diff --git a/README.md b/README.md
index bc5af8c..55e4f51 100644
--- a/README.md
+++ b/README.md
@@ -67,7 +67,7 @@ Update them any time with `sudo ./setup.sh configure`.
 |-------|---------|
 | `base` | `net-tools`, `ncdu`, `git`, `curl`, `wget`, `htop`, `tree`, `zip`/`unzip`, `ca-certificates`, `gnupg`, `jq`, `rsync`; `glow` (terminal markdown reader, Charm apt repo) |
 | `homelab` | `caddy`, `crowdsec`, `authelia`, `homeassistant`, `asterisk` |
-| `utilities` | `actualbudget`, `archivebox`, `changedetection`, `ddclient`, `filebrowser`, `fmd`, `gatus`, `homebox`, `joplin`, `koha`, `magicmirror`, `mail-archiver`, `mattermost`, `mealie`, `meshcentral`, `n8n`, `nextcloud`, `ntfy`, `onlyoffice`, `portainer`, `rustdesk`, `stirling-pdf`, `syncthing`, `traccar`, `unifi`, `uptimekuma`, `vaultwarden`, `watchyourlan`, `watchtower`, `wg-easy` |
+| `utilities` | `actualbudget`, `ai-gpu`, `archivebox`, `changedetection`, `ddclient`, `filebrowser`, `fmd`, `gatus`, `homebox`, `iopaint`, `joplin`, `koha`, `magicmirror`, `mail-archiver`, `mattermost`, `mealie`, `meshcentral`, `n8n`, `nextcloud`, `ntfy`, `onlyoffice`, `portainer`, `rustdesk`, `stirling-pdf`, `syncthing`, `traccar`, `unifi`, `uptimekuma`, `vaultwarden`, `watchyourlan`, `watchtower`, `wg-easy` |
 | `media` | `arm`, `audiobookshelf`, `calibre-web`, `emby`, `immich`, `jellyfin`, `lyrion` |
 | `cameras` | `frigate`, `frigate-audio`, `frigate-notify`, `sky-cam` |
 | `gaming` | `drum-rhythm-game`, `js99er`, `minecraft`, `wolf`, `wolf-pair` |
diff --git a/services/ai-gpu.sh b/services/ai-gpu.sh
new file mode 100644
index 0000000..5a645c7
--- /dev/null
+++ b/services/ai-gpu.sh
@@ -0,0 +1,449 @@
+#!/bin/bash
+# services/ai-gpu.sh — GPU AI stack: InvokeAI image gen + Ollama/OpenWebUI LLM + swap portal.
+# Part of the modular post-install system (sourced by setup.sh).
+#
+# Can also be run standalone on any machine:
+#   sudo bash ai-gpu.sh
+# (Docker + nvidia-container-toolkit must already be installed)
+#
+# Clones https://github.com/outis1one/ai-6gb-gpu and installs three stacks:
+#   image-gen/  — InvokeAI (port 9090), nvidia GPU, optimised for 6 GB VRAM
+#   llm/        — Ollama (11434) + Open WebUI (3000) + SearXNG (internal)
+#   portal/     — Flask app (port 8080), mounts Docker socket, hot-swaps GPU between stacks
+#
+# Because a 6 GB GPU can only run ONE stack at a time, the portal handles the swap:
+# stop the active stack, start the requested one. Stop image-gen before starting llm, and vice versa.
+
+# ── Standalone bootstrap ──────────────────────────────────────────────────────
+if [[ "${BASH_SOURCE[0]}" == "${0}" ]]; then
+    [[ "$(id -u)" == "0" ]] || { echo "Run with sudo: sudo bash $0"; exit 1; }
+
+    _SELF_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+    _COMMON="$_SELF_DIR/../lib/common.sh"
+
+    if [[ -f "$_COMMON" ]]; then
+        source "$_COMMON"
+    else
+        log_info()    { echo -e "\033[0;34m[INFO]\033[0m $*"; }
+        log_success() { echo -e "\033[0;32m[OK]\033[0m $*"; }
+        log_warning() { echo -e "\033[1;33m[WARN]\033[0m $*"; }
+        log_error()   { echo -e "\033[0;31m[ERROR]\033[0m $*" >&2; }
+
+        require_docker() {
+            command -v docker &>/dev/null || {
+                log_error "Docker not found. Install it first:"
+                log_error "  curl -fsSL https://get.docker.com | sudo sh"
+                return 1
+            }
+            docker compose version &>/dev/null || {
+                log_error "Docker Compose plugin missing:"
+                log_error "  sudo apt-get install -y docker-compose-plugin"
+                return 1
+            }
+        }
+
+        ensure_docker_dir_ownership() {
+            chown -R "$ACTUAL_USER:$ACTUAL_USER" "$@" 2>/dev/null || true
+        }
+
+        prompt_text() {
+            local _q="$1" _def="$2" _var="$3" _r
+            [[ "${UNATTENDED:-false}" == "true" ]] && { eval "$_var='$_def'"; return; }
+            read -r -p "  $_q " _r
+            eval "$_var='${_r:-$_def}'"
+        }
+
+        prompt_yn() {
+            local _q="$1" _def="$2" _var="$3" _r
+            [[ "${UNATTENDED:-false}" == "true" ]] && { eval "$_var='$_def'"; return; }
+            read -r -p "  $_q " _r
+            eval "$_var='${_r:-$_def}'"
+        }
+
+        configure_caddy_for_service() {
+            local _name="$1" _upstream="$2" _subdomain="$3" _extra="${4:-}"
+            local _caddy_dir="$DOCKER_DIR/caddy"
+            local _caddyfile="$_caddy_dir/Caddyfile"
+            local _display_port="${_upstream##*:}"
+
+            local _mode="none"
+            [[ -d "$_caddy_dir" ]] && _mode="local"
+            [[ -n "${CADDY_REMOTE_HOST:-}" ]] && [[ "$_mode" != "local" ]] && _mode="remote"
+            [[ "$_mode" == "none" ]] && {
+                log_info "Access $_name directly on port $_display_port."
