diff --git a/AI.md b/AI.md
index aa43ac1..e972c0a 100644
--- a/AI.md
+++ b/AI.md
@@ -1,55 +1,697 @@
-# aria2 — THE HOW
+# CasjaysDev Docker Application Image Specification (casjaysdevdocker)
 
-## Build flow
+**Name**: {name}
 
-Multi-stage Alpine Dockerfile (`casjaysdev/alpine` base → `FROM scratch` final).
+**About this file:** This is the complete, authoritative specification for a CasjaysDev
+Docker **application image** repository (`casjaysdevdocker/{name}`). It is a master
+template — copied into an app image repo as that repo's `AI.md`. It is **permanent** —
+never delete it from a repo that carries it.
 
-1. **Package install**: `pkmgr install aria2 bash tini curl wget tzdata ca-certificates unzip jq pwgen nginx` installs all components in one layer.
-2. **Setup scripts** (`rootfs/root/docker/setup/`): `03-files.sh` auto-installs everything under `rootfs/tmp/` into the image (`/etc/aria2/`, `/etc/nginx/`, `/usr/local/etc/docker/bin/`, etc.). `05-custom.sh` performs the wipe-and-replace — removes distro defaults from `/etc/aria2/` and `/etc/nginx/`, installs our optimized configs, and unpacks the pre-bundled AriaNg zip from `rootfs/tmp/ariang-src/AriaNg-*.zip` into `/usr/local/share/ariang/`.
-3. **AriaNg pre-bundle**: GitHub SSL is blocked inside the buildx sandbox on this host, so the AriaNg zip must be downloaded on the host first and placed at `rootfs/tmp/ariang-src/AriaNg-1.3.13.zip` (gitignored) before running `buildx`.
-4. **Final stage**: `FROM scratch` + `COPY --from=build /. /` produces a minimal image with tini as PID 1.
+**Note:** `{name}` in this file is a reference token, not setup-time replacement text. Its
+value is always the repo directory basename (`basename "$PWD"`).
 
-## Runtime boot chain
+**Maintenance procedure:** The bootstrap/update runbook (regenerating files after upstream
+template changes, creating new repos) is NOT in this file — it lives in the
+`dockersrc-bootstrap` agent (it handles both repo families via `REPO_TYPE` detection).
+This file defines the standards that procedure enforces.
+
+---
+
+# PART INDEX
+
+| PART | Title |
+|------|-------|
+| 0 | Critical rules |
+| 1 | Repository model & structure |
+| 2 | Template system reference |
+| 3 | Tooling — gen-dockerfile & gen-script |
+| 4 | `.env.scripts` reference |
+| 5 | Runtime system — setup scripts, entrypoint, init.d |
+| 6 | README.md standard layout |
+| 7 | CI/CD workflows |
+| 8 | Verification & commit |
+
+---
+
+# PART 0: CRITICAL RULES
+
+## Org mapping
+
+| System | Org | Example |
+|--------|-----|---------|
+| GitHub (source) | `casjaysdevdocker` | `https://github.com/casjaysdevdocker/{name}` |
+| Docker Hub (push) | `casjaysdevdocker` | `casjaysdevdocker/{name}` |
+
+`casjaysdevdocker` repos are **applications** (gitea, opengist, super-productivity,
+ampache, aria2, …). They always build FROM the pre-built, multi-arch `casjaysdev/*` base
+images — never directly from upstream distro images. The bases themselves live in the
+separate `dockersrc` org (GitHub `dockersrc/{base}` → Docker Hub `casjaysdev/{base}`) —
+see the base specification (`DOCKERSRC.md`).
+
+## Non-negotiable rules
+
+1. **`AI.md` is permanent** — never delete it from the repo.
+2. **Generated files are owned by the template system** — never hand-tune content that
+   `gen-dockerfile` regenerates (see PART 1 ownership table); fix the upstream
+   `gen-dockerfile` template instead, then regenerate.
+3. **Hand-crafted files are owned by the repo** — `gen-dockerfile` must never overwrite
+   app-specific init.d scripts, custom bin scripts, a `05-custom.sh` with real content, or
+   a hand-crafted README (PART 6).
+4. **Removed OCI labels stay removed** (PART 2) — never re-add `base.name`,
+   `schema-version`, or duplicate `authors`/`source` entries.
+5. **`image.url` is a browsable page** — `https://hub.docker.com/r/casjaysdevdocker/{name}`.
+   `docker.io` is only a registry pull host; it is never a label URL.
+6. **`image.source` and `image.documentation` are the GitHub repo** —
+   `https://github.com/casjaysdevdocker/{name}`.
+7. **One Dockerfile, one file set** — app repos build one image (`latest` + date tag);
+   version variants (`Dockerfile.{ver}`) belong to base repos only.
+8. **Always `FROM casjaysdev/<base>`** — never pull an upstream distro image directly;
+   the base repos exist so every app shares one patched, multi-arch foundation.
+9. **Only `root/`, `tmp/`, and `usr/` may exist at `rootfs/` top level** (PART 1).
+10. **Maintenance runs through the `dockersrc-bootstrap` agent** — do not improvise the
+    update procedure from memory.
+
+---
+
+# PART 1: REPOSITORY MODEL & STRUCTURE
+
+## What an app image repo is
+
+A `casjaysdevdocker/{name}` repo containerizes one application on top of a
+`casjaysdev/*` base. It publishes a single image (`casjaysdevdocker/{name}:latest` plus a
+date tag) — no per-version Dockerfile variants. The application itself is installed in
+`05-custom.sh` and started by one or more init.d service scripts.
