diff --git a/sdtimeout.sh b/sdtimeout.sh
new file mode 100755
index 0000000..ec92c87
--- /dev/null
+++ b/sdtimeout.sh
@@ -0,0 +1,153 @@
+#!/bin/bash
+
+# sdtimeout.sh - Interactively set systemd stop job timeout
+
+SYSTEM_CONF="/etc/systemd/system.conf"
+USER_CONF="/etc/systemd/user.conf"
+SETTING="DefaultTimeoutStopSec"
+
+# Colors
+LRED="\033[1;31m"
+LGREEN="\033[1;32m"
+YELLOW="\033[1;33m"
+LCYAN="\033[1;36m"
+BWHITE="\e[1m"
+NC='\033[0m'
+
+
+prompt_seconds() {
+    local label="$1"
+    local result_var="$2"
+    local val
+
+    while true; do
+        echo -e -n "\n${YELLOW}${label}${NC}"
+        read val
+
+        if [ -z "${val}" ]; then
+            echo -e "${LRED}Please enter a value.${NC}"
+            continue
+        fi
+
+        if [[ ! "${val}" =~ ^[0-9]+$ ]]; then
+            echo -e "${LRED}'${val}' is not a valid number of seconds.${NC}"
+            continue
+        fi
+
+        if [ "${val}" -lt 1 ]; then
+            echo -e "${LRED}Value must be at least 1 second.${NC}"
+            continue
+        fi
+
+        eval "${result_var}=${val}"
+        break
+    done
+}
+
+
+set_timeout_in_file() {
+    local file="$1"
+    local seconds="$2"
+    local new_line="${SETTING}=${seconds}s"
+
+    if grep -qE "^#?[[:space:]]*${SETTING}=" "${file}" 2>/dev/null; then
+        sudo sed -i "s|^#\?[[:space:]]*${SETTING}=.*|${new_line}|" "${file}"
+    else
+        echo -e "\n[Manager]" | sudo tee -a "${file}" > /dev/null
+        echo "${new_line}" | sudo tee -a "${file}" > /dev/null
+    fi
+}
+
+
+verify_file() {
+    local file="$1"
+    local seconds="$2"
+
+    local match
+    match=$(grep -E "^${SETTING}=${seconds}s" "${file}" 2>/dev/null)
+
+    if [ -z "${match}" ]; then
+        echo -e "${LRED}Verification failed: '${SETTING}=${seconds}s' not found in ${file}${NC}"
+        return 1
+    fi
+    return 0
+}
+
+
+show_snippet() {
+    local file="$1"
+    local seconds="$2"
+
+    echo -e "\n${LCYAN}--- ${file} (context around change) ---${NC}"
+    grep -n -E "${SETTING}" "${file}"
+}
+
+
+# --- Main ---
+
+echo -e "\n${BWHITE}systemd Stop Job Timeout Configurator${NC}"
+echo -e "${LCYAN}--------------------------------------${NC}"
+echo -e "This script sets ${BWHITE}${SETTING}${NC} in:"
+echo -e "  ${SYSTEM_CONF}"
+echo -e "  ${USER_CONF}\n"
+
+prompt_seconds "System-wide stop job timeout in seconds (e.g. 90): " system_secs
+prompt_seconds "User-scope stop job timeout in seconds (e.g. 90): " user_secs
+
+echo -e "\n${YELLOW}System timeout will be set to: ${LGREEN}${system_secs}s${NC}"
+echo -e "${YELLOW}User timeout will be set to:   ${LGREEN}${user_secs}s${NC}"
+echo -e "\n${YELLOW}Your password is required to edit systemd config files.${NC}"
+echo -e "${YELLOW}Press Enter to continue or Ctrl+C to cancel.${NC}"
+read
+
+# Verify sudo works before proceeding
+sudo -v
+if [ $? -ne 0 ]; then
+    echo -e "\n${LRED}Authentication failed. Exiting.${NC}\n"
+    exit 1
+fi
+
+echo -e "\n${LCYAN}Applying changes...${NC}"
+
+set_timeout_in_file "${SYSTEM_CONF}" "${system_secs}"
+set_timeout_in_file "${USER_CONF}" "${user_secs}"
+
+echo -e "\n${LCYAN}Verifying changes...${NC}"
+
+errors=0
+
+verify_file "${SYSTEM_CONF}" "${system_secs}"
+[ $? -ne 0 ] && errors=$((errors + 1))
+
+verify_file "${USER_CONF}" "${user_secs}"
+[ $? -ne 0 ] && errors=$((errors + 1))
+
+echo -e "\n${LCYAN}Checking systemd can parse the config...${NC}"
+systemd-analyze cat-config systemd/system.conf > /dev/null 2>&1
+if [ $? -ne 0 ]; then
+    echo -e "${LRED}systemd-analyze reported an issue reading system.conf — please inspect manually.${NC}"
+    errors=$((errors + 1))
+else
+    echo -e "${LGREEN}system.conf parsed OK by systemd.${NC}"
+fi
+
+systemd-analyze cat-config systemd/user.conf > /dev/null 2>&1
+if [ $? -ne 0 ]; then
+    echo -e "${LRED}systemd-analyze reported an issue reading user.conf — please inspect manually.${NC}"
+    errors=$((errors + 1))
+else
+    echo -e "${LGREEN}user.conf parsed OK by systemd.${NC}"
+fi
+
+if [ "${errors}" -gt 0 ]; then
+    echo -e "\n${LRED}One or more changes could not be verified. Please check the files manually.${NC}\n"
+    exit 1
+fi
+
+echo -e "\n${LGREEN}All changes applied and verified successfully!${NC}"
+
+show_snippet "${SYSTEM_CONF}" "${system_secs}"
+show_snippet "${USER_CONF}" "${user_secs}"
+
+echo -e "\n${LCYAN}Changes will take effect after the next reboot or:${NC}"
+echo -e "  ${BWHITE}sudo systemctl daemon-reexec${NC}\n"