+                return 0
+            }
+
+            echo ""
+            local _do_caddy=""
+            if [[ "$_mode" == "remote" ]]; then
+                log_info "Remote Caddy configured (${CADDY_REMOTE_HOST})."
+                log_info "A snippet file will be saved to ~/docker/caddy-snippets/."
+            fi
+            read -r -p "  Configure Caddy reverse proxy for $_name? [y/N]: " _do_caddy
+            [[ "${_do_caddy,,}" == "y" ]] || {
+                log_info "Skipping — access at: http://localhost:$_display_port"
+                return 0
+            }
+
+            local _default_domain=""
+            if [[ -n "${SITE_DOMAIN:-}" ]] && [[ "$SITE_DOMAIN" != "example.com" ]]; then
+                _default_domain="${_subdomain}.${SITE_DOMAIN}"
+                log_info "Default: $_default_domain"
+            fi
+            local _domain=""
+            read -r -p "  Domain [${_default_domain:-required}]: " _domain
+            _domain="${_domain:-$_default_domain}"
+            [[ -n "$_domain" ]] || { log_warning "No domain entered — skipping Caddy."; return 0; }
+
+            local _block_upstream="$_upstream"
+            if [[ "$_mode" == "remote" ]]; then
+                _block_upstream="${CADDY_REMOTE_HOST}:${_display_port}"
+            fi
+
+            local _site_block
+            _site_block="$(cat << CBLOCK
+
+# $_name
+${_domain} {
+    reverse_proxy ${_block_upstream}
+
+    header {
+        Strict-Transport-Security "max-age=31536000; includeSubDomains; preload"
+        X-Content-Type-Options "nosniff"
+        X-Frame-Options "SAMEORIGIN"
+        Referrer-Policy "strict-origin-when-cross-origin"
+    }
+
+    log {
+        output file /var/log/caddy/${_domain}.log
+        format json
+    }
+${_extra}
+}
+CBLOCK
+)"
+
+            if [[ "$_mode" == "local" ]]; then
+                if [[ -f "$_caddyfile" ]]; then
+                    local _bk="$_caddy_dir/Caddyfile.backup.$(date +%Y%m%d-%H%M%S)"
+                    cp "$_caddyfile" "$_bk"
+                    log_info "Backed up Caddyfile to $(basename "$_bk")"
+                else
+                    touch "$_caddyfile"
+                fi
+
+                if grep -q "^${_domain}" "$_caddyfile" 2>/dev/null; then
+                    log_warning "$_domain already in Caddyfile"
+                    local _ow=""
+                    read -r -p "  Overwrite? [y/N]: " _ow
+                    [[ "${_ow,,}" == "y" ]] || { log_info "Keeping existing entry."; return 0; }
+                    sed -i "/^${_domain}/,/^}/d" "$_caddyfile"
+                fi
+
+                printf '%s\n' "$_site_block" >> "$_caddyfile"
+                log_success "Added $_domain to Caddyfile"
+                docker exec caddy caddy fmt --overwrite /etc/caddy/Caddyfile 2>/dev/null || true
+                if docker exec caddy caddy reload --config /etc/caddy/Caddyfile 2>/dev/null; then
+                    log_success "$_name accessible at: https://$_domain"
+                else
+                    log_warning "Reload failed — check: docker logs caddy"
+                    log_info "Manual reload: docker exec caddy caddy reload --config /etc/caddy/Caddyfile"
+                fi
+            else