+
+## Standard tree
 
 ```
-tini → /usr/local/bin/entrypoint.sh → /usr/local/etc/docker/init.d/00-aria2c.sh → /usr/local/etc/docker/bin/start-aria2
+{name}/
+├── AI.md                          # This specification (permanent)
+├── Dockerfile                     # [generated] single build file
+├── .dockerignore                  # [generated]
+├── .env.scripts                   # [generated] build config
+├── .gitattributes                 # [generated]
+├── .gitea/workflows/
+│   └── build.yml                  # [generated] gen-dockerfile actions
+├── .gitignore                     # [generated]
+├── LICENSE.md                     # License (WTFPL / app's own license)
+├── README.md                      # [generated*] standard layout (PART 6)
+└── rootfs/                        # Container filesystem overlay
+    ├── root/docker/setup/         # [generated*] build-time setup scripts 00–07
+    ├── tmp/                       # staged files installed at build time (optional)
+    └── usr/local/
+        ├── bin/                   # [generated*] entrypoint.sh, pkmgr, symlink, copy,
+        │                          #   healthcheck + [hand-crafted] app-specific scripts
+        └── etc/docker/
+            ├── env/               # [hand-crafted] build/runtime env fragments (optional)
+            ├── functions/
+            │   └── entrypoint.sh  # [generated] entrypoint function library
+            └── init.d/            # [hand-crafted] runtime init scripts (one per service)
 ```
 
-- `entrypoint.sh` seeds `/config/` and `/data/` on first run (via `__initialize_config_dir` / `__initialize_data_dir`), then calls `__start_init_scripts` which sources and executes `init.d/00-aria2c.sh`.
-- `00-aria2c.sh` sources `functions/entrypoint.sh`, runs hook functions (`__run_pre_execute_checks` → `tracker.sh` to refresh BT trackers; `__update_conf_files` → token substitution: `REPLACE_RPC_PORT`, `REPLACE_SERVER_ADDR`, optional `rpc-secret` toggle, DHT port, log path, file-allocation, AriaNg config overlay), then calls the framework's `__run_start_script`.
-- `start-aria2` backgrounds `aria2c --conf-path=/config/aria2/aria2.conf`, waits for port 6800 to open, then `exec`s `nginx -c /config/nginx/nginx.conf -g 'daemon off;'` as the foreground process (becomes PID adopted by tini).
+`[generated]` — safe to regenerate; local edits will be lost.
+`[generated*]` — regenerated from the template, EXCEPT files carrying repo-specific
+content (`05-custom.sh` with a real body, extra bin scripts, a hand-crafted README) —
+those follow the hand-crafted rules in PARTs 5 and 6.
+`[hand-crafted]` — never overwritten by the template system.
 
-## Key paths
+App repos may additionally carry project files (`IDEA.md`, `CLAUDE.md`, `TODO.AI.md`)
+per the global project conventions — they are repo-owned and never touched by tooling.
 
-| Path | Role |
-|---|---|
-| `/usr/bin/aria2c` | Download daemon binary |
-| `/usr/sbin/nginx` | HTTP server binary |
-| `/usr/local/share/ariang/` | AriaNg static files (index.html, JS, CSS) |
-| `/usr/local/etc/docker/bin/start-aria2` | Wrapper: backgrounds aria2c, foregrounds nginx |
-| `/usr/local/etc/docker/init.d/00-aria2c.sh` | Init.d script — wires up the service |
-| `/usr/local/bin/tracker.sh` | P3TERX BT tracker updater |
-| `/config/aria2/aria2.conf` | User-editable aria2c config (seeded from `rootfs/tmp/etc/aria2/aria2.conf`) |
-| `/config/nginx/nginx.conf` | User-editable nginx config (seeded from `rootfs/tmp/etc/nginx/nginx.conf`) |
-| `/data/downloads/aria2/` | Download destination |
-| `/data/logs/aria2/aria2.log` | aria2c log |
-| `/data/logs/nginx/` | nginx access + error logs |
+## rootfs top-level policy
 
-## Config token substitution (00-aria2c.sh `__update_conf_files`)
+The only valid directories at the `rootfs/` root are `root/`, `tmp/`, and `usr/`.
+Anything else is a leftover from old patterns. Migration map:
 
-Tokens in `/config/aria2/aria2.conf` replaced at each container start:
+| Old rootfs path | Correct rootfs path |
+|-----------------|---------------------|
+| `rootfs/etc/{path}` | `rootfs/tmp/etc/{path}` |
+| `rootfs/config/{path}` | `rootfs/tmp/etc/{path}` |
+| `rootfs/data/{path}` | `rootfs/tmp/var/{path}` |
+| `rootfs/var/{path}` | `rootfs/tmp/var/{path}` |
+| `rootfs/opt/{path}` | `rootfs/tmp/opt/{path}` |
+| `rootfs/share/{path}` | `rootfs/usr/local/share/{path}` |
 
-| Token | Replaced with |
-|---|---|
-| `REPLACE_RPC_PORT` | `${RPC_PORT:-6800}` |
-| `REPLACE_SERVER_ADDR` | Container IPv4 (via `__get_ip4`) |
-| `rpc-secret=REPLACE_RPC_SECRET` | Commented out unless `RPC_SECRET` env var is set |
-| `dht-listen-port=.*` | `dht-listen-port=6888` |
-| `log=.*` | `log=/data/logs/aria2/aria2.log` |
-| `file-allocation=.*` | `file-allocation=prealloc` |
+`rootfs/usr/local/share/template-files/` is retired — the `DEFAULT_TEMPLATE_DIR`,
+`DEFAULT_FILE_DIR`, `DEFAULT_DATA_DIR`, and `DEFAULT_CONF_DIR` variables were removed
+from the template system; the entrypoint installs staged files from `rootfs/tmp/etc/`
+at container start instead.
