diff --git a/README.md b/README.md
index b25c771..9a8673f 100644
--- a/README.md
+++ b/README.md
@@ -54,9 +54,15 @@
 
   <img src="projectInfo/replitNix.png" width="250">
 
-- Follow the instructions below to set the Java version you want for your server:
-  - If you want your server version to be Minecraft 1.16.x or below, do not change anything.
-  - If you want your server version to be Minecraft 1.17.x or above, make sure to change `pkgs.openjdk8-bootstrap` to `pkgs.openjdk17-bootstrap`
+- Choose the Java version you want to use from below and replace the default Java version with the one you want to use:
+
+  > _The default Java version is `pkgs.openjdk8-bootstrap`_
+
+  | Minecraft Version | Java Version               |
+  | ----------------- | -------------------------- |
+  | `1.21+`           | `pkgs.jdk21_headless`      |
+  | `1.17 - 1.20`     | `pkgs.openjdk17-bootstrap` |
+  | `1.16-`           | `pkgs.openjdk8-bootstrap`  |
 
 ## Creating Enviornment Variables
 
@@ -68,30 +74,17 @@
 
   <img src="projectInfo/replitSecrets.png" width="550">
 
-- Create a new secret called `ngrok_region` and input one of the regional codes from the list below as the value:
-
-  > _Choose the closest region for better network connectivity._
-
-  | Region                    | Code |
-  | ------------------------- | ---- |
-  | United States (Ohio)      | `us` |
-  | Europe (Frankfurt)        | `eu` |
-  | Asia/Pacific (Singapore)  | `ap` |
-  | Australia (Sydney)        | `au` |
-  | South America (Sao Paulo) | `sa` |
-  | Japan (Tokyo)             | `jp` |
-  | India (Mumbai)            | `in` |
+- Create a new secret with the key named `ngrok_token` and the value as your [authtoken](https://dashboard.ngrok.com/get-started/your-authtoken)
 
-  <img src="projectInfo/ngrokRegion.png" width="450">
+  > _Note: You need to create an ngrok account to get an authtoken_
 
 - Do the same for the variables in the list below:
 
-  | Key           | Value                                                                                                                              |
-  | ------------- | ---------------------------------------------------------------------------------------------------------------------------------- |
-  | `ngrok_token` | Your [authtoken](https://dashboard.ngrok.com/get-started/your-authtoken) for ngrok. _You need to create an ngrok account for this_ |
-  | `SERVER`      | The server software in all lowercase. e.g `purpur`                                                                                 |
-  | `VERSION`     | Version of Minecraft your server is running on. e.g `1.19.4`                                                                       |
-  | `BUILD`       | The build number of your server software. _Only use this if you have `paper` as the server software_                               |
+  | Key       | Value                                                                                                |
+  | --------- | ---------------------------------------------------------------------------------------------------- |
+  | `SERVER`  | The server software in all lowercase. e.g `purpur`                                                   |
+  | `VERSION` | Version of Minecraft your server is running on. e.g `1.19.4`                                         |
+  | `BUILD`   | The build number of your server software. _Only use this if you have `paper` as the server software_ |
 
 - List of server software supported:
 
diff --git a/projectInfo/ngrokRegion.png b/projectInfo/ngrokRegion.png
deleted file mode 100644
index f63549e..0000000
Binary files a/projectInfo/ngrokRegion.png and /dev/null differ
diff --git a/start.sh b/start.sh
index 665f132..186c090 100644
--- a/start.sh
+++ b/start.sh
@@ -103,23 +103,27 @@ while true; do
     requireFile "server.jar"
     requireExec "ngrok"
     requireEnv "ngrok_token"
-    requireEnv "ngrok_region"
     mkdir -p ./logs
     touch ./logs/temp
     rm ./logs/*
-    echo -e "${GREEN}Starting ngrok tunnel in region: $ngrok_region"
-    ./ngrok authtoken $ngrok_token >/dev/null 2>&1
-    ./ngrok tcp -region $ngrok_region --log=stdout 25565 >$root/status.log &
+    if ! pgrep -x "ngrok" >/dev/null; then
+        echo -e "${GREEN}Starting ngrok tunnel...${NC}"
+        ./ngrok authtoken $ngrok_token >/dev/null 2>&1
+        ./ngrok tcp --log=stdout 25565 >$root/status.log &
+    fi
     echo ""
     echo -e "${CYAN}Minecraft server starting, please wait...${NC}"
     echo ""
     echo -e "${GREEN}=====================================================================${NC}"
     echo ""
     COMMON_JVM_FLAGS="-Xms128M -Xmx512M -XX:+UseG1GC -XX:+ParallelRefProcEnabled -XX:MaxGCPauseMillis=200 -XX:+UnlockExperimentalVMOptions -XX:+UnlockDiagnosticVMOptions -XX:+DisableExplicitGC -XX:+AlwaysPreTouch -XX:G1NewSizePercent=30 -XX:G1MaxNewSizePercent=40 -XX:G1HeapRegionSize=8M -XX:G1ReservePercent=20 -XX:G1HeapWastePercent=5 -XX:G1MixedGCCountTarget=4 -XX:InitiatingHeapOccupancyPercent=15 -XX:G1MixedGCLiveThresholdPercent=90 -XX:G1RSetUpdatingPauseTimePercent=5 -XX:SurvivorRatio=32 -XX:+PerfDisableSharedMem -XX:MaxTenuringThreshold=1 -XX:+UseStringDeduplication -XX:+UseAES -XX:+UseAESIntrinsics -XX:UseSSE=4 -XX:AllocatePrefetchStyle=1 -XX:+UseLoopPredicate -XX:+RangeCheckElimination -XX:+EliminateLocks -XX:+DoEscapeAnalysis -XX:+UseCodeCacheFlushing -XX:+OptimizeStringConcat -XX:+UseCompressedOops -XX:+UseThreadPriorities -XX:+TrustFinalNonStaticFields -XX:+UseInlineCaches -XX:+RewriteBytecodes -XX:+RewriteFrequentPairs -XX:+UseNUMA -XX:-DontCompileHugeMethods -XX:+UseFPUForSpilling -XX:+UseNewLongLShift -XX:+UseXMMForArrayCopy -XX:+UseXmmI2D -XX:+UseXmmI2F -XX:+UseXmmLoadAndClearUpper -XX:+UseXmmRegToRegMoveAll -Dfile.encoding=UTF-8 -Djava.security.egd=file:/dev/urandom"
+    JAVA_CMD="java $COMMON_JVM_FLAGS -jar server.jar nogui"
 
-    if [[ "$VERSION" =~ ^1\.(17|18|19|20)\. ]]; then
-        java $COMMON_JVM_FLAGS --add-modules jdk.incubator.vector -XX:UseAVX=2 -Xlog:async -jar server.jar nogui
-    elif [[ "$VERSION" =~ ^1\.(8|9|10|11|12|13|14|15|16)\. ]]; then
-        java $COMMON_JVM_FLAGS -XX:-UseBiasedLocking -XX:UseAVