diff --git a/setup_build_server.sh b/setup_build_server.sh
index c10fc1a..1884242 100755
--- a/setup_build_server.sh
+++ b/setup_build_server.sh
@@ -121,25 +121,47 @@ nginx -t
 systemctl restart nginx
 
 # -----------------------------
-# Gitea Runner installieren
+# Gitea Act Runner installieren
 # -----------------------------
-echo "==> Install Gitea Runner"
-RUNNER_DIR="/opt/gitea-runner"
-mkdir -p $RUNNER_DIR
-cd $RUNNER_DIR
+echo "==> Install Gitea Act Runner"
+RUNNER_DIR="/opt/gitea-act-runner"
+mkdir -p "$RUNNER_DIR"
+cd "$RUNNER_DIR"
 
-# Download aktueller gitea-runner (Linux x64)
-GITEA_RUNNER_BIN="actions-runner-linux-x64-2.305.0.tar.gz"
-wget -O $GITEA_RUNNER_BIN "https://dl.gitea.io/gitea/runner/latest/actions-runner-linux-x64.tar.gz"
-tar xzf $GITEA_RUNNER_BIN
-rm $GITEA_RUNNER_BIN
+# Binary herunterladen
+GITEA_RUNNER_BIN="act_runner-0.2.13-linux-amd64"
+wget -O $GITEA_RUNNER_BIN "https://gitea.com/gitea/act_runner/releases/download/v0.2.13/act_runner-0.2.13-linux-amd64"
+chmod +x $GITEA_RUNNER_BIN
+mv $GITEA_RUNNER_BIN act_runner
 
-# Runner konfigurieren
-./config.sh --url "https://gitea.malmert.de/marcus/mitm-webserver" --token $RUNNER_TOKEN --name $RUNNER_NAME --unattended --replace
+# Runner registrieren
+./act_runner register --instance "https://gitea.malmert.de/" --token "$RUNNER_TOKEN" --name "$RUNNER_NAME" --no-interactive
 
-# Systemd Service für Runner
-./svc.sh install
-./svc.sh start
+# Konfigurationsdatei generieren (optional)
+./act_runner generate-config > config.yaml
+
+# Systemd-Service einrichten
+cat >/etc/systemd/system/gitea-act-runner.service <<EOL
+[Unit]
+Description=Gitea Actions Runner (act_runner)
+After=network.target
+
+[Service]
+ExecStart=$RUNNER_DIR/act_runner daemon --config $RUNNER_DIR/config.yaml
+WorkingDirectory=$RUNNER_DIR
+Restart=always
+User=root
+# Du kannst auch einen dedizierten "act_runner"-User erstellen, falls du nicht als root laufen willst.
+
+[Install]
+WantedBy=multi-user.target
+EOL
+
+systemctl daemon-reload
+systemctl enable gitea-act-runner
+systemctl start gitea-act-runner
+
+echo "==> Gitea Act Runner installiert & gestartet"
 
 # -----------------------------
 # Gitea Runner Job Script