 
-The AriaNg client config (`/config/aria2/aria-ng.config.js`) is also overlaid onto the bundled `js/aria-ng-*.min.js` so the UI auto-connects to the local RPC endpoint without user configuration.
+## Repo type detection
 
-## Single init.d design
+A repo is an **app** repo when no `Dockerfile.*` variant files exist:
 
-The framework's `__start_init_scripts` only reliably runs the first `init.d/*.sh`. Two separate scripts (`00-aria2c.sh` + `zz-nginx.sh`) would only start aria2c. The resolution is a single init.d entry (`00-aria2c.sh`) pointing at the `start-aria2` wrapper script which manages both processes.
+```bash
+if find . -maxdepth 1 -name 'Dockerfile.*' -type f | grep -q -- .; then
+  REPO_TYPE="base"
+else
+  REPO_TYPE="app"
+fi
+```
+
+---
+
+# PART 2: TEMPLATE SYSTEM REFERENCE
+
+Templates ship with `gen-dockerfile`, installed at
+`/usr/local/share/CasjaysDev/scripts/templates/dockerfiles/`
+(`$CASJAYSDEVDIR/templates/dockerfiles/` in a dev checkout). To inspect what the current
+templates produce, generate a fresh reference tree in a temp dir:
+
+```bash
+gen-dockerfile /tmp/gen-dockerfile/{org}/{repo} {distro}
+```
+
+See `gen-dockerfile --help` for supported distros/types. Keep this PART in sync whenever
+the templates change.
+
+## Template inventory
+
+The template name selects the base OS family; for an app repo the resulting pull URL is
+always the matching `casjaysdev/*` image:
+
+| Template | Final stage | Init / PID 1 | App pulls FROM |
+|----------|-------------|--------------|----------------|
+| `alpine.template` | `scratch.template` | tini | `casjaysdev/alpine` |
+| `debian.template` | `scratch.template` | tini | `casjaysdev/debian` |
+| `ubuntu.template` | `scratch.template` | tini | `casjaysdev/ubuntu` |
+| `rhel.template` | `scratch.template` | tini | `casjaysdev/almalinux` |
+| `archlinux.template` | `scratch.template` | tini | `casjaysdev/archlinux` (multi-arch manifest) |
+| `web.template` | `systemd.template` | `/sbin/init` | `casjaysdev/web` |
+| `xorg.template` | `systemd.template` | `/sbin/init` | `casjaysdev/xorg` |
+
+Default template for app repos is `alpine` unless the application needs systemd, a GUI
+stack, or a distro-specific package.
+
+## Final-stage templates
+
+`scratch.template` — all non-GUI templates.
+- `ENTRYPOINT [ "tini", "-p", "SIGTERM","--", "/usr/local/bin/entrypoint.sh" ]`
+- `STOPSIGNAL SIGRTMIN+3`
+
+`systemd.template` — `web` and `xorg` (systemd is PID 1; tini is redundant).
+- `ENTRYPOINT [ "/sbin/init" ]`
+- `STOPSIGNAL SIGRTMIN+3`
+- No `tini_provider` stage, no `COPY --from=tini_provider` line.
+
+Both are identical apart from `ENTRYPOINT`. OCI labels, `ENV HOSTNAME`, and
+`VOLUME`/`EXPOSE`/`HEALTHCHECK` are the same in both.
+
+## OCI label standard
+
+Both final-stage templates emit these labels (no others):
+
+```
+LABEL maintainer="${GEN_DOCKERFILE_MAINTAINER}"
+LABEL org.opencontainers.image.vendor="${GEN_DOCKERFILE_VENDOR:-CasjaysDev}"
+LABEL org.opencontainers.image.authors="${GEN_DOCKERFILE_AUTHOR:-CasjaysDev}"
+LABEL org.opencontainers.image.licenses="${LICENSE}"
+LABEL org.opencontainers.image.title="${IMAGE_NAME}"
+LABEL org.opencontainers.image.description="Containerized version of ${IMAGE_NAME}"
+LABEL org.opencontainers.image.created="${BUILD_DATE}"
+LABEL org.opencontainers.image.version="${BUILD_VERSION}"
+LABEL org.opencontainers.image.revision="${GIT_COMMIT}"
+LABEL org.opencontainers.image.url="${GEN_DOCKERFILE_HUB_REPO}"
+LABEL org.opencontainers.image.source="${GEN_DOCKERFILE_GIT_REPO}"
+LABEL org.opencontainers.image.documentation="${GEN_DOCKERFILE_GIT_REPO}"
+LABEL org.opencontainers.image.vcs-type="Git"
+LABEL com.github.containers.toolbox="false"
+```
+
+Shell-expanded values (no `\`) are evaluated at template-render time by `gen-dockerfile`.
+Dollar-escaped values (`\${...}`) become literal Docker `ARG`/`ENV` references in the
+generated `Dockerfile`.
+
+Resolved values for a `casjaysdevdocker` repo pushing to Docker Hub:
+
+| Label | Value |
+|-------|-------|
+| `url` | `https://hub.docker.com/r/casjaysdevdocker/{name}` — browsable Hub page; `gen-dockerfile` derives it from the registry host (`docker.io` → `hub.docker.com/r/`) |
+| `source` | `https://github.com/casjaysdevdocker/{name}` |
+| `documentation` | `https://github.com/casjaysdevdocker/{name}` |
+
+Older app repos may still carry `url="https://docker.io/casjaysdevdocker/{name}"` — that
+is the stale form; regeneration corrects it. Removed labels (never re-add):
+- `org.opencontainers.image.base.name` — belongs on the base image, not this image
+- `org.opencontainers.image.schema-version` — non-spec; redundant with `version`
+- Any duplicate `authors` or `source` entries
+
+## HOSTNAME convention
+
+All templates set `ENV HOSTNAME="casjaysdevdocker-${IMAGE_NAME}"` in every stage that
+declares it. The prefix is always `casjaysdevdocker-`, never `casjaysdev-`.