+                local _snippet_dir="$DOCKER_DIR/caddy-snippets"
+                local _snippet_file="$_snippet_dir/${_subdomain}.caddy"
+                mkdir -p "$_snippet_dir"
+                printf '%s\n' "$_site_block" > "$_snippet_file"
+                chown "$ACTUAL_USER:$ACTUAL_USER" "$_snippet_file" 2>/dev/null || true
+                log_success "Snippet saved: $_snippet_file"
+                log_info "Copy to Caddy machine:"
+                log_info "  scp $_snippet_file caddy-host:~/caddy-snippets/"
+                log_info "  rsync -av $_snippet_dir/ caddy-host:~/caddy-snippets/  (all at once)"
+            fi
+        }
+
+        write_readme() {
+            local _dir="$1"
+            mkdir -p "$_dir"
+            [[ "${DRY_RUN:-false}" == "true" ]] && return 0
+            cat > "$_dir/README.md"
+        }
+
+        generate_password() {
+            local _len="${1:-32}"
+            tr -dc 'A-Za-z0-9' < /dev/urandom | head -c "$_len"
+            echo
+        }
+    fi
+
+    ACTUAL_USER="${ACTUAL_USER:-${SUDO_USER:-$USER}}"
+    ACTUAL_HOME="$(getent passwd "$ACTUAL_USER" 2>/dev/null | cut -d: -f6 || echo "${HOME:-/root}")"
+    DOCKER_DIR="${DOCKER_DIR:-$ACTUAL_HOME/docker}"
+    DRY_RUN="${DRY_RUN:-false}"
+    UNATTENDED="${UNATTENDED:-false}"
+    SITE_TZ="${SITE_TZ:-$(cat /etc/timezone 2>/dev/null || echo UTC)}"
+    SITE_DOMAIN="${SITE_DOMAIN:-example.com}"
+    SITE_CADDY_NET="${SITE_CADDY_NET:-caddy_net}"
+    CADDY_REMOTE_HOST="${CADDY_REMOTE_HOST:-}"
+
+    register_service() { :; }
+    _RUN_STANDALONE=1
+fi
+# ─────────────────────────────────────────────────────────────────────────────
+
+register_service ai-gpu utilities "GPU AI stack — InvokeAI image gen + Ollama/OpenWebUI LLM (6 GB VRAM)" 9090
+
+install_ai_gpu() {
+    require_docker || return 1
+    log_info "Installing AI GPU stack (InvokeAI + Ollama/OpenWebUI + portal)..."
+    log_info "Requires: nvidia GPU with 6 GB+ VRAM, nvidia-container-toolkit installed."
+
+    local AI_DIR="$DOCKER_DIR/ai-gpu"
+    local REPO_URL="https://github.com/outis1one/ai-6gb-gpu.git"
+    local REPO_DIR="$AI_DIR/src"
+
+    if [ "$DRY_RUN" = true ]; then
+        echo "[DRY-RUN] Would clone $REPO_URL to $REPO_DIR"
+        echo "[DRY-RUN] Would create stacks: image-gen (InvokeAI:9090), llm (Ollama:11434 + OpenWebUI:3000), portal (8080)"
+        echo "[DRY-RUN] Would write .env files and patch portal volume paths to $ACTUAL_HOME/docker"
+        echo "[DRY-RUN] Would configure Caddy for portal (localai) and InvokeAI (images)"
+        return 0
+    fi
+
+    # TZ — repo defaults to America/New_York, replace with user preference
+    local TZ_VAL="${SITE_TZ:-UTC}"
+    prompt_text "Timezone (e.g. America/New_York) [$TZ_VAL]:" "$TZ_VAL" TZ_VAL
+    TZ_VAL="${TZ_VAL:-UTC}"
+
+    mkdir -p "$AI_DIR"
+
+    # ── Clone / update repo ───────────────────────────────────────────────────
+    if [ -d "$REPO_DIR/.git" ]; then
+        log_info "Updating ai-6gb-gpu repo..."
+        git -C "$REPO_DIR" pull --ff-only 2>/dev/null \
+            && log_success "Repo updated" \
+            || log_warning "Could not pull latest — using existing version"
+    else
+        log_info "Cloning ai-6gb-gpu repo..."
