diff --git a/apps/backoffice/app/api/libraries/[id]/reading-status-provider/route.ts b/apps/backoffice/app/api/libraries/[id]/reading-status-provider/route.ts
new file mode 100644
index 0000000..58138bb
--- /dev/null
+++ b/apps/backoffice/app/api/libraries/[id]/reading-status-provider/route.ts
@@ -0,0 +1,21 @@
+import { NextResponse } from "next/server";
+import { apiFetch } from "@/lib/api";
+
+export async function PATCH(
+  request: Request,
+  { params }: { params: Promise<{ id: string }> }
+) {
+  const { id } = await params;
+  try {
+    const body = await request.json();
+    const data = await apiFetch(`/libraries/${id}/reading-status-provider`, {
+      method: "PATCH",
+      headers: { "Content-Type": "application/json" },
+      body: JSON.stringify(body),
+    });
+    return NextResponse.json(data);
+  } catch (error) {
+    const message = error instanceof Error ? error.message : "Failed to update reading status provider";
+    return NextResponse.json({ error: message }, { status: 500 });
+  }
+}
diff --git a/infra/migrations/0050_add_users.sql b/infra/migrations/0050_add_users.sql
new file mode 100644
index 0000000..d4c1dc2
--- /dev/null
+++ b/infra/migrations/0050_add_users.sql
@@ -0,0 +1,36 @@
+CREATE TABLE users (
+    id         UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    username   TEXT NOT NULL UNIQUE,
+    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+
+-- Les tokens read ont un user_id obligatoire, les tokens admin NULL
+ALTER TABLE api_tokens ADD COLUMN user_id UUID REFERENCES users(id) ON DELETE CASCADE;
+
+-- Rendre book_reading_progress par user
+ALTER TABLE book_reading_progress DROP CONSTRAINT book_reading_progress_pkey;
+ALTER TABLE book_reading_progress ADD COLUMN user_id UUID REFERENCES users(id) ON DELETE CASCADE;
+
+-- Créer un user par défaut si des données existantes doivent être migrées
+INSERT INTO users (id, username)
+    SELECT '00000000-0000-0000-0000-000000000001', 'default'
+    WHERE EXISTS (
+        SELECT 1 FROM book_reading_progress WHERE user_id IS NULL
+        UNION ALL
+        SELECT 1 FROM api_tokens WHERE scope = 'read' AND user_id IS NULL
+    );
+
+-- Rattacher les anciennes progressions de lecture au user default
+UPDATE book_reading_progress
+    SET user_id = '00000000-0000-0000-0000-000000000001'
+    WHERE user_id IS NULL;
+
+-- Rattacher les anciens tokens read au user default
+UPDATE api_tokens
+    SET user_id = '00000000-0000-0000-0000-000000000001'
+    WHERE scope = 'read' AND user_id IS NULL;
+
+ALTER TABLE book_reading_progress ALTER COLUMN user_id SET NOT NULL;
+ALTER TABLE book_reading_progress ADD PRIMARY KEY (book_id, user_id);
+DROP INDEX IF EXISTS idx_book_reading_progress_status;
+CREATE INDEX idx_book_reading_progress_status ON book_reading_progress(status, user_id);
diff --git a/infra/migrations/0052_add_anilist_integration.sql b/infra/migrations/0052_add_anilist_integration.sql
new file mode 100644
index 0000000..a4a2023
--- /dev/null
+++ b/infra/migrations/0052_add_anilist_integration.sql
@@ -0,0 +1,16 @@
+-- Add AniList sync support
+ALTER TABLE libraries ADD COLUMN anilist_enabled BOOLEAN NOT NULL DEFAULT FALSE;
+
+CREATE TABLE anilist_series_links (