+
+## `GEN_DOCKERFILE_APP_DIR` and pull URL logic
+
+`GEN_DOCKERFILE_APP_DIR` is auto-detected by `gen-dockerfile` from the parent directory
+of `$PWD` (the org the checkout lives in):
+
+```bash
+GEN_DOCKERFILE_APP_DIR="${GEN_DOCKERFILE_APP_DIR:-$(basename -- "$(dirname -- "$PWD")")}"
+```
+
+It selects the `GEN_DOCKER_SPECIFY_IMAGE_SOURCE_*` defaults:
+
+- `casjaysdevdocker/*` repos → `FROM casjaysdev/<distro>:latest` (pre-built, multi-arch)
+- `dockersrc/*` and all other orgs → `FROM <distro>:latest` (upstream official images)
+
+App repos must resolve to the `casjaysdev/*` branch — a checkout outside
+`~/Projects/*/casjaysdevdocker/` needs `GEN_DOCKERFILE_APP_DIR="casjaysdevdocker"`
+exported before calling `gen-dockerfile`, or the regenerated Dockerfile silently reverts
+to upstream distro pulls (rule 8 violation).
+
+## Arch Linux apps
+
+`casjaysdev/archlinux` is a multi-arch manifest (`linux/amd64` + `linux/arm64`), so app
+repos use a single `FROM ${PULL_URL}:${DISTRO_VERSION} AS build` — the three-stage
+`base-${TARGETARCH}` FROM block belongs to the base repo only.
+
+## `web.template` / `xorg.template` notes
+
+`web` apps inherit the systemd + noVNC stack (`SERVICE_PORT="5800"`,
+`EXPOSE_PORTS="5800 5900"` defaults); `xorg` apps inherit the systemd + Xorg stack. App
+packages go in `ENV_PACKAGES` / `02-packages.sh`, never by editing the template's stack
+list.
+
+## `debian.template` / `ubuntu.template` — RUN continuation
+
+The first `RUN` block must have `; \` after the `echo` line so
+`export DEBIAN_FRONTEND=noninteractive` executes before `apt-get`:
+
+```dockerfile
+RUN set -e; \
+  echo "Updating the system"; \
+  export DEBIAN_FRONTEND=noninteractive; \
+  apt-get update && apt-get upgrade -yy && apt-get dist-upgrade -yy
+```
+
+Without the `; \` the export is a no-op and `apt-get` may prompt interactively.
+
+## Template resolution order
+
+1. `$GEN_DOCKERFILE_CONFIG_DIR/templates/<name>.template` (user override)
+2. `/usr/local/share/CasjaysDev/scripts/templates/dockerfiles/<name>.template`
+   (installed; `$CASJAYSDEVDIR/templates/dockerfiles/` in a dev checkout)
+
+`template_options.source` is sourced after `__set_variables`, allowing template-specific
+variable overrides.
+
+---
+
+# PART 3: TOOLING — gen-dockerfile & gen-script
+
+## `gen-dockerfile`
+
+```
+Usage: gen-dockerfile [options] [dir] [template] [repo-name] [git-repo-url]
+```
+
+| Flag | Meaning |
+|------|---------|
+| `--update` | Rewrite `.env.scripts` (add/drop vars against the current template) and update ARG/LABEL lines in the `Dockerfile`. Touches no other file. |
+| `--nogit` | Do not init or commit a git repo — required inside an existing repo. |
+| `--dir PATH` | Operate on / write output to PATH instead of `$PWD`. |
+| `--template NAME` | Template to use (`alpine`, `debian`, `ubuntu`, `rhel`, `archlinux`, `scratch`, `web`, `xorg`). Defaults to `alpine`. |
+| `--repo NAME` | Registry repo name (image basename). Defaults to the directory name. |
+| `--org NAME` | Registry owner / GitHub org (`--user` is an alias). Prefix `git:` or `reg:` to scope to one system; bare value sets both. For app repos both are `casjaysdevdocker`. |
+| `--registry URL` | Registry provider URL (e.g. `https://docker.io`). |
+| `--tag VERSION` | Image version tag (default `latest`). |
+| `--add-tags TAGS` | Comma-separated additional tags (`USE_DATE` = auto date tag). |
+| `--distro-name IMG` | Base image pull URL (overrides `ENV_PULL_URL`). |
+| `--distro-version T` | Base image tag (overrides `ENV_DISTRO_TAG`). |
+| `--startup FILE` | Generate an init.d service script at `rootfs/usr/local/etc/docker/init.d/FILE` via `gen-script other/start-service`. |
+| `--dockerfile` | Regenerate the Dockerfile only. |
+| `--force` | Overwrite existing files without prompting. |
+
+Resolution order when a value is not given by a flag: flags → git remote → project dirs →
+defaults.
+
+Special subcommand — `gen-dockerfile actions` writes `.gitea/workflows/build.yml` from
+the existing `Dockerfile` (PART 7). App repos have no versioned `build.{ver}.yml` files.
