diff --git a/.env.example b/.env.example
old mode 100644
new mode 100755
diff --git a/.gitignore b/.gitignore
old mode 100644
new mode 100755
diff --git a/PROJECT.md b/PROJECT.md
old mode 100644
new mode 100755
diff --git a/README.md b/README.md
old mode 100644
new mode 100755
diff --git a/install_nfqws.sh b/install_nfqws.sh
index 39d398e..2c27ca6 100755
--- a/install_nfqws.sh
+++ b/install_nfqws.sh
@@ -114,21 +114,36 @@ if [ ! -f "$BUILD_DIR/zapret/nfq/nfqws" ]; then
 fi
 
 # Verify the binary actually runs (catch segfaults early)
-if ! "$BUILD_DIR/zapret/nfq/nfqws" --help >/dev/null 2>&1; then
-    echo "[!] nfqws segfaults with current flags. Rebuilding without strip..."
+if ! "$BUILD_DIR/zapret/nfq/nfqws" --help > /dev/null 2>&1; then
+    echo "[!] nfqws segfaults with current flags. Rebuilding with -O0 (no optimizations)..."
+    sed -i 's/-Os/-O0/g' nfq/Makefile 2>/dev/null || true
     sed -E -i 's/(^| )-s($| )/\1\2/g' nfq/Makefile 2>/dev/null || true
     make -C nfq clean && make -C nfq
     if [ ! -f "$BUILD_DIR/zapret/nfq/nfqws" ]; then
         echo "[!] nfqws binary not found after rebuild"
         exit 1
     fi
-    if ! "$BUILD_DIR/zapret/nfq/nfqws" --help >/dev/null 2>&1; then
-        echo "[!] nfqws still segfaults. Aborting."
-        exit 1
+    if ! "$BUILD_DIR/zapret/nfq/nfqws" --help > /dev/null 2>&1; then
+        echo "[!] nfqws still segfaults with -O0. Last attempt: disable LTO + gc-sections..."
+        make -C nfq clean && CC=gcc CFLAGS="-std=gnu99 -O0 -g" LDFLAGS="" LIBS_LINUX="-lz -lnetfilter_queue -lnfnetlink -lmnl" make -C nfq
+        if [ ! -f "$BUILD_DIR/zapret/nfq/nfqws" ]; then
+            echo "[!] nfqws binary not found after rebuild"
+            exit 1
+        fi
+        if ! "$BUILD_DIR/zapret/nfq/nfqws" --help > /dev/null 2>&1; then
+            echo "[!] nfqws still segfaults. Aborting."
+            exit 1
+        fi
     fi
 fi
 
 mkdir -p "$BIN_DIR"
+
+# Fix: if previous runs created bin/nfqws as a directory, remove it
+if [[ -d "$BIN_DIR/nfqws" ]]; then
+    rm -rf "$BIN_DIR/nfqws"
+fi
+
 cp "$BUILD_DIR/zapret/nfq/nfqws" "$BIN_DIR/"
 chmod +x "$BIN_DIR/nfqws"
 
diff --git a/lib/functions.sh b/lib/functions.sh
index d2e37aa..08a4ba2 100755
--- a/lib/functions.sh
+++ b/lib/functions.sh
@@ -112,8 +112,9 @@ describe_strategy() {
     esac
 }
 
+# Verify the binary actually runs (catches segfaults/missing deps)
 check_nfqws() {
-    if [[ ! -x "$BIN_DIR/nfqws" ]]; then
+    if [[ ! -f "$BIN_DIR/nfqws" ]] || [[ ! -x "$BIN_DIR/nfqws" ]]; then
         echo ""
         print_red "ERROR: nfqws binary not found!"
         echo ""
@@ -122,8 +123,9 @@ check_nfqws() {
         echo ""
         return 1
     fi
-    # Verify the binary actually runs (catches segfaults/missing deps)
-    if ! "$BIN_DIR/nfqws" --help >/dev/null 2>&1; then
+    # Verify the binary actually runs (catches segfaults/missing deps).
+    # Use --version because --help exits with code 1 in zapret.
+    if ! "$BIN_DIR/nfqws" --version >/dev/null 2>&1; then
         echo ""
         print_red "ERROR: nfqws binary exists but does not run (segfault? missing deps?)"
         echo ""
diff --git a/lists/ipset-exclude.txt b/lists/ipset-exclude.txt
old mode 100644
new mode 100755
index 805f6a9..7e05757
--- a/lists/ipset-exclude.txt
+++ b/lists/ipset-exclude.txt
@@ -8,4 +8,4 @@
 100.64.0.0/10
 ::1
 fc00::/7
-fe80::/10
+fe80::/10
\ No newline at end of file
diff --git a/lists/list-google.txt b/lists/list-google.txt
old mode 100644
new mode 100755