+    library_id    UUID    NOT NULL REFERENCES libraries(id) ON DELETE CASCADE,
+    series_name   TEXT    NOT NULL,
+    anilist_id    INTEGER NOT NULL,
+    anilist_title TEXT,
+    anilist_url   TEXT,
+    status        TEXT    NOT NULL DEFAULT 'linked', -- 'linked' | 'synced' | 'error'
+    linked_at     TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    synced_at     TIMESTAMPTZ,
+    PRIMARY KEY (library_id, series_name)
+);
+
+CREATE INDEX idx_anilist_series_links_library ON anilist_series_links(library_id);
diff --git a/infra/migrations/0053_add_reading_status_provider.sql b/infra/migrations/0053_add_reading_status_provider.sql
new file mode 100644
index 0000000..9159ce7
--- /dev/null
+++ b/infra/migrations/0053_add_reading_status_provider.sql
@@ -0,0 +1,10 @@
+-- Replace anilist_enabled boolean with generic reading_status_provider
+ALTER TABLE libraries ADD COLUMN reading_status_provider TEXT;
+UPDATE libraries SET reading_status_provider = 'anilist' WHERE anilist_enabled = TRUE;
+ALTER TABLE libraries DROP COLUMN anilist_enabled;
+
+-- Add provider column to anilist_series_links for future multi-provider support
+ALTER TABLE anilist_series_links ADD COLUMN provider TEXT NOT NULL DEFAULT 'anilist';
+-- Update the primary key to include provider
+ALTER TABLE anilist_series_links DROP CONSTRAINT anilist_series_links_pkey;
+ALTER TABLE anilist_series_links ADD PRIMARY KEY (library_id, series_name, provider);
diff --git a/infra/perf.sh b/infra/perf.sh
new file mode 100755
index 0000000..451b371
--- /dev/null
+++ b/infra/perf.sh
@@ -0,0 +1,383 @@
+#!/usr/bin/env bash
+# perf.sh — Performance benchmarks for Stripstream Librarian
+#
+# Measures:
+#   - Indexer: full rebuild phase durations (discovery / extracting_pages / generating_thumbnails)
+#   - Indexer: incremental rebuild speed (should skip unchanged dirs via mtime cache)
+#   - Indexer: thumbnail rebuild (generate missing) and regenerate (force all)
+#   - API:     page render latency (cold + warm/cached), thumbnail fetch, books list, search
+#
+# Usage:
+#   BASE_API=http://localhost:7080 API_TOKEN=my-token bash infra/perf.sh
+#
+# Optional env:
+#   JOB_TIMEOUT   seconds to wait for a job to complete (default 600)
+#   BENCH_N       number of API requests per endpoint for latency measurement (default 10)
+#   LIBRARY_ID    restrict rebuild jobs to a specific library UUID
+
+set -euo pipefail
+
+BASE_API="${BASE_API:-http://127.0.0.1:7080}"
+TOKEN="${API_TOKEN:-stripstream-dev-bootstrap-token}"
+JOB_TIMEOUT="${JOB_TIMEOUT:-600}"
+BENCH_N="${BENCH_N:-10}"
+LIBRARY_ID="${LIBRARY_ID:-}"
+export BASE_API TOKEN
+
+# ─── colours ────────────────────────────────────────────────────────────────
+
+BOLD="\033[1m"; RESET="\033[0m"; GREEN="\033[32m"; YELLOW="\033[33m"; CYAN="\033[36m"; RED="\033[31m"
+header()  { echo -e "\n${BOLD}${CYAN}▶ $*${RESET}"; }
+ok()      { echo -e "  ${GREEN}✓${RESET} $*"; }
+warn()    { echo -e "  ${YELLOW}⚠${RESET} $*"; }
+fail()    { echo -e "  ${RED}✗${RESET} $*"; }
+row()     { printf "  %-40s %s\n" "$1" "$2"; }
+
+# ─── helpers ────────────────────────────────────────────────────────────────
+
+auth() { curl -fsS -H "Authorization: Bearer $TOKEN" "$@"; }
+
+# Wait for job to finish; print a dot every 2s.
+wait_job() {
+  local job_id="$1" label="${2:-job}" waited=0 status
+  printf "  waiting for %s ." "$label"
+  while true; do
+    status="$(auth "$BASE_API/index/jobs/$job_id" \
+      | python3 -c "import sys,json; print(json.load(sys.stdin).get('status',''))")"
+    case "$status" in
+      success)   echo " done"; return 0 ;;
+      failed)    echo " FAILED"; fail "$label failed"; return 1 ;;
+      cancelled) echo " cancelled"; fail "$label was cancelled"; return 1 ;;
+    esac
+    if [ "$waited" -ge "$JOB_TIMEOUT" ]; then
+      echo " timeout"; fail "$label timed out after ${JOB_TIMEOUT}s (last: $status)"; return 1
+    fi
+    printf "."; sleep 2; waited=$((waited + 2))
+  done
+}
+
+# Fetch /index/jobs/:id/details and pretty-print phase durations + throughput.
+report_job() {
+  local job_id="$1" label="$2"
+  local details
+  details="$(auth "$BASE_API/index/jobs/$job_id")"
+  export PERF_DETAILS="$details" PERF_LABEL="$label"
+  python3 - <<'PY'
+import json, os
+from datetime import datetime, timezone
+
+def parse(s):
+    if not s: return None
+    # Handle both with and without microseconds
+    for fmt in ("%Y-%m-%dT%H:%M:%S.%fZ", "%Y-%m-%dT%H:%M:%SZ",
+                "%Y-%m-%dT%H:%M:%S.%f+00:00", "%Y-%m-%dT%H:%M:%S+00:00"):
+        try: return datetime.strptime(s, fmt).replace(tzinfo=timezone.utc)
+        except ValueError: pass
+    return None
+
+d = json.loads(os.environ["PERF_DETAILS"])
+label = os.environ["PERF_LABEL"]
+
+started   = parse(d.get("started_at"))
+phase2    = parse(d.get("phase2_started_at"))
+thumbs    = parse(d.get("generating_thumbnails_started_at"))
+finished  = parse(d.get("finished_at"))
+stats     = d.get("stats_json") or {}
+total_files = d.get("total_files") or 0
+
+def secs(a, b):
+    if a and b: return (b - a).total_seconds()
+    return None
+
+def fmt(s):
+    if s is None: return "n/a"
+    if s < 1: return f"{s*1000:.0f}ms"
+    return f"{s:.1f}s"
+
+def tps(n, s):
+    if n and s and s > 0: return f"{n/s:.1f}/s"
+    return "n/a"
+
+t_total    = secs(started, finished)
+t_discover = secs(started, phase2)
+t_extract  = secs(phase2, thumbs)
+t_thumbs   = secs(thumbs, finished)
+indexed    = stats.get("indexed_files", 0)
+
+print(f"  {'Total':38s} {fmt(t_total)}")
+if t_discover is not None:
+    print(f"  {'  Phase 1 – discovery':38s} {fmt(t_discover)}  ({tps(indexed, t_discover)} books indexed)")
+if t_extract is not None:
+    print(f"  {'  Phase 2A – extracting_pages':38s} {fmt(t_extract)}  ({tps(total_files, t_extract)} books/s)")
+if t_thumbs is not None:
+    print(f"  {'  Phase 2B – generating_thumbnails':38s} {fmt(t_thumbs)}  ({tps(total_files, t_thumbs)} thumbs/s)")
+print(f"  {'  Files indexed':38s} {indexed} / {total_files}")
+if stats.get("errors"):
+    print(f"  {'  Errors':38s} {stats['errors']}")
+PY
+}
+
+# Measure avg latency of a GET endpoint over N requests.
