initial work

.gitignore

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+overlay/usr/app/images/*.tar
+immich.apkovl.tar.gz
+mkimage.sh

README.md

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+Steps to build:
+
+1. Fire up a local alpine image on Docker:
+
+```bash
+docker run --rm -it -v "$(pwd)":/home alpine sh
+```
+
+2. Inside the container, run
+
+```bash
+apk add alpine-sdk abuild
+```
+
+3. Run
+
+```bash
+tar --numeric-owner --owner=0 --group=0 -cf root-overlay.tar -C overlay .
+```
+
+3. Run
+
+```bash
+./mkimage.sh --tag immich \
+	--outdir out \
+	--arch x86_64 \
+	--repository https://dl-cdn.alpinelinux.org/alpine/latest-stable/main \
+	--profile immich
+
+```
+
+4.

immich.profile.sh

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+profile_immich() {
+        profile_standard
+        apks="$apks docker docker-compose"
+        apkovl="immich.apkovl.tar.gz"
+}

overlay/etc/local.d/immich.start

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+#!/bin/sh
+
+rc-update add docker boot
+service docker start

utils/gen-overlay.sh

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+#!/bin/sh -e
+
+HOSTNAME="$1"
+if [ -z "$HOSTNAME" ]; then
+	echo "usage: $0 hostname"
+	exit 1
+fi
+
+cleanup() {
+	rm -rf "$tmp"
+}
+
+makefile() {
+	OWNER="$1"
+	PERMS="$2"
+	FILENAME="$3"
+	cat > "$FILENAME"
+	chown "$OWNER" "$FILENAME"
+	chmod "$PERMS" "$FILENAME"
+}
+
+rc_add() {
+	mkdir -p "$tmp"/etc/runlevels/"$2"
+	ln -sf /etc/init.d/"$1" "$tmp"/etc/runlevels/"$2"/"$1"
+}
+
+
+tmp="$(mktemp -d)"
+trap cleanup EXIT
+
+mkdir -p "$tmp"/etc
+makefile root:root 0644 "$tmp"/etc/hostname <<EOF
+$HOSTNAME
+EOF
+
+mkdir -p "$tmp"/etc/network
+makefile root:root 0644 "$tmp"/etc/network/interfaces <<EOF
+auto lo
+iface lo inet loopback
+
+auto eth0
+iface eth0 inet dhcp
+EOF
+
+mkdir -p "$tmp"/etc/apk
+makefile root:root 0644 "$tmp"/etc/apk/world <<EOF
+alpine-base
+docker
+docker-compose
+EOF
+
+rc_add devfs sysinit
+rc_add dmesg sysinit
+rc_add mdev sysinit
+rc_add hwdrivers sysinit
+rc_add modloop sysinit
+
+rc_add hwclock boot
+rc_add modules boot
+rc_add sysctl boot
+rc_add hostname boot
+rc_add bootmisc boot
+rc_add syslog boot
+rc_add docker boot
+
+rc_add mount-ro shutdown
+rc_add killprocs shutdown
+rc_add savecache shutdown
+
+# copy all directories from overlay/ into $tmp and merge
+cp -a overlay/. "$tmp"/
+
+tar -c -C "$tmp" etc usr | gzip -9n > $HOSTNAME.apkovl.tar.gz

utils/pull-and-pack-images.sh

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+#!/bin/bash
+
+# Array of Docker image tags
+images=(
+  "ghcr.io/immich-app/immich-server:v1.137.3"
+  "ghcr.io/immich-app/immich-machine-learning:v1.137.3"
+  "docker.io/valkey/valkey:8-bookworm"
+  "ghcr.io/immich-app/postgres:14-vectorchord0.4.3-pgvectors0.2.0"
+)
+
+# Pull each image sequentially
+for img in "${images[@]}"; do
+  echo "Pulling $img..."
+  docker pull "$img"
+  docker save "$img" -o "overlay/usr/app/images/${img//[:\/]/_}.tar"
+done
+
+echo "All images pulled successfully."