+
+## `gen-script`
+
+```
+Usage: gen-script [options] [template] [filename]
+```
+
+| Flag / env var | Meaning |
+|----------------|---------|
+| `--dir PATH` | Write the generated file to `PATH/filename`. |
+| `-n` / `--name VALUE` | Service name substituted into the template — fills `REPLACE_SERVICE_NAME` in `other/start-service`, pre-populating `SERVICE_NAME=` without a sed step. |
+| `GEN_SCRIPT_OVERWRITE="Y"` | Overwrite the output without prompting (default `"A"` = ask). Required when the target exists, even with `GEN_SCRIPT_EDITFILE="N"`. |
+| `GEN_SCRIPT_EDITFILE="N"` | Suppress the interactive editor after generation. `-e`/`--no` sets BOTH this AND `GEN_SCRIPT_OVERWRITE="Y"`; the env var alone does not. |
+| `other/start-service` | Template path — positional arg 1, slash-joined words, matching the `@@Template` header. |
+| `filename` | Output basename — positional arg 2, combined with `--dir`. |
+
+Other flags: `-k`/`--keep` (never overwrite), `--replace` (new header replaces old),
+`-d`/`--desc` (header description), `-p`/`--prev` (copy header metadata from a file).
+
+---
+
+# PART 4: `.env.scripts` REFERENCE
+
+Generated at the repo root; sourced by `gen-dockerfile` and by CI at build time. App
+repos carry exactly one. It is a pure `KEY="value"` file — no logic.
+
+## Variables
+
+| Variable | Purpose |
+|----------|---------|
+| `ENV_DOCKERFILE` | Dockerfile to build (`Dockerfile`) |
+| `ENV_REGISTRY_REPO` | Image name in the registry (`{name}`) |
+| `ENV_REGISTRY_ORG` | Registry namespace — `casjaysdevdocker` for app repos |
+| `ENV_REGISTRY_URL` | Registry base URL (`https://docker.io`) — pull/push host, never a label URL |
+| `ENV_REGISTRY_PUSH` | Full push path `org/repo` (`casjaysdevdocker/{name}`) |
+| `ENV_ADD_IMAGE_PUSH` | Extra push destinations |
+| `ENV_GIT_REPO_URL` | Full Git repo URL — `https://github.com/casjaysdevdocker/{name}`; feeds the `source`/`documentation` labels, so a wrong value here regresses labels on regeneration |
+| `ENV_USE_TEMPLATE` | Template name (`alpine`, `debian`, …) — the authoritative record of which base family the app builds on |
+| `ENV_PULL_URL` | Base image to pull FROM (`casjaysdev/<base>`) |
+| `ENV_DISTRO_TAG` | Tag for the pull image (`latest`) |
+| `ENV_IMAGE_TAG` | Default image tag (`latest`) |
+| `ENV_ADD_TAGS` | Additional comma-separated tags; `USE_DATE` auto-generates a date tag |
+| `ENV_PACKAGES` | Space-separated package list |
+| `ENV_VENDOR` / `ENV_AUTHOR` / `ENV_MAINTAINER` | Label metadata |
+| `SERVICE_PORT` | Primary exposed port — apps normally set this |
+| `EXPOSE_PORTS` | Additional exposed ports |
+| `PHP_VERSION` / `NODE_VERSION` / `NODE_MANAGER` | Runtime versions (`system` default) |
+| `WWW_ROOT_DIR` | Web root (`/usr/local/share/httpd/default`) |
+| `DOCKER_ENTYPOINT_PORTS_WEB` / `DOCKER_ENTYPOINT_PORTS_SRV` | Ports passed to the entrypoint |
+| `DOCKER_ENTYPOINT_HEALTH_APPS` / `DOCKER_ENTYPOINT_HEALTH_ENDPOINTS` | Healthcheck targets |
+
+## Legacy variable auto-migration
+
+`gen-dockerfile` calls `__migrate_env_script` on every run, renaming old variables:
+
+| Old name | Current name |
+|----------|-------------|
+| `ENV_IMAGE_NAME` | `ENV_REGISTRY_REPO` |
+| `ENV_IMAGE_PUSH` | `ENV_REGISTRY_PUSH` |
+| `ENV_HUB_BASE` | `ENV_REGISTRY_URL` |
+| `ENV_ORG_NAME` | `ENV_REGISTRY_ORG` |
+
+Never use the old names in new files. Retired variables that must not reappear anywhere:
+`DEFAULT_TEMPLATE_DIR`, `DEFAULT_FILE_DIR`, `DEFAULT_DATA_DIR`, `DEFAULT_CONF_DIR`.
+
+---
+
+# PART 5: RUNTIME SYSTEM — SETUP SCRIPTS, ENTRYPOINT, INIT.D
+
+## Build-time setup scripts (`rootfs/root/docker/setup/`)
+
+Run in order inside the build stage:
+
+| Script | Role |
+|--------|------|
+| `00-init.sh` | Initialize base directory structure and environment |
+| `01-system.sh` | Repos, locales, timezone, system settings |
+| `02-packages.sh` | App-specific packages, package managers, language runtimes |
+| `03-files.sh` | Install staged files (`rootfs/tmp/etc/*` → `/etc/*`), permissions, symlinks |
+| `04-users.sh` | Create service users/groups |
+| `05-custom.sh` | Application install logic — the heart of an app repo |
+| `06-post.sh` | Post-install configuration |
+| `07-cleanup.sh` | Remove build deps, caches, temp files |
+
+**`05-custom.sh` ownership:** the upstream template ships an empty stub. An app repo's
+`05-custom.sh` carries the application install (download/build, users, default config) —
+that content exists only in the repo's git history, never in the template. On
+regeneration, keep the existing body and pull forward only boilerplate (version-stamp
+header, `set` line, shellcheck-disable line). The same rule applies to any other `0*.sh`
+found to contain real logic beyond the stub.
+
+## Entrypoint flow
+
+```
+tini → /usr/local/bin/entrypoint.sh
+├─ Load /usr/local/etc/docker/functions/entrypoint.sh
+├─ Source env: /root/env.sh, /usr/local/etc/docker/env/*.sh, /config/env/*.sh
+├─ Seed /config and /data on first run
+├─ __start_init_scripts — source every init.d/*.sh in sort order
+├─ Handle `healthcheck` command
+└─ Execute main application
+```
+
+`rootfs/usr/local/bin/` generated set: `entrypoint.sh`, `pkmgr`, `symlink`, `copy`,
+`healthcheck`. `pkmgr` wraps the native package manager (`apk`, `apt-get`, `dnf`,
+`pacman`) behind `pkmgr update|install|remove|clean`.
+
+## App-specific bin scripts
+
+Extra scripts in `rootfs/usr/local/bin/` that `gen-dockerfile` does not generate are
+repo-owned. Their `@@Template` header governs maintenance:
+
+- `@@Template : shell/sh` — boilerplate synced from `$TEMPLATE_DIR/scripts/shell/sh`;
+  `#!/usr/bin/env sh`, `set -e` only (`pipefail` is a bashism — must NOT appear)
+- `@@Template : shell/bash` — synced from `shell/bash`; `set -eo pipefail` required
+- No `@@Template` header — hand-written; never modified by tooling
+
+## init.d scripts — critical rules
+
+**Each service gets its own numbered init.d script. Never merge or remove services.**
+`__start_init_scripts` sources every `*.sh` in sort order — multi-process apps have one
+script per daemon (e.g. gitea: `05-dockerd.sh`, `08-gitea.sh`, `zz-act_runner.sh`).
+
+init.d scripts are **regenerated, never patched in place** — old copies may call functions
+removed from the current `functions/entrypoint.sh`. Generate fresh via
+`gen-script other/start-service` (or `gen-dockerfile --startup`), then restore the
+app-specific values. They are `#!/usr/bin/env bash` with `set -eo pipefail`.
+
+Required variables in every init.d script:
+
+```bash
+SERVICE_NAME="myapp"
+EXEC_CMD_BIN='myapp'
+EXEC_CMD_ARGS=''
+EXEC_PRE_SCRIPT=''
+SERVICE_USES_PID=''
+IS_WEB_SERVER="no"
+IS_DATABASE_SERVICE="no"
+USES_DATABASE_SERVICE="no"
+DATABASE_SERVICE_TYPE="sqlite"
+RUNAS_USER="root"
+```
+
+Directory variables:
+
+```bash
+DATA_DIR="/data/$SERVICE_NAME"
+CONF_DIR="/config/$SERVICE_NAME"
+ETC_DIR="/etc/$SERVICE_NAME"
+LOG_DIR="/data/logs/$SERVICE_NAME"
+TMP_DIR="/tmp/$SERVICE_NAME"
+RUN_DIR="/run/$SERVICE_NAME"
+ROOT_FILE_PREFIX="/config/secure/auth/root"
+USER_FILE_PREFIX="/config/secure/auth/user"
+```
+
+## Hook functions
+
+The `start-service` template generates all outer hooks fully implemented — customise via
+the matching `*_local()` stub, which each outer hook calls automatically if defined:
+
+| Outer hook (do not redefine) | Customise via |
+|------------------------------|---------------|
+| `__run_precopy` | `__run_precopy_local` |
+| `__execute_prerun` | `__execute_prerun_local` |
+| `__run_pre_execute_checks` | `__run_pre_execute_checks_local` |
+| `__update_conf_files` | `__update_conf_files_local` |
+| `__pre_execute` | `__pre_execute_local` |
+| `__post_execute` | `__post_execute_local` |
+| `__pre_message` | `__pre_message_local` |
+| `__update_ssl_conf` | `__update_ssl_conf_local` |
+| `__create_service_env` | — |
+| `__run_start_script` | — |
+| `__run_secure_function` | — |
+
+## PID sentinel guard
+
+Every init.d script must guard on exactly this sentinel — leading dot, no underscores in
+the filename portion; any other form silently skips the guard:
+
+```bash
+if [ ! -f "/run/.start_init_scripts.pid" ]; then
+  echo "__start_init_scripts function hasn't been Initialized" >&2
+  SERVICE_IS_RUNNING="no"
+  __script_exit 1
+fi
+```
+
+## Volumes
+
+- `/config` — persistent configuration
+- `/data` — persistent application data
+
+---
+
+# PART 6: README.md STANDARD LAYOUT
+
+App image layout (`casjaysdevdocker/{name}` → `casjaysdevdocker/{name}`). Substitute
+`{name}` and `{port}` (the value of `SERVICE_PORT`); omit all `-p`/`ports:` sections only
+in the rare case `SERVICE_PORT` is empty.
+
+**Hand-crafted README exception:** a repo whose README deliberately diverges from this
+layout (full env-var tables, app-specific quick-start flags — e.g. gitea) owns its README.
+Update its facts (image name, org, ports, URLs), never rewrite its structure back to the
+generated layout.
