:
  - Postgres check returned `gamevault|gamevault`
  - MariaDB check returned `romm` / `romm@%`
- rollback notes:
  - pre-change backup of PD media env: `/mnt/docker-ssd/docker/compose/media/.env.pre-serenity-wave2-d2-20260525-182938`
  - if D3/D4 later uncover an issue, keep the staged DBs unused, restore the prior media `.env` if needed, and rotate/drop the staged users before re-attempting
  - no Serenity source data was touched yet in D2; this card only prepared empty PD landing zones
- note after D3b:
  - the staged shared-mariadb `romm` target is now superseded by the dedicated `romm-db` plan and should not be used for RomM cutover

### Card D3 — export and validate Serenity source databases
Definition of done:
- pre-cutover exports from Serenity are taken for both apps so restore/import flow can be tested before downtime
- `gamevault` Postgres dump exported from Serenity and integrity-checked
- `romm` MariaDB dump exported from Serenity and integrity-checked
- source app versions and DB container versions recorded alongside dumps
- Postgres collation-version warning captured as a post-import remediation item
- final cutover note recorded: these pre-cutover dumps are not the authoritative final state; a last quiesced export must be taken after the Serenity app is stopped during cutover and imported to PD before PD goes live

Execution notes (2026-05-25):
- successful pre-cutover exports were captured and staged under PD backup storage:
  - latest verified dump set: `/mnt/tank/docker/backups/db-dumps/serenity-wave2/20260525-184917/`
  - `20260525-184917-serenity-gamevault.pgcustom` — 175290 bytes, sha256 `1ebd0286483e7f34dddc21076a7540c966a812d8891a8ed7a24247fe972d927d`
  - `20260525-184917-serenity-romm.sql` — 8526126 bytes, sha256 `c74a2d9d715f6c0982d707ba9f41174e19ba681a1debebde865e94e63271302b`
- source runtime facts recorded during export validation:
  - Serenity `postgresql15`: PostgreSQL 15.18, `gamevault` has 18 public tables and ~12 MB logical size
  - Serenity `MariaDB-Official`: MariaDB 12.2.2, `romm` has 20 tables and ~12.41 MB logical size
  - the existing Serenity Postgres collation-version mismatch warning is still present and should be remediated after final import on PD
- GameVault restore-path validation succeeded:
  - the pre-cutover Postgres dump restored cleanly into PD shared-postgres
  - PD `gamevault` target currently shows the expected 18 public tables
- RomM restore-path validation exposed a blocker on the planned PD shared-mariadb target:
  - importing the Serenity RomM dump into PD shared-mariadb failed at line 167 while creating `device_save_sync`
  - MariaDB returned `ERROR 1005 (HY000): Can't create table romm.device_save_sync (errno: 121 "Duplicate key on write or update")`
  - PD shared-mariadb is currently MariaDB 11.4.11 while the Serenity RomM source dump was produced from MariaDB 12.2.2
  - treat this as a compatibility / target-selection issue, not a dump-corruption issue; the dump itself is populated and preserved in backup storage
- net result:
  - D3 is complete for GameVault
  - D3 export validation is complete for RomM, but the original PD shared-mariadb landing target is rejected

### Card D3b — resolve RomM PD database target compatibility
Decision:
- do not upgrade PD `shared-mariadb` just to fit RomM
- keep PD `shared-mariadb` on its current conservative shared-infra track unless a separate approved maintenance change is planned for all consumers
- provision a dedicated PD MariaDB target for RomM instead

Evidence behind the decision:
- the RomM source dump repeatedly uses reused foreign-key names such as `CONSTRAINT \`1\`` and `CONSTRAINT \`2\`` across multiple tables
- MariaDB docs state that foreign-key names must be unique per database before MariaDB 12.1, and only become reusable across tables in MariaDB 12.1+
- Serenity `MariaDB-Official` is MariaDB 12.2.2, which explains why the source schema can exist there
- PD `shared-mariadb` is MariaDB 11.4.11, where the same dump fails with `errno: 121` while creating `device_save_sync`
- the PD databases stack currently provisions MariaDB specifically for Uptime Kuma via `databases/initdb-mariadb/01-create-uptime-kuma-db.sh`; there is no evidence in repo or live stack layout that shared-mariadb was intentionally upgraded or validated as a broad multi-app MariaDB landing zone
- RomM's own setup docs commonly show a dedicated MariaDB container and even call out compatibility-conscious MariaDB version choices in example guides

Operational recommendation:
- create a dedicated PD MariaDB service for RomM, isolated from `shared-mariadb`
- pin that dedicated service to a MariaDB 12.x line compatible with the Serenity source behavior unless RomM docs or release notes later justify a different pin
- attach PD RomM only to its own DB service plus the networks it already needs for ingress/library access
- leave `shared-mariadb` untouched for now to avoid coupling the RomM migration to a shared-database major-version change and validation cycle

Definition of done for D3b:
- dedicated PD MariaDB target for RomM is chosen and documented
- target image/version pin recorded
- restore path is re-tested successfully against that dedicated target before RomM cutover proceeds

