diff --git a/scripts/start-web.sh b/scripts/start-web.sh
index 8ea5cba..018d755 100644
--- a/scripts/start-web.sh
+++ b/scripts/start-web.sh
@@ -9,12 +9,29 @@ cd /app
 export BUN_INSTALL_CACHE_DIR="${BUN_INSTALL_CACHE_DIR:-/tmp/bun-cache}"
 mkdir -p "$BUN_INSTALL_CACHE_DIR"
 
+DB_PATH="/app/data/db.sqlite"
+
 echo "[start-web] Using bun cache dir: $BUN_INSTALL_CACHE_DIR"
 
 echo "[start-web] Using APP_DIR=$(pwd)"
 echo "[start-web] NEXT_PUBLIC_APP_URL=${NEXT_PUBLIC_APP_URL:-}"
 echo "[start-web] NEXT_PUBLIC_CONVEX_URL=${NEXT_PUBLIC_CONVEX_URL:-}"
 
+ensure_db_writable() {
+  mkdir -p "$(dirname "$DB_PATH")"
+  if [ ! -e "$DB_PATH" ]; then
+    touch "$DB_PATH" || true
+    chmod 660 "$DB_PATH" 2>/dev/null || true
+  fi
+  if ! touch "$DB_PATH" >/dev/null 2>&1; then
+    echo "[start-web] ERRO: não foi possível escrever em $DB_PATH (verifique permissões do volume /app/data)" >&2
+    ls -ld /app/data "$DB_PATH" >/dev/null 2>&1 || true
+    exit 1
+  fi
+}
+
+ensure_db_writable
+
 # Ensure system deps for native modules (best-effort, idempotent)
 if command -v apt-get >/dev/null 2>&1; then
   if [ "${SKIP_APT_BOOTSTRAP:-false}" = "true" ]; then
@@ -61,12 +78,63 @@ fi
 
 # Rebuild native better-sqlite3 bindings for the current Node version
 if command -v npm >/dev/null 2>&1; then
+  check_better_sqlite3() {
+    node - <<'EOF'
+const path = require("node:path")
+try {
+  const pkgPath = require.resolve("better-sqlite3/package.json")
+  const pkg = require(pkgPath)
+  const binding = path.join(path.dirname(pkgPath), "build", "Release", "better_sqlite3.node")
+  require("better-sqlite3")
+  console.log(`[start-web] better-sqlite3 ok (v${pkg.version}) binding=${binding}`)
+  process.exit(0)
+} catch (error) {
+  console.error("[start-web] better-sqlite3 load failed:", error?.message || error)
+  process.exit(1)
+}
+EOF
+  }
+
+  rebuild_and_repin_sqlite() {
+    echo "[start-web] rebuilding better-sqlite3 para a runtime atual"
+    npm rebuild better-sqlite3 --build-from-source >/dev/null 2>&1 || {
+      echo "[start-web] rebuild falhou; continuando com bindings existentes" >&2
+    }
+    node - <<'EOF'
+const fs = require("node:fs")
+const path = require("node:path")
+try {
+  const pkgPath = require.resolve("better-sqlite3/package.json")
+  const pkgDir = path.dirname(pkgPath)
+  const pkg = require(pkgPath)
+  const built = path.join(pkgDir, "build", "Release", "better_sqlite3.node")
+  const store = path.join(process.cwd(), "node_modules", ".bun", `better-sqlite3@${pkg.version}`, "node_modules", "better-sqlite3", "build", "Release", "better_sqlite3.node")
+  fs.mkdirSync(path.dirname(store), { recursive: true })
+  fs.copyFileSync(built, store)
+  console.log(`[start-web] better-sqlite3 (v${pkg.version}) copiado para store bun: ${store}`)
+} catch (error) {
+  console.error("[start-web] não foi possível copiar binding para .bun store:", error?.message || error)
+}
+EOF
+  }
+
   if [ "${SKIP_SQLITE_REBUILD:-false}" = "true" ]; then
-    echo "[start-web] skipping better-sqlite3 rebuild (SKIP_SQLITE_REBUILD=true)"
-  else
-    echo "[start-web] rebuilding better-sqlite3 for current Node runtime"
-    (npm rebuild better-sqlite3 >/dev/null 2>&1 && echo "[start-web] better-sqlite3 rebuilt") || echo "[start-web] rebuild skipped (using existing bindings)"
-  fi
+    echo "[start-web] SKIP_SQLITE_REBUILD=true; tentando usar bindings existentes"
+    if ! check_better_sqlite3; then
+      echo "[start-web] bindings inválidos; forçando rebuild mesmo com SKIP_SQLITE_REBUILD=true"
+      rebuild_and_repin_sqlite
+      check_better_sqlite3 || {
+        echo "[start-web] ERRO: better-sqlite3 continua inválido após rebuild" >&2
+        exit 1
+      }
+    fi
+  } else {
+    rebuild_and_repin_sqlite
+    check_better_sqlite3 || {
+      echo "[start-web] ERRO: better-sqlite3 inválido após rebuild" >&2
+      exit 1
+    }
+  }
 fi
 
 # Bun keeps its store in node_modules/.bun by default; ensure it exists and is writable