+
+````markdown
+## 👋 Welcome to {name} 🚀
+
+{name} README
+
+
+## Install my system scripts
+
+```shell
+ sudo bash -c "$(curl -q -LSsf "https://github.com/systemmgr/installer/raw/main/install.sh")"
+ sudo systemmgr --config && sudo systemmgr install scripts
+```
+
+## Automatic install/update
+
+```shell
+dockermgr update {name}
+```
+
+## Install and run container
+
+```shell
+dockerHome="/srv/$USER/docker/casjaysdevdocker/{name}/latest/volumes"
+mkdir -p "$dockerHome"
+git clone "https://github.com/dockermgr/{name}" "$HOME/.local/share/CasjaysDev/dockermgr/{name}"
+cp -Rfva "$HOME/.local/share/CasjaysDev/dockermgr/{name}/volumes/." "$dockerHome/"
+docker run -d \
+--restart always \
+--privileged \
+--name casjaysdevdocker-{name}-latest \
+--hostname {name} \
+-e TZ=${TIMEZONE:-America/New_York} \
+-v "$dockerHome/data:/data:z" \
+-v "$dockerHome/config:/config:z" \
+-p {port}:{port} \
+casjaysdevdocker/{name}:latest
+```
+
+## via docker-compose
+
+```yaml
+services:
+  ProjectName:
+    image: casjaysdevdocker/{name}
+    container_name: casjaysdevdocker-{name}
+    environment:
+      - TZ=America/New_York
+      - HOSTNAME={name}
+    volumes:
+      - "/srv/$USER/docker/casjaysdevdocker/{name}/latest/volumes/data:/data:z"
+      - "/srv/$USER/docker/casjaysdevdocker/{name}/latest/volumes/config:/config:z"
+    ports:
+      - {port}:{port}
+    restart: always
+```
+
+## Get source files
+
+```shell
+dockermgr download src casjaysdevdocker/{name}
+```
+
+OR
+
+```shell
+git clone "https://github.com/casjaysdevdocker/{name}" "$HOME/Projects/github/casjaysdevdocker/{name}"
+```
+
+## Build container
+
+```shell
+cd "$HOME/Projects/github/casjaysdevdocker/{name}"
+buildx
+```
+
+## Authors
+
+🤖 casjay: [Github](https://github.com/casjay) 🤖
+⛵ casjaysdevdocker: [Github](https://github.com/casjaysdevdocker) [Docker](https://hub.docker.com/u/casjaysdevdocker) ⛵
+````
+
+---
+
+# PART 7: CI/CD WORKFLOWS
+
+## Generated workflow (`gen-dockerfile actions`)
+
+`gen-dockerfile actions` writes `.gitea/workflows/build.yml` from the current
+`Dockerfile`. App repos get the single `build.yml` only — no versioned variants. All
+actions are SHA-pinned — never tag-pinned.
+
+- **Triggers:** `push` to `main`, monthly schedule, `workflow_dispatch`
+- **Registry strategy:** always logs in to the Gitea registry via the auto-provided
+  `GITEA_TOKEN`; conditionally logs in to Docker Hub when `vars.DOCKER_USERNAME` is set
+  (`vars.DOCKER_USERNAME` + `secrets.DOCKER_PASSWORD`; `vars.DOCKER_REGISTRY` overrides
+  the registry, `vars.DOCKER_ORG` the namespace)
+- **Platforms:** `linux/amd64,linux/arm64`
+- **build-args:** only `BUILD_DATE`, `GIT_COMMIT`, `BUILD_VERSION`
+- **Tags pushed:** date tag (`yymm`) + `latest` to both registries
+- **Annotations:** mirror the OCI label standard (PART 2), with `url`/`source`/
+  `documentation` set to the workflow's repository URL
+
+## Legacy workflow (`docker.yaml`)
+
+A hand-crafted `.gitea/workflows/docker.yaml` may exist in older repos — reference copy in
+the org-level `.github` repo. **Never overwrite it, and never use it as a template for new
+work** — it uses tag-pinned actions and retired secret names. All new/updated workflows
+come from `gen-dockerfile actions`.
+
+---
+
+# PART 8: VERIFICATION & COMMIT
+
+## Syntax gates
+
+Every touched script must pass before commit:
+
+```bash
+for f in rootfs/usr/local/bin/*; do
+  [ -f "$f" ] || continue
+  case "$(head -1 "$f")" in
+    *bash*) bash -n "$f" || exit 1 ;;
+    *sh*)   sh -n "$f"   || exit 1 ;;
+  esac
+done
+
+bash -n rootfs/usr/local/etc/docker/functions/entrypoint.sh
+
+for f in rootfs/root/docker/setup/0*.sh rootfs/usr/local/etc/docker/init.d/*.sh; do
+  [ -f "$f" ] || continue
+  bash -n "$f" || exit 1
+done
+```
+
+## Dead-reference gates
+
+After any regeneration:
+
+1. No script references an env var removed from `.env.scripts` (diff-driven check).
+2. No script calls a function absent from both the current
+   `functions/entrypoint.sh` and the script itself.
+3. No `__copy_templates` calls remain (retired with `DEFAULT_TEMPLATE_DIR`).
+4. `Dockerfile` still pulls `FROM casjaysdev/*` (rule 8) — an upstream distro pull means
+   `GEN_DOCKERFILE_APP_DIR` resolved wrong during regeneration.
