diff --git a/entrypoint.sh b/entrypoint.sh
index 3ca98fa54..3cdc74dbe 100644
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -1,70 +1,101 @@
 #!/bin/bash
-set -euo pipefail
+set -Eeuo pipefail
+
+# Timestamped xtrace (enable by uncommenting: set -x)
+export PS4='+ [${EPOCHREALTIME}] ${BASH_SOURCE##*/}:${LINENO}: '
+# set -x
+
+log() { printf '[entrypoint] %s\n' "$*" >&2; }
 
 APP_USER=${APP_USER:-appuser}
 APP_GROUP=${APP_GROUP:-appuser}
 PUID=${PUID:-1000}
 PGID=${PGID:-1000}
-
 BASE_DIR=/app/ComfyUI
 CUSTOM_NODES_DIR="$BASE_DIR/custom_nodes"
 
-# If running as root, map to requested UID/GID, fix ownership, and make Python install targets writable
 if [ "$(id -u)" = "0" ]; then
+  log "Running as root; mapping to UID=${PUID} GID=${PGID} and fixing ownerships" 
   # Map group to PGID if it already exists, otherwise remap the named group
   if getent group "${PGID}" >/dev/null; then
     EXISTING_GRP="$(getent group "${PGID}" | cut -d: -f1)"
+    log "Using existing group ${EXISTING_GRP} for GID ${PGID}"
     usermod -g "${EXISTING_GRP}" "${APP_USER}" || true
     APP_GROUP="${EXISTING_GRP}"
   else
+    log "Remapping group ${APP_GROUP} to GID ${PGID}"
     groupmod -o -g "${PGID}" "${APP_GROUP}" || true
   fi
 
   # Map user to PUID
+  log "Remapping user ${APP_USER} to UID ${PUID}"
   usermod -o -u "${PUID}" "${APP_USER}" || true
 
   # Ensure home and app dir exist and are owned
   mkdir -p "/home/${APP_USER}"
   for d in "$BASE_DIR" "/home/$APP_USER"; do
-    [ -e "$d" ] && chown -R "${APP_USER}:${APP_GROUP}" "$d" || true
+    if [ -e "$d" ]; then
+      log "Ensuring ownership ${APP_USER}:${APP_GROUP} on ${d}"
+      chown -R "${APP_USER}:${APP_GROUP}" "$d" || true
+    fi
   done
 
-  # Make Python system install targets writable for the runtime user
+  # Discover Python system install targets and make them writable for runtime user
   # Includes: site-packages (purelib/platlib), scripts, headers, data, and data/share(+man1)
   # Discards anything not under /usr/local to avoid over-broad changes.
-  readarray -t PY_PATHS < <(python - <<'PY'
-import sysconfig, os
-keys = ("purelib","platlib","scripts","include","platinclude","data")
+  log "Discovering Python install paths via sysconfig (unbuffered Python logging enabled)"
+  readarray -t PY_PATHS < <(
+    env PYTHONUNBUFFERED=1 python - <<'PY'
+import sys, os, sysconfig
+
+def emit(label, path):
+    if not path:
+        return
+    # stdout: raw path for readarray
+    print(path)
+    # stderr: labeled diagnostics for logs
+    print(f"[py] {label}: {path}", file=sys.stderr, flush=True)
+
 p = sysconfig.get_paths()
-for k in keys:
-    v = p.get(k)
-    if v:
-        print(v)
+for k in ("purelib","platlib","scripts","include","platinclude","data"):
+    emit(k, p.get(k))
+
 d = p.get("data")
 if d:
     # Wheel .data/data payloads commonly land under {data}/share, including manpages like ttx.1
-    print(os.path.join(d, "share"))
-    print(os.path.join(d, "share", "man", "man1"))
+    emit("share", os.path.join(d, "share"))
+    emit("man1", os.path.join(d, "share", "man", "man1"))
 PY
-)
+  )
+
+  log "Found ${#PY_PATHS[@]} Python target paths:"
+  for p in "${PY_PATHS[@]}"; do
+    printf '  - %s\n' "$p" >&2
+  done
+
   for d in "${PY_PATHS[@]}"; do
     case "$d" in
       /usr/local/*)
+        log "Ensuring writable under /usr/local: ${d}"
         mkdir -p "$d" || true
         chown -R "${APP_USER}:${APP_GROUP}" "$d" || true
         chmod -R u+rwX,g+rwX "$d" || true
         ;;
-      *) : ;;
+      *)
+        log "Skipping non-/usr/local path: ${d}"
+        ;;
     esac
   done
 
-  # Re-exec as the runtime user
+  log "Re-exec as runtime user ${APP_USER} (UID=${PUID}, GID=${PGID})"
   exec runuser -u "${APP_USER}" -- "$0" "$@"
 fi
 
+log "Running as $(id -un) (UID=$(id -u))"
+
 # Ensure ComfyUI-Manager exists (bind mounts can hide baked content)
 if [ ! -d "$CUSTOM_NODES_DIR/ComfyUI-Manager" ]; then
-  echo "[bootstrap] Installing ComfyUI-Manager into $CUSTOM_NODES_DIR/ComfyUI-Manager"
+  log "Installing ComfyUI-Manager into $CUSTOM_NODES_DIR/ComfyUI-Manager"
   git clone --depth 1 https://github.com/ltdrdata/ComfyUI-Manager.git "$CUSTOM_NODES_DIR/ComfyUI-Manager" || true
 fi
 
@@ -75,18 +106,19 @@ export PYTHONPATH="$HOME/.local/lib/python${pyver}/site-packages:${PYTHONPATH:-}
 
 # Auto-install custom node deps
 if [ "${COMFY_AUTO_INSTALL:-1}" = "1" ]; then
-  echo "[deps] Scanning custom nodes for requirements..."
+  log "[deps] Scanning custom nodes for requirements..."
   while IFS= read -r -d '' req; do
-    echo "[deps] pip install --user -r $req"
+    log "[deps] pip install --user -r $req"
     pip install --no-cache-dir --user -r "$req" || true
   done < <(find "$CUSTOM_NODES_DIR" -maxdepth 3 -type f \( -iname 'requirements.txt' -o -iname 'requirements-*.txt' -o -path '*/requirements/*.txt' \) -print0)
 
   while IFS= read -r -d '' pjt; do
     d="$(dirname "$pjt")"
-    echo "[deps] pip install --user . in $d"
+    log "[deps] pip install --user . in $d"
     (cd "$d" && pip install --no-cache-dir --user .) || true
   done < <(find "$CUSTOM_NODES_DIR" -maxdepth 2 -type f -iname 'pyproject.toml' -print0)
 
+  log "[deps] pip check (sanity)"
   pip check || true
 fi