+measure_latency() {
+  local label="$1" url="$2" n="${3:-$BENCH_N}"
+  local total=0 i
+  for i in $(seq 1 "$n"); do
+    local t
+    t=$(curl -s -o /dev/null -w '%{time_total}' -H "Authorization: Bearer $TOKEN" "$url")
+    total=$(python3 -c "print($total + $t)")
+  done
+  local avg_ms
+  avg_ms=$(python3 -c "print(round(($total / $n)*1000, 1))")
+  row "$label" "${avg_ms}ms  (n=$n)"
+}
+
+# Build optional library_id JSON fragment
+lib_json() {
+  if [ -n "$LIBRARY_ID" ]; then echo "\"library_id\":\"$LIBRARY_ID\","; else echo ""; fi
+}
+
+enqueue_rebuild() {
+  local full="${1:-false}"
+  auth -X POST -H "Content-Type: application/json" \
+    -d "{$(lib_json)\"full\":$full}" \
+    "$BASE_API/index/rebuild" \
+    | python3 -c "import sys,json; print(json.load(sys.stdin)['id'])"
+}
+
+enqueue_thumb_rebuild() {
+  auth -X POST -H "Content-Type: application/json" \
+    -d "{$(lib_json | sed 's/,$//')}" \
+    "$BASE_API/index/thumbnails/rebuild" \
+    | python3 -c "import sys,json; print(json.load(sys.stdin)['id'])"
+}
+
+enqueue_thumb_regen() {
+  auth -X POST -H "Content-Type: application/json" \
+    -d "{$(lib_json | sed 's/,$//')}" \
+    "$BASE_API/index/thumbnails/regenerate" \
+    | python3 -c "import sys,json; print(json.load(sys.stdin)['id'])"
+}
+
+# ─── health check ────────────────────────────────────────────────────────────
+
+header "Health"
+curl -fsS "$BASE_API/health" >/dev/null && ok "API healthy"
+
+BOOKS_JSON="$(auth "$BASE_API/books")"
+BOOK_COUNT="$(echo "$BOOKS_JSON" | python3 -c "import sys,json; d=json.load(sys.stdin); print(d.get('total',0))")"
+FIRST_BOOK_ID="$(echo "$BOOKS_JSON" | python3 -c "import sys,json; items=json.load(sys.stdin).get('items',[]); print(items[0]['id'] if items else '')")"
+ok "Books in index: $BOOK_COUNT"
+if [ -n "$LIBRARY_ID" ]; then ok "Scoped to library: $LIBRARY_ID"; fi
+
+# ─── 1. full rebuild ─────────────────────────────────────────────────────────
+
+header "1 / Full Rebuild"
+JOB_FULL="$(enqueue_rebuild true)"
+ok "job $JOB_FULL"
+wait_job "$JOB_FULL" "full rebuild"
+report_job "$JOB_FULL" "full rebuild"
+
+# ─── 2. incremental rebuild (dirs unchanged → mtime skip) ───────────────────
+
+header "2 / Incremental Rebuild  (should be fast — mtime cache)"
+JOB_INCR="$(enqueue_rebuild false)"
+ok "job $JOB_INCR"
+wait_job "$JOB_INCR" "incremental rebuild"
+report_job "$JOB_INCR" "incremental rebuild"
+
+python3 - <<'PY'
+import json, os
+from datetime import datetime, timezone
+
+def parse(s):
+    if not s: return None
+    for fmt in ("%Y-%m-%dT%H:%M:%S.%fZ", "%Y-%m-%dT%H:%M:%SZ",
+                "%Y-%m-%dT%H:%M:%S.%f+00:00", "%Y-%m-%dT%H:%M:%S+00:00"):
+        try: return datetime.strptime(s, fmt).replace(tzinfo=timezone.utc)
+        except ValueError: pass
+    return None
+
+full_id = os.environ.get("PERF_FULL_ID", "")
+incr_id = os.environ.get("PERF_INCR_ID", "")
+if not full_id or not incr_id:
+    exit(0)
+PY
+# Speedup ratio via env export
