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+# CasjaysDev Docker Application Image Specification (casjaysdevdocker)
+
+**Name**: {name}
+
+**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.
+
+**Note:** `{name}` in this file is a reference token, not setup-time replacement text. Its
+value is always the repo directory basename (`basename "$PWD"`).
+
+**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 |
+| 9 | Examples from real repos |
+
+---
+
+# 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
+
+```
+{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)
+```
+
+`[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.
+
+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.
+
+## rootfs top-level policy
+
+The only valid directories at the `rootfs/` root are `root/`, `tmp/`, and `usr/`.
+Anything else is a leftover from old patterns. Migration map:
+
+| 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}` |
+
+`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.
+
+## Repo type detection
+
+A repo is an **app** repo when no `Dockerfile.*` variant files exist:
+
+```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.
+
+## Project Memory (.claude/memory/)
+
+Durable, repo-specific knowledge discovered during work on this image — a template
+quirk, a base-image gotcha, a decision on why something deviates from the generated
+default — belongs in `.claude/memory/`, not only in a commit message or chat. Committed
+to the repo, not gitignored. One markdown file per topic, YAML frontmatter (`name`,
+`description`, `type: project`), indexed by `.claude/memory/MEMORY.md`, read on demand.
+Same credential-masking rule as everywhere else — never store secrets. `~/.claude/**`
+(global) stays read-only, deployed only via `claudemgr/config`'s `install.sh`;
+`.claude/memory/` here is read/write in this repo directly.
+
+---
+
+# PART 9: EXAMPLES FROM REAL REPOS
+
+Real excerpts from live `casjaysdevdocker` repos, showing how the conventions look
+in practice. Use these as reference patterns — do not copy them verbatim into other
+repos; adapt names, paths, and versions.
+
+## 9.1 — App-install `05-custom.sh` (from `casjaysdevdocker/gitea`)
+
+App repos always own a non-stub `05-custom.sh` — it is where the application binary
+is installed. The gitea repo (100 lines) shows the canonical version-resolution and
+download pattern:
+
+```bash
+# Set bash options
+set -o pipefail
+[ "$DEBUGGER" = "on" ] && echo "Enabling debugging" && set -x$DEBUGGER_OPTIONS
+# - - - - - - - - - - - - - - - - - - - - - - - - -
+# Set env variables
+exitCode=0
+apk add --no-cache ca-certificates 2>/dev/null || true
+update-ca-certificates 2>/dev/null || true
+GITEA_VERSION="${GITEA_VERSION:-latest}"
+GITEA_BIN_FILE="/usr/local/bin/gitea"
+ARCH="$(uname -m | tr '[:upper]' '[:lower]')"
+case "$ARCH" in x86_64) ARCH="amd64" ;; aarch64) ARCH="arm64" ;; *) echo "$ARCH is not supported by this script" >&2 && exit 1 ;; esac
+# Pinned fallback used when gitea.com is unreachable from the build host
+ACT_RUNNER_FALLBACK_VERSION="${ACT_RUNNER_FALLBACK_VERSION:-v1.0.8}"
+# Fetch latest version tag from the renamed repo — 30s connect timeout
+ACT_VERSIONS="$(curl -q --connect-timeout 30 --max-time 45 -LSsf \
+  'https://gitea.com/api/v1/repos/gitea/runner/releases' \
+  -H 'accept: application/json' 2>/dev/null | jq -r '.[].tag_name' | sort -Vr | head -n1)"
+# Fall back to pinned version if API is unreachable
+[ -z "$ACT_VERSIONS" ] && ACT_VERSIONS="$ACT_RUNNER_FALLBACK_VERSION"
+if [ -z "$GITEA_VERSION" ] || [ "$GITEA_VERSION" = "latest" ]; then
+	_latest_url="$(curl -4sfL -o /dev/null -w '%{url_effective}' https://github.com/go-gitea/gitea/releases/latest 2>/dev/null)"
+	GITEA_VERSION="$(printf '%s\n' "$_latest_url" | grep -oE '[0-9]+\.[0-9]+\.[0-9]+')"
+fi
+GITEA_URL="https://github.com/go-gitea/gitea/releases/download/v${GITEA_VERSION}/gitea-${GITEA_VERSION}-linux-${ARCH}"
+```
+
+Patterns to note:
+
+- Version defaults to `latest` but resolves to a concrete number at build time via
+  the upstream API, with a pinned fallback for offline/rate-limited builds
+- Arch mapping (`x86_64→amd64`, `aarch64→arm64`) with a hard error for anything else
+- Bounded curl (`--connect-timeout`/`--max-time`), never open-ended
+- Downloads land in `/usr/local/bin`, are chmodded, and verified before exit 0
+
+## 9.2 — init.d service script config block (from `casjaysdevdocker/gitea` `08-gitea.sh`)
+
+One init.d script per service, generated by `gen-script` and then configured by
+editing ONLY the variable block — the function bodies below it are template code.
+The configured block from `08-gitea.sh`:
+
+```bash
+SERVICE_NAME="gitea"
+# set data directory
+DATA_DIR="/data/gitea"
+# set config directory
+CONF_DIR="/config/gitea"
+# set the containers etc directory
+ETC_DIR="/etc/gitea"
+# set the temp dir
+TMP_DIR="/tmp/gitea"
+# set scripts pid dir
+RUN_DIR="/run/gitea"
+# set log directory
+LOG_DIR="/data/logs/gitea"
+# Set the working dir
+WORK_DIR="/data/gitea"
+# port which service is listening on
+SERVICE_PORT="80"
+# gitea must run as git user, not root
+RUNAS_USER="git"
+# execute command as another user
+SERVICE_USER="git"
+# Set the service group
+SERVICE_GROUP="git"
+# execute command variables - keep single quotes variables will be expanded later
+# command to execute
+EXEC_CMD_BIN='gitea'
+# command arguments
+EXEC_CMD_ARGS='web '
+# command arguments
+EXEC_CMD_ARGS+='--port $SERVICE_PORT --config $CONF_DIR/app.ini '
+```
+
+Patterns to note:
+
+- Dir vars all derive from `$SERVICE_NAME` (`/data/{svc}`, `/config/{svc}`,
+  `/run/{svc}`, `/data/logs/{svc}`)
+- `EXEC_CMD_BIN`/`EXEC_CMD_ARGS` stay single-quoted — template code expands them
+  later, after ports and paths are finalized
+- Multi-word args are built up with `EXEC_CMD_ARGS+=`, one concern per line
+
+## 9.3 — Customizing behavior via `*_local()` hooks (from `08-gitea.sh`)
+
+Template functions (`__pre_execute`, `__update_conf_files`, …) each end by calling
+an optional `*_local()` hook. Repo-specific behavior goes in the hook, never inside
+the template function body:
+
+```bash
+# function to run before executing
+__pre_execute() {
+	local exitCode=0
+	...
+	# allow custom functions
+	if builtin type -t __pre_execute_local | grep -q 'function'; then __pre_execute_local; fi
+	return $exitCode
+}
+```
+
+The stubs (`__pre_execute_local() { true; }` etc.) live near the bottom of the
+script — replace a stub's body to customize; regeneration then only requires
+re-applying the variable block and the non-stub hooks. Multi-service apps ship one
+script per service with two-digit ordering (`05-dockerd.sh`, `08-gitea.sh`,
+`zz-act_runner.sh` for run-last).