Execution notes (2026-05-26):
- restore-path proof was executed on PD using an isolated test container pinned to `mariadb:12.2`
- test target details:
  - container: `romm-db-d3b-test`
  - image/runtime version: `mariadb:12.2` / `12.2.2-MariaDB`
  - data path: `/mnt/docker-ssd/docker/appdata/romm-db-d3b-test/mysql`
- the preserved Serenity RomM dump `/home/fizzlepoof/serenity-wave2-d3-work/20260525-184736-serenity-romm.sql` imported cleanly into the 12.2 target on PD
- post-import verification on the PD test target returned:
  - `20` tables in schema `romm`
  - approximately `10.42 MB` logical table+index footprint
- result:
  - the compatibility blocker is resolved for a dedicated MariaDB 12.2 target
  - RomM should proceed against dedicated `romm-db`, not `shared-mariadb`

### Card D4 — sync appdata for GameVault and RomM to PD staging paths
Definition of done:
- GameVault config/media/log paths copied to PD staging
- RomM config/assets/resources paths copied to PD staging
- large library mounts intentionally re-used from canonical storage instead of blindly duplicating data
- ownership/permissions on PD staging paths verified

Note:
- do not advance RomM cutover assumptions until the MariaDB target mismatch found in D3 is resolved; RomM may need a different PD DB target than the original shared-mariadb assumption

### Card D5 — cut over GameVault to PD
Definition of done:
- Serenity GameVault stopped only for the final cutover window
- after GameVault is stopped on Serenity, a final quiesced `gamevault` Postgres export is taken and imported to the PD target DB so PD does not come up on stale data
- PD GameVault starts against the PD target Postgres DB
- login, library visibility, metadata behavior, and save/upload paths verified
- public/LAN route updated if needed and verified
- Serenity `postgresql15` kept in place but clearly marked retirement-ready if cutover succeeds

### Card D6 — cut over RomM to PD
Definition of done:
- Serenity RomM stopped only for the final cutover window
- after RomM is stopped on Serenity, a final quiesced `romm` MariaDB export is taken and imported to the PD target DB so PD does not come up on stale data
- PD RomM starts against the PD target MariaDB DB
- UI, library visibility, assets/resources, background jobs, and metadata behavior verified
- public/LAN route updated if needed and verified
- Serenity `MariaDB-Official` kept in place but clearly marked retirement-ready if cutover succeeds

### Card D7 — retire Serenity DB remnants after cooldown
Definition of done:
- GameVault and RomM remain healthy on PD through an observation window
- Serenity `postgresql15` and `MariaDB-Official` are stopped and removed only after successful PD validation
- Serenity-side DB appdata is retained for cooldown/rollback, not deleted immediately
- docs and host inventory updated to show Serenity no longer carries those DB pairs

## Open item that still needs verification

- `reranker` mounts `/mnt/user/appdate/reranker`
- verify whether `appdate` is intentional before any future reranker move or cleanup

## Expected result after wave 1

After wave 1, Serenity should still be alive for the workloads that currently justify it, but with much less misleading baggage:

- torrent/media-locality group still intact
- Newt still intact
- Technitium backup node still intact
- GameVault and RomM still live until their migration is prepared
- legacy Pi-hole gone
- dead Cloudflared gone
- stale created/exited clutter gone

That leaves a cleaner host and a safer runway for the later PD storage cutover and full Serenity retirement.

## Wave 1 verification results (2026-05-25)

Verified during this planning pass:

- Serenity still has these live containers relevant to wave 1:
  - `technitium-dns-pilot`
  - `binhex-official-pihole`
  - `pihole-serenity`
  - `unbound-pihole-serenity`
  - `keepalived-pihole-serenity`
  - `Newt`
  - `Unraid-Cloudflared-Tunnel`
- PD still runs the primary Technitium stack plus its own Pi-hole and Newt lane.
- From NOMAD, `/etc/resolv.conf` currently lists `10.5.30.8`, `10.5.30.9`, and `10.5.30.10` ahead of external fallback `9.9.9.9`.
- From NOMAD, `dig` to `10.5.30.8` and `10.5.30.10` succeeded for public DNS resolution; same-host checks to `10.5.30.9` were unreliable, matching the existing macvlan caveat in the docs.
- `Unraid-Cloudflared-Tunnel` is still running, but repo docs already classify it as dead/stale and its container has `Restart=no`.
- Serenity `Newt` must not be treated as deadwood: operator confirmed Pangolin tunnels Serenity resources through Serenity's local Newt instead of routing from PD or NOMAD to Serenity resources over the Serenity LAN IP.
- Live Serenity `Newt` logs still show repeated Pangolin health checks against stale `10.5.1.5` targets (`7474`, `8785`, `8787`, `8788`, `8990`, `8457`, `5690`, `5454`).

Operational implication:

- removing Cloudflared remains low-risk after one final dependency check
- removing the legacy Pi-hole stack remains appropriate
- removing Serenity `Newt` is not appropriate during wave 1
- Pangolin target drift for Serenity-hosted resources should be repaired later by rehoming those resources to the correct Serenity site/local-path model instead of stale literal pre-migration IPs