+export PERF_FULL_ID="$JOB_FULL" PERF_INCR_ID="$JOB_INCR"
+python3 - <<'PY'
+import json, os, subprocess
+from datetime import datetime, timezone
+
+def parse(s):
+    if not s: return None
+    for fmt in ("%Y-%m-%dT%H:%M:%S.%fZ", "%Y-%m-%dT%H:%M:%SZ",
+                "%Y-%m-%dT%H:%M:%S.%f+00:00", "%Y-%m-%dT%H:%M:%S+00:00"):
+        try: return datetime.strptime(s, fmt).replace(tzinfo=timezone.utc)
+        except ValueError: pass
+    return None
+
+base  = os.environ.get("BASE_API", "http://127.0.0.1:7080")
+token = os.environ.get("TOKEN", "")
+
+import urllib.request
+
+def fetch(url):
+    req = urllib.request.Request(url, headers={"Authorization": f"Bearer {token}"})
+    with urllib.request.urlopen(req) as r:
+        return json.loads(r.read())
+
+def duration(job_id):
+    d = fetch(f"{base}/index/jobs/{job_id}")
+    s = parse(d.get("started_at"))
+    f = parse(d.get("finished_at"))
+    if s and f: return (f - s).total_seconds()
+    return None
+
+t_full = duration(os.environ["PERF_FULL_ID"])
+t_incr = duration(os.environ["PERF_INCR_ID"])
+
+if t_full and t_incr:
+    ratio = t_full / t_incr if t_incr > 0 else 0
+    print(f"  {'Speedup (full vs incremental)':38s} {ratio:.1f}x  ({t_full:.1f}s → {t_incr:.1f}s)")
+PY
+
+# ─── 3. thumbnail rebuild (generate missing) ─────────────────────────────────
+
+header "3 / Thumbnail Rebuild  (generate missing only)"
+JOB_TREB="$(enqueue_thumb_rebuild)"
+ok "job $JOB_TREB"
+wait_job "$JOB_TREB" "thumbnail rebuild"
+report_job "$JOB_TREB" "thumbnail rebuild"
+
+# ─── 4. thumbnail regenerate (force all) ─────────────────────────────────────
+
+header "4 / Thumbnail Regenerate  (force all)"
+JOB_TREG="$(enqueue_thumb_regen)"
+ok "job $JOB_TREG"
+wait_job "$JOB_TREG" "thumbnail regenerate"
+report_job "$JOB_TREG" "thumbnail regenerate"
+
+# ─── 5. API latency ──────────────────────────────────────────────────────────
+
+header "5 / API Latency  (n=$BENCH_N requests each)"
+
+measure_latency "books list" "$BASE_API/books"
+measure_latency "search (query)" "$BASE_API/search?q=marvel"
+
+if [ -n "$FIRST_BOOK_ID" ]; then
+  # Cold page render: clear cache between runs by using different params
+  measure_latency "page render  (width=1080, webp)" \
+    "$BASE_API/books/$FIRST_BOOK_ID/pages/1?format=webp&quality=80&width=1080"
+
+  # Warm render: same URL repeated → should hit LRU cache
+  measure_latency "page render  (warm/cached)" \
+    "$BASE_API/books/$FIRST_BOOK_ID/pages/1?format=webp&quality=80&width=1080"
+
+  measure_latency "thumbnail fetch" \
+    "$BASE_API/books/$FIRST_BOOK_ID/thumbnail"
+else
+  warn "No books found — skipping page/thumbnail latency tests"
+fi
+
+# ─── 6. Page render deep-dive ────────────────────────────────────────────────
+#
+#  Tests what the refactoring touches: archive reading for each format.
+#  Uses width-cycling to bypass disk cache and measure real decode cost.
+#  Tests: per-format cold render, sequential pages, concurrent throughput.
+
+header "6 / Page Render Deep-Dive"
+
+if [ -z "$FIRST_BOOK_ID" ]; then
+  warn "No books found — skipping deep-dive"
+else
+
+  # Resolve one book per format (API may not support ?format= filter; graceful fallback)
+  resolve_book_by_format() {
+    local fmt="$1"
+    local id
+    id=$(auth "$BASE_API/books?format=$fmt&limit=1" 2>/dev/null \
+      | python3 -c "import sys,json; items=json.load(sys.stdin).get('items',[]); print(items[0]['id'] if items else '')" 2>/dev/null || echo "")
+    echo "$id"
+  }
+  BOOK_CBZ=$(resolve_book_by_format cbz)
+  BOOK_CBR=$(resolve_book_by_format cbr)
+  BOOK_PDF=$(resolve_book_by_format pdf)
+
+  # Cold render: cycle widths (480..487) across N requests so each misses disk cache
+  measure_latency_cold() {
+    local label="$1" book_id="$2" n="${3:-$BENCH_N}"
+    local total=0 i
+    for i in $(seq 1 "$n"); do
+      local w=$((480 + i))    # unique width → unique cache key
+      local t
+      t=$(curl -s -o /dev/null -w '%{time_total}' \
+        -H "Authorization: Bearer $TOKEN" \
+        "$BASE_API/books/$book_id/pages/1?format=webp&quality=80&width=$w")
+      total=$(python3 -c "print($total + $t)")
+    done
+    local avg_ms
+    avg_ms=$(python3 -c "print(round(($total / $n)*1000, 1))")
+    row "$label" "${avg_ms}ms  (cold, n=$n)"
+  }
+
+  echo ""
+  echo "  Cold render latency by format  (cache-busted widths):"
+  [ -n "$BOOK_CBZ" ] && measure_latency_cold "CBZ page 1  (cold)" "$BOOK_CBZ" \
+    || warn "No CBZ book found"
+  [ -n "$BOOK_CBR" ] && measure_latency_cold "CBR page 1  (cold)" "$BOOK_CBR" \
+    || warn "No CBR book found"
+  [ -n "$BOOK_PDF" ] && measure_latency_cold "PDF page 1  (cold)" "$BOOK_PDF" \
+    || warn "No PDF book found"
+
+  # Warm render: same URL repeated → LRU / disk cache
+  echo ""
+  echo "  Warm render (disk cache, same URL):"
+  # One cold request first, then N warm
+  curl -s -o /dev/null -H "Authorization: Bearer $TOKEN" \
+    "$BASE_API/books/$FIRST_BOOK_ID/pages/1?format=webp&quality=80&width=600" >/dev/null
+  measure_latency "page render (warm/disk-cached)" \
+    "$BASE_API/books/$FIRST_BOOK_ID/pages/1?format=webp&quality=80&width=600"
+
+  # Sequential pages: measures archive open+close overhead across consecutive pages
+  echo ""
+  echo "  Sequential pages (pages 1–10, same book, cold widths):"
+  SEQ_TOTAL=0
+  for PAGE in $(seq 1 10); do
+    local_t=$(curl -s -o /dev/null -w '%{time_total}' \
+      -H "Authorization: Bearer $TOKEN" \
+      "$BASE_API/books/$FIRST_BOOK_ID/pages/$PAGE?format=webp&quality=80&width=$((500 + PAGE))")
+    local_ms=$(python3 -c "print(round($local_t*1000, 1))")
+    SEQ_TOTAL=$(python3 -c "print($SEQ_TOTAL + $local_t)")
+    row "  page $PAGE" "${local_ms}ms"
+  done
+  SEQ_AVG=$(python3 -c "print(round($SEQ_TOTAL / 10 * 1000, 1))")
+  row "  avg (10 pages)" "${SEQ_AVG}ms"
+
+  # Concurrent throughput: N requests in parallel → measures semaphore + CPU saturation
+  CONC_N="${CONC_N:-10}"
+  echo ""
+  echo "  Concurrent rendering ($CONC_N simultaneous requests, cold widths):"
+  CONC_START=$(date +%s%3N)
+  PIDS=()
+  for i in $(seq 1 "$CONC_N"); do
+    curl -s -o /dev/null \
+      -H "Authorization: Bearer $TOKEN" \
+      "$BASE_API/books/$FIRST_BOOK_ID/pages/$i?format=webp&quality=80&width=$((550 + i))" &
+    PIDS+=($!)
+  done
+  for PID in "${PIDS[@]}"; do wait "$PID" 2>/dev/null || true; done
+  CONC_END=$(date +%s%3N)
+  CONC_MS=$((CONC_END - CONC_START))
+  CONC_PER=$(python3 -c "print(round($CONC_MS / $CONC_N, 1))")
+  row "  wall time (${CONC_N} pages in parallel)" "${CONC_MS}ms  (~${CONC_PER}ms/page)"
+
+fi
+
+# ─── summary ─────────────────────────────────────────────────────────────────
+
+header "Summary"
+ok "Full rebuild job:          $JOB_FULL"
+ok "Incremental rebuild job:   $JOB_INCR"
+ok "Thumbnail rebuild job:     $JOB_TREB"
+ok "Thumbnail regenerate job:  $JOB_TREG"
+echo -e "\n${BOLD}perf done${RESET}"