+
+## Commit
+
+```bash
+git status --porcelain
+git diff --stat
+```
+
+Write `.git/COMMIT_MESS` from the actual diff — subject ≤64 chars, body as
+`- path: change` bullets covering every changed file. Then:
+
+```bash
+gitcommit --dir "$(git rev-parse --show-toplevel)" all
+```
+
+`git commit` / `git push` directly are forbidden. Never commit with a failing syntax
+gate.
diff --git a/IDEA.md b/IDEA.md
index 156d7f8..4726596 100644
--- a/IDEA.md
+++ b/IDEA.md
@@ -1,3 +1,59 @@
 # aria2 — THE WHAT
 
 A single Alpine-based Docker image that provides a complete, self-hosted download solution: **aria2c** handles multi-protocol downloads (HTTP/HTTPS, FTP, SFTP, BitTorrent, Metalink) via a JSON-RPC daemon on port 6800, while **AriaNg** (a pure-static web UI bundled at build time) is served by **nginx** on port 80, which also reverse-proxies `/jsonrpc` and `/rpc` to aria2c so end users interact with a single port. BitTorrent peer traffic uses port 6888. The design is zero-config on first run: the container seeds `/config/aria2/aria2.conf` and `/config/nginx/nginx.conf` from baked-in optimized defaults, a `tracker.sh` helper refreshes the BitTorrent tracker list at each startup, and users who want RPC authentication simply set `RPC_SECRET` in the environment.
+
+# aria2 — THE HOW
+
+## Build flow
+
+Multi-stage Alpine Dockerfile (`casjaysdev/alpine` base → `FROM scratch` final).
+
+1. **Package install**: `pkmgr install aria2 bash tini curl wget tzdata ca-certificates unzip jq pwgen nginx` installs all components in one layer.
+2. **Setup scripts** (`rootfs/root/docker/setup/`): `03-files.sh` auto-installs everything under `rootfs/tmp/` into the image (`/etc/aria2/`, `/etc/nginx/`, `/usr/local/etc/docker/bin/`, etc.). `05-custom.sh` performs the wipe-and-replace — removes distro defaults from `/etc/aria2/` and `/etc/nginx/`, installs our optimized configs, and unpacks the pre-bundled AriaNg zip from `rootfs/tmp/ariang-src/AriaNg-*.zip` into `/usr/local/share/ariang/`.
+3. **AriaNg pre-bundle**: GitHub SSL is blocked inside the buildx sandbox on this host, so the AriaNg zip must be downloaded on the host first and placed at `rootfs/tmp/ariang-src/AriaNg-1.3.13.zip` (gitignored) before running `buildx`.
+4. **Final stage**: `FROM scratch` + `COPY --from=build /. /` produces a minimal image with tini as PID 1.
+
+## Runtime boot chain
+
+```
+tini → /usr/local/bin/entrypoint.sh → /usr/local/etc/docker/init.d/00-aria2c.sh → /usr/local/etc/docker/bin/start-aria2
+```
+
+- `entrypoint.sh` seeds `/config/` and `/data/` on first run (via `__initialize_config_dir` / `__initialize_data_dir`), then calls `__start_init_scripts` which sources and executes `init.d/00-aria2c.sh`.
+- `00-aria2c.sh` sources `functions/entrypoint.sh`, runs hook functions (`__run_pre_execute_checks` → `tracker.sh` to refresh BT trackers; `__update_conf_files` → token substitution: `REPLACE_RPC_PORT`, `REPLACE_SERVER_ADDR`, optional `rpc-secret` toggle, DHT port, log path, file-allocation, AriaNg config overlay), then calls the framework's `__run_start_script`.
+- `start-aria2` backgrounds `aria2c --conf-path=/config/aria2/aria2.conf`, waits for port 6800 to open, then `exec`s `nginx -c /config/nginx/nginx.conf -g 'daemon off;'` as the foreground process (becomes PID adopted by tini).
+
+## Key paths
+
+| Path | Role |
+|---|---|
+| `/usr/bin/aria2c` | Download daemon binary |
+| `/usr/sbin/nginx` | HTTP server binary |
+| `/usr/local/share/ariang/` | AriaNg static files (index.html, JS, CSS) |
+| `/usr/local/etc/docker/bin/start-aria2` | Wrapper: backgrounds aria2c, foregrounds nginx |
+| `/usr/local/etc/docker/init.d/00-aria2c.sh` | Init.d script — wires up the service |
+| `/usr/local/bin/tracker.sh` | P3TERX BT tracker updater |
+| `/config/aria2/aria2.conf` | User-editable aria2c config (seeded from `rootfs/tmp/etc/aria2/aria2.conf`) |
+| `/config/nginx/nginx.conf` | User-editable nginx config (seeded from `rootfs/tmp/etc/nginx/nginx.conf`) |
+| `/data/downloads/aria2/` | Download destination |
+| `/data/logs/aria2/aria2.log` | aria2c log |
+| `/data/logs/nginx/` | nginx access + error logs |
+
+## Config token substitution (00-aria2c.sh `__update_conf_files`)
+
+Tokens in `/config/aria2/aria2.conf` replaced at each container start:
+
+| Token | Replaced with |
+|---|---|
+| `REPLACE_RPC_PORT` | `${RPC_PORT:-6800}` |
+| `REPLACE_SERVER_ADDR` | Container IPv4 (via `__get_ip4`) |
+| `rpc-secret=REPLACE_RPC_SECRET` | Commented out unless `RPC_SECRET` env var is set |
+| `dht-listen-port=.*` | `dht-listen-port=6888` |
+| `log=.*` | `log=/data/logs/aria2/aria2.log` |
+| `file-allocation=.*` | `file-allocation=prealloc` |
+
+The AriaNg client config (`/config/aria2/aria-ng.config.js`) is also overlaid onto the bundled `js/aria-ng-*.min.js` so the UI auto-connects to the local RPC endpoint without user configuration.
+
+## Single init.d design
+
+The framework's `__start_init_scripts` only reliably runs the first `init.d/*.sh`. Two separate scripts (`00-aria2c.sh` + `zz-nginx.sh`) would only start aria2c. The resolution is a single init.d entry (`00-aria2c.sh`) pointing at the `start-aria2` wrapper script which manages both processes.