diff --git a/scripts/start.sh b/scripts/start.sh
index 1726aac82..45aabf09d 100644
--- a/scripts/start.sh
+++ b/scripts/start.sh
@@ -55,6 +55,24 @@ isBoolean() {
     [ "${bool,,}" = true ] || [ "${bool,,}" = false ]
 }
 
+# Future use
+isUint() {
+    local bool="$1"
+    [[ "${bool}" =~ ^[0-9]+$ ]]
+}
+
+# Future use
+isNetworkPort() {
+    local bool="$1"
+    isUint "${bool}" && [ "${bool}" -ge 0 ] && [ "${bool}" -le 65535 ]
+}
+
+# Future use
+isUFloat() {
+    local bool="$1"
+    [[ "${bool}" =~ ^[0-9]+([.][0-9]+)?$ ]]
+}
+
 dirExists "/palworld" || exit
 isWritable "/palworld" || exit
 isExecutable "/palworld" || exit