+        git clone --depth 1 "$REPO_URL" "$REPO_DIR" \
+            || { log_error "Clone failed — check network and git access"; return 1; }
+    fi
+
+    # ── Image-gen stack (InvokeAI) ────────────────────────────────────────────
+    local IMAGE_GEN_DIR="$AI_DIR/image-gen"
+    mkdir -p "$IMAGE_GEN_DIR"
+    if [ -d "$REPO_DIR/ai-image-gen" ]; then
+        cp -rn "$REPO_DIR/ai-image-gen/." "$IMAGE_GEN_DIR/" 2>/dev/null || true
+        # Replace any hardcoded timezone
+        find "$IMAGE_GEN_DIR" -name "docker-compose.yml" -exec \
+            sed -i "s|America/New_York|$TZ_VAL|g" {} \;
+    fi
+
+    cat > "$IMAGE_GEN_DIR/.env" << IMGENV
+# InvokeAI — image generation
+TZ=${TZ_VAL}
+# VRAM cap: 3 GB leaves headroom on a 6 GB card
+INVOKEAI_vram=3
+# RAM cache for model layers
+INVOKEAI_ram=8
+CADDY_NET=${SITE_CADDY_NET}
+IMGENV
+    chmod 600 "$IMAGE_GEN_DIR/.env"
+
+    # ── LLM stack (Ollama + Open WebUI + SearXNG) ─────────────────────────────
+    local LLM_DIR="$AI_DIR/llm"
+    mkdir -p "$LLM_DIR"
+    if [ -d "$REPO_DIR/ai-llm" ]; then
+        cp -rn "$REPO_DIR/ai-llm/." "$LLM_DIR/" 2>/dev/null || true
+        find "$LLM_DIR" -name "docker-compose.yml" -exec \
+            sed -i "s|America/New_York|$TZ_VAL|g" {} \;
+    fi
+
+    local WEBUI_SECRET
+    WEBUI_SECRET="$(generate_password 32)"
+
+    cat > "$LLM_DIR/.env" << LLMENV
+# Ollama + Open WebUI + SearXNG
+TZ=${TZ_VAL}
+# Open WebUI session secret
+WEBUI_SECRET_KEY=${WEBUI_SECRET}
+CADDY_NET=${SITE_CADDY_NET}
+LLMENV
+    chmod 600 "$LLM_DIR/.env"
+
+    # ── Portal stack (Flask GPU swap controller) ──────────────────────────────
+    local PORTAL_DIR="$AI_DIR/portal"
+    mkdir -p "$PORTAL_DIR"
+    if [ -d "$REPO_DIR/ai-portal" ]; then
+        cp -rn "$REPO_DIR/ai-portal/." "$PORTAL_DIR/" 2>/dev/null || true
+        # Fix hardcoded home path in docker-compose.yml volume mounts
+        if [ -f "$PORTAL_DIR/docker-compose.yml" ]; then
+            sed -i \
+                "s|/home/[^/]*/docker:|${ACTUAL_HOME}/docker:|g" \
+                "$PORTAL_DIR/docker-compose.yml"
+            sed -i "s|America/New_York|$TZ_VAL|g" "$PORTAL_DIR/docker-compose.yml"
+        fi
+    fi
+
+    cat > "$PORTAL_DIR/.env" << PORTALENV
+# AI Portal — GPU stack swap controller
+TZ=${TZ_VAL}
+# Paths inside the container (Docker socket mount maps ACTUAL_HOME/docker → /docker)
+IMAGE_STACK=/docker/ai-gpu/image-gen
+LLM_STACK=/docker/ai-gpu/llm
+CADDY_NET=${SITE_CADDY_NET}
+PORTALENV
+    chmod 600 "$PORTAL_DIR/.env"
+
+    # Set ownership across everything
+    ensure_docker_dir_ownership "$AI_DIR"
+
+    echo ""
+    log_success "AI GPU stacks configured under $AI_DIR"
+    log_info "Stack layout:"
+    log_info "  image-gen/  — InvokeAI  (port 9090,  nvidia GPU)"
+    log_info "  llm/        — Ollama (11434) + Open WebUI (3000) + SearXNG (internal)"
+    log_info "  portal/     — GPU swap portal (port 8080)"
+    echo ""
+    log_warning "Only ONE GPU stack can run at a time on a 6 GB card."
+    log_warning "Use the portal to switch, or manually: docker compose -f <stack>/docker-compose.yml down/up."
+
+    # ── Caddy ─────────────────────────────────────────────────────────────────
+    configure_caddy_for_service "AI Portal" "ai-portal:8080" "localai"
+    configure_caddy_for_service "InvokeAI" "invokeai:9090" "images"
+
+    # ── README ────────────────────────────────────────────────────────────────
+    write_readme "$AI_DIR" << MD
+# AI GPU Stack
+
+Three Docker stacks optimised for a 6 GB VRAM nvidia GPU.
+Source: https://github.com/outis1one/ai-6gb-gpu
+
+## Stacks
+
+| Stack | Service | Port | Notes |
+|-------|---------|------|-------|
+| \`image-gen/\` | InvokeAI | 9090 | Image generation (SDXL, Flux, etc.) |
+| \`llm/\` | Ollama | 11434 | LLM inference engine |
+| \`llm/\` | Open WebUI | 3000 | Chat UI for Ollama |
+| \`llm/\` | SearXNG | — | Internal web search for RAG |
+| \`portal/\` | AI Portal | 8080 | GPU swap controller UI |
+
+## Important: GPU time-sharing
+
+A 6 GB GPU can only run one AI stack at a time. Use the portal at
+http://localhost:8080 to swap between image-gen and llm — it stops the
+active stack before starting the requested one.
+
+Manual swap:
+\`\`\`bash
+# Stop image-gen, start llm
+docker compose -f $AI_DIR/image-gen/docker-compose.yml down
+docker compose -f $AI_DIR/llm/docker-compose.yml up -d
+
+# Stop llm, start image-gen
+docker compose -f $AI_DIR/llm/docker-compose.yml down
+docker compose -f $AI_DIR/image-gen/docker-compose.yml up -d
+\`\`\`
+
+## First-run setup
+
+### InvokeAI
+1. Open http://localhost:9090
+2. Install models via the Model Manager (HuggingFace token may be needed)
+3. Recommended for 6 GB: SDXL-Turbo, Flux-Schnell-quantised
+
+### Ollama
+\`\`\`bash
+# Pull a model (while llm stack is running)
+docker exec ollama ollama pull llama3.2
+docker exec ollama ollama pull nomic-embed-text  # for RAG embeddings
+\`\`\`
+
+### Open WebUI
+Open http://localhost:3000 — create admin account on first visit.
+
+## Manage individual stacks
+\`\`\`bash
+# Image generation
+cd $AI_DIR/image-gen
+docker compose up -d
+docker compose down
+docker compose logs -f invokeai
+
+# LLM + chat
+cd $AI_DIR/llm
+docker compose up -d
+docker compose down
+docker compose logs -f openwebui
+
+# Portal
+cd $AI_DIR/portal
+docker compose up -d
+docker compose down
+\`\`\`
+
+## Update
+\`\`\`bash
+# Pull latest repo changes and rebuild
+cd $REPO_DIR && git pull
+cd $AI_DIR/image-gen && docker compose pull && docker compose up -d
+cd $AI_DIR/llm       && docker compose pull && docker compose up -d
+cd $AI_DIR/portal    && docker compose build --pull && docker compose up -d
+\`\`\`
+
+## Files
+- image-gen/.env  — InvokeAI VRAM/RAM limits and TZ
+- llm/.env        — Open WebUI secret key and TZ
+- portal/.env     — stack paths and TZ
+MD
+
+    # ── Start prompt ──────────────────────────────────────────────────────────
+    echo ""
+    log_info "Which stack do you want to start now?"
+    log_info "  1) Portal only (recommended first — lets you manage the others)"
+    log_info "  2) Portal + image-gen (InvokeAI)"
+    log_info "  3) Portal + llm (Ollama/OpenWebUI)"
+    log_info "  4) None — start manually later"
+
+    local START_CHOICE=""
+    prompt_text "Choice [1]:" "1" START_CHOICE
+
+    case "$START_CHOICE" in
+        1)
+            docker compose -f "$PORTAL_DIR/docker-compose.yml" up -d \
+                && log_success "Portal started — http://localhost:8080" \
+                || log_warning "Portal start failed — check: docker compose -f $PORTAL_DIR/docker-compose.yml logs"
+            ;;
+        2)
+            docker compose -f "$PORTAL_DIR/docker-compose.yml" up -d \
+                && log_success "Portal started" \
+                || log_warning "Portal start failed"
+            docker compose -f "$IMAGE_GEN_DIR/docker-compose.yml" up -d \
+                && log_success "InvokeAI started — http://localhost:9090" \
+                || log_warning "InvokeAI start failed — check: docker compose -f $IMAGE_GEN_DIR/docker-compose.yml logs"
+            ;;
+        3)
+            docker compose -f "$PORTAL_DIR/docker-compose.yml" up -d \
+                && log_success "Portal started" \
+                || log_warning "Portal start failed"
+            docker compose -f "$LLM_DIR/docker-compose.yml" up -d \
+                && log_success "LLM stack started — Open WebUI: http://localhost:3000" \
+                || log_warning "LLM start failed — check: docker compose -f $LLM_DIR/docker-compose.yml logs"
+            ;;
+        *)
+            log_info "Skipped. Start when ready:"
+            log_info "  docker compose -f $PORTAL_DIR/docker-compose.yml up -d"
+            ;;
+    esac
+
+    echo ""
+    echo "  Portal:    http://localhost:8080"
+    echo "  InvokeAI:  http://localhost:9090  (image-gen stack)"
+    echo "  OpenWebUI: http://localhost:3000  (llm stack)"
+    echo "  Source:    $REPO_DIR"
+    echo ""
+}
+
+[[ "${_RUN_STANDALONE:-0}" == 1 ]] && install_ai_gpu
diff --git a/services/iopaint.sh b/services/iopaint.sh
new file mode 100644
index 0000000..20b0861
--- /dev/null
+++ b/services/iopaint.sh
@@ -0,0 +1,364 @@
+#!/bin/bash
+# services/iopaint.sh — AI image inpainting: object removal, fill, restore (IOPaint + LaMa).
+# Part of the modular post-install system (sourced by setup.sh).
+#
+# Can also be run standalone on any machine:
+#   sudo bash iopaint.sh
+# (Docker must already be installed when run standalone)
+#
+# Runs the LaMa model (erase/fill objects) by default on CPU.
+# For GPU inference set DEVICE=cuda in .env and install nvidia-container-toolkit.
+# IOPaint has no built-in auth — protect with Authelia via Caddy.
+
+# ── Standalone bootstrap ──────────────────────────────────────────────────────
+if [[ "${BASH_SOURCE[0]}" == "${0}" ]]; then
+    [[ "$(id -u)" == "0" ]] || { echo "Run with sudo: sudo bash $0"; exit 1; }
+
+    _SELF_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+    _COMMON="$_SELF_DIR/../lib/common.sh"
+
+    if [[ -f "$_COMMON" ]]; then
+        source "$_COMMON"
+    else
+        log_info()    { echo -e "\033[0;34m[INFO]\033[0m $*"; }
+        log_success() { echo -e "\033[0;32m[OK]\033[0m $*"; }
+        log_warning() { echo -e "\033[1;33m[WARN]\033[0m $*"; }
+        log_error()   { echo -e "\033[0;31m[ERROR]\033[0m $*" >&2; }
+
+        require_docker() {
+            command -v docker &>/dev/null || {
+                log_error "Docker not found. Install it first:"
+                log_error "  curl -fsSL https://get.docker.com | sudo sh"
+                return 1
+            }
+            docker compose version &>/dev/null || {
+                log_error "Docker Compose plugin missing:"
+                log_error "  sudo apt-get install -y docker-compose-plugin"
+                return 1
+            }
+        }
+
+        ensure_docker_dir_ownership() {
+            chown -R "$ACTUAL_USER:$ACTUAL_USER" "$@" 2>/dev/null || true
+        }
+
+        prompt_text() {
+            local _q="$1" _def="$2" _var="$3" _r
+            [[ "${UNATTENDED:-false}" == "true" ]] && { eval "$_var='$_def'"; return; }
+            read -r -p "  $_q " _r
+            eval "$_var='${_r:-$_def}'"
+        }
+
+        prompt_yn() {
+            local _q="$1" _def="$2" _var="$3" _r
+            [[ "${UNATTENDED:-false}" == "true" ]] && { eval "$_var='$_def'"; return; }
+            read -r -p "  $_q " _r
+            eval "$_var='${_r:-$_def}'"
+        }
+
+        configure_caddy_for_service() {
+            local _name="$1" _upstream="$2" _subdomain="$3" _extra="${4:-}"
+            local _caddy_dir="$DOCKER_DIR/caddy"
+            local _caddyfile="$_caddy_dir/Caddyfile"
+            local _display_port="${_upstream##*:}"
+
+            local _mode="none"
+            [[ -d "$_caddy_dir" ]] && _mode="local"
+            [[ -n "${CADDY_REMOTE_HOST:-}" ]] && [[ "$_mode" != "local" ]] && _mode="remote"
+            [[ "$_mode" == "none" ]] && {
+                log_info "Access $_name directly on port $_display_port."
+                return 0
+            }
+
+            echo ""
+            local _do_caddy=""
+            if [[ "$_mode" == "remote" ]]; then
+                log_info "Remote Caddy configured (${CADDY_REMOTE_HOST})."
+                log_info "A snippet file will be saved to ~/docker/caddy-snippets/."
+            fi
+            read -r -p "  Configure Caddy reverse proxy for $_name? [y/N]: " _do_caddy
+            [[ "${_do_caddy,,}" == "y" ]] || {
+                log_info "Skipping — access at: http://localhost:$_display_port"
+                return 0
+            }
+
+            local _default_domain=""
+            if [[ -n "${SITE_DOMAIN:-}" ]] && [[ "$SITE_DOMAIN" != "example.com" ]]; then
+                _default_domain="${_subdomain}.${SITE_DOMAIN}"
+                log_info "Default: $_default_domain"
+            fi
+            local _domain=""
+            read -r -p "  Domain [${_default_domain:-required}]: " _domain
+            _domain="${_domain:-$_default_domain}"
+            [[ -n "$_domain" ]] || { log_warning "No domain entered — skipping Caddy."; return 0; }
+
+            local _block_upstream="$_upstream"
+            if [[ "$_mode" == "remote" ]]; then
+                _block_upstream="${CADDY_REMOTE_HOST}:${_display_port}"
+            fi
+
+            local _site_block
+            _site_block="$(cat << CBLOCK
+
+# $_name
+${_domain} {
+    reverse_proxy ${_block_upstream}
+
+    header {
+        Strict-Transport-Security "max-age=31536000; includeSubDomains; preload"
+        X-Content-Type-Options "nosniff"
+        X-Frame-Options "SAMEORIGIN"
+        Referrer-Policy "strict-origin-when-cross-origin"
+    }
+
+    log {
+        output file /var/log/caddy/${_domain}.log
+        format json
+    }
+${_extra}
+}
+CBLOCK
+)"
+
+            if [[ "$_mode" == "local" ]]; then
+                if [[ -f "$_caddyfile" ]]; then
+                    local _bk="$_caddy_dir/Caddyfile.backup.$(date +%Y%m%d-%H%M%S)"
+                    cp "$_caddyfile" "$_bk"
+                    log_info "Backed up Caddyfile to $(basename "$_bk")"
+                else
+                    touch "$_caddyfile"
+                fi
+
+                if grep -q "^${_domain}" "$_caddyfile" 2>/dev/null; then
+                    log_warning "$_domain already in Caddyfile"
+                    local _ow=""
+                    read -r -p "  Overwrite? [y/N]: " _ow
+                    [[ "${_ow,,}" == "y" ]] || { log_info "Keeping existing entry."; return 0; }
+                    sed -i "/^${_domain}/,/^}/d" "$_caddyfile"
+                fi
+
+                printf '%s\n' "$_site_block" >> "$_caddyfile"
+                log_success "Added $_domain to Caddyfile"
+                docker exec caddy caddy fmt --overwrite /etc/caddy/Caddyfile 2>/dev/null || true
+                if docker exec caddy caddy reload --config /etc/caddy/Caddyfile 2>/dev/null; then
+                    log_success "$_name accessible at: https://$_domain"
+                else
+                    log_warning "Reload failed — check: docker logs caddy"
+                    log_info "Manual reload: docker exec caddy caddy reload --config /etc/caddy/Caddyfile"
+                fi
+            else
+                local _snippet_dir="$DOCKER_DIR/caddy-snippets"
+                local _snippet_file="$_snippet_dir/${_subdomain}.caddy"
+                mkdir -p "$_snippet_dir"
+                printf '%s\n' "$_site_block" > "$_snippet_file"
+                chown "$ACTUAL_USER:$ACTUAL_USER" "$_snippet_file" 2>/dev/null || true
+                log_success "Snippet saved: $_snippet_file"
+                log_info "Copy to Caddy machine:"
+                log_info "  scp $_snippet_file caddy-host:~/caddy-snippets/"
+                log_info "  rsync -av $_snippet_dir/ caddy-host:~/caddy-snippets/  (all at once)"
+            fi
+        }
+
+        write_readme() {
+            local _dir="$1"
+            mkdir -p "$_dir"
+            [[ "${DRY_RUN:-false}" == "true" ]] && return 0
+            cat > "$_dir/README.md"
+        }
+    fi
+
+    ACTUAL_USER="${ACTUAL_USER:-${SUDO_USER:-$USER}}"
+    ACTUAL_HOME="$(getent passwd "$ACTUAL_USER" 2>/dev/null | cut -d: -f6 || echo "${HOME:-/root}")"
+    DOCKER_DIR="${DOCKER_DIR:-$ACTUAL_HOME/docker}"
+    DRY_RUN="${DRY_RUN:-false}"
+    UNATTENDED="${UNATTENDED:-false}"
+    SITE_TZ="${SITE_TZ:-$(cat /etc/timezone 2>/dev/null || echo UTC)}"
+    SITE_DOMAIN="${SITE_DOMAIN:-example.com}"
+    SITE_CADDY_NET="${SITE_CADDY_NET:-caddy_net}"
+    CADDY_REMOTE_HOST="${CADDY_REMOTE_HOST:-}"
+
+    register_service() { :; }
+    _RUN_STANDALONE=1
+fi
+# ─────────────────────────────────────────────────────────────────────────────
+
+register_service iopaint utilities "AI image inpainting — erase objects, fill, restore (IOPaint)" 8100
+
+install_iopaint() {
+    require_docker || return 1
+    log_info "Installing IOPaint..."
+
+    local IOPAINT_DIR="$DOCKER_DIR/iopaint"
+
+    if [ "$DRY_RUN" = true ]; then
+        echo "[DRY-RUN] Would create $IOPAINT_DIR"
+        echo "[DRY-RUN] Would write docker-compose.yml and .env"
+        echo "[DRY-RUN] Would offer GPU (CUDA) support and Authelia SSO"
+        return 0
+    fi
+
+    mkdir -p "$IOPAINT_DIR"
+    ensure_docker_dir_ownership "$IOPAINT_DIR"
+    cd "$IOPAINT_DIR" || return 1
+
+    # Ask about GPU
+    local USE_GPU=""
+    prompt_yn "Enable CUDA GPU support? Requires nvidia-container-toolkit (y/n):" "n" USE_GPU
+
+    if [[ "$USE_GPU" =~ ^[Yy]$ ]]; then
+        cat > docker-compose.yml << 'IOPAINT_GPU'
+name: iopaint
+
+services:
+  iopaint:
+    image: cwq1913/iopaint:latest
+    container_name: iopaint
+    hostname: iopaint
+    restart: unless-stopped
+    command: iopaint start --model=lama --device=cuda --port=8080 --host=0.0.0.0
+    ports:
+      - "8100:8080"
+    volumes:
+      - ./models:/root/.cache/iopaint
+      - ./input:/app/input
+      - ./output:/app/output
+    environment:
+      - DEVICE=cuda
+    deploy:
+      resources:
+        reservations:
+          devices:
+            - driver: nvidia
+              count: 1
+              capabilities: [gpu]
+    networks:
+      - caddy_net
+
+networks:
+  caddy_net:
+    external: true
+    name: ${CADDY_NET:-caddy_net}
+IOPAINT_GPU
+        log_info "CUDA GPU mode enabled."
+    else
+        cat > docker-compose.yml << 'IOPAINT_CPU'
+name: iopaint
+
+services:
+  iopaint:
+    image: cwq1913/iopaint:latest
+    container_name: iopaint
+    hostname: iopaint
+    restart: unless-stopped
+    command: iopaint start --model=lama --device=cpu --port=8080 --host=0.0.0.0
+    ports:
+      - "8100:8080"
+    volumes:
+      - ./models:/root/.cache/iopaint
+      - ./input:/app/input
+      - ./output:/app/output
+    networks:
+      - caddy_net
+
+networks:
+  caddy_net:
+    external: true
+    name: ${CADDY_NET:-caddy_net}
+IOPAINT_CPU
+        log_info "CPU mode (default). Change DEVICE to cuda in .env and update the command to use GPU later."
+    fi
+
+    cat > .env << IOPAINT_ENV
+# IOPaint configuration
+
+# Model to use for inpainting (lama recommended for object removal/erase)
+# Other models: ldm, zits, mat, fcf, manga, cv2, migan
+MODEL=lama
+
+# Device: cpu or cuda (cuda requires nvidia-container-toolkit + GPU deploy block)
+DEVICE=$([ "${USE_GPU,,}" = "y" ] && echo "cuda" || echo "cpu")
+
+# Caddy network
+CADDY_NET=${SITE_CADDY_NET}
+IOPAINT_ENV
+    chmod 600 .env
+
+    mkdir -p models input output
+    chown -R "$ACTUAL_USER:$ACTUAL_USER" "$IOPAINT_DIR"
+
+    echo ""
+    log_success "IOPaint configured at $IOPAINT_DIR"
+    log_info "LaMa model downloads on first start (~170 MB). Upload images via the web UI."
+    log_info "To switch models later: edit the --model= argument in docker-compose.yml and restart."
+
+    # No built-in auth — offer Authelia SSO protection
+    local EXTRA_BLOCK=""
+    if [ -d "$DOCKER_DIR/authelia" ]; then
+        local _use_auth=""
+        prompt_yn "Protect IOPaint with Authelia SSO? (y/n):" "y" _use_auth
+        [[ "$_use_auth" =~ ^[Yy]$ ]] && EXTRA_BLOCK="    import authelia"
+    fi
+
+    configure_caddy_for_service "IOPaint" "iopaint:8080" "inpaint" "$EXTRA_BLOCK"
+
+    write_readme "$IOPAINT_DIR" << MD
+# IOPaint
+
+AI-powered image inpainting — erase objects, fill regions, restore photos.
+Uses the LaMa (Large Mask) model for high-quality object removal by default.
+
+## Access
+- URL: http://localhost:8100
+- No built-in login — protect via Authelia SSO if needed
+
+## Models
+The \`--model\` argument in docker-compose.yml selects the AI model:
+| Model  | Best for |
+|--------|----------|
+| \`lama\` | Object removal, erase (default) |
+| \`ldm\`  | Texture-aware fill |
+| \`zits\` | Face/portrait restoration |
+| \`mat\`  | Large missing region fill |
+| \`manga\`| Manga/comic text removal |
+
+Models download automatically on first use. Cached in \`./models/\`.
+
+## GPU acceleration
+Requires \`nvidia-container-toolkit\`. To enable:
+1. Edit docker-compose.yml: change \`--device=cpu\` → \`--device=cuda\`
+2. Uncomment the \`deploy:\` block (or re-run this installer with GPU=y)
+3. Restart: \`docker compose down && docker compose up -d\`
+
+## Manage
+\`\`\`bash
+cd $IOPAINT_DIR
+docker compose up -d                                      # start
+docker compose down                                       # stop
+docker compose logs -f                                    # logs
+docker compose pull && docker compose down && docker compose up -d  # update
+\`\`\`
+
+## Files
+- docker-compose.yml — stack definition (edit for model/device changes)
+- .env               — runtime config
+- models/            — cached AI model weights
+- input/             — optional: place images here
+- output/            — processed images written here
+MD
+
+    local START_IO=""
+    prompt_yn "Start IOPaint now? (y/n):" "y" START_IO
+    if [ "$START_IO" = "y" ] || [ "$START_IO" = "Y" ]; then
+        docker compose up -d \
+            && log_success "IOPaint started — LaMa model will download on first use" \
+            || log_warning "Start failed — check: docker compose logs"
+    fi
+
+    echo ""
+    echo "  URL:      http://localhost:8100"
+    echo "  Model:    LaMa (erase / object removal)"
+    echo "  Device:   $([ "${USE_GPU,,}" = "y" ] && echo "CUDA GPU" || echo "CPU")"
+    echo ""
+}
+
+[[ "${_RUN_STANDALONE:-0}" == 1 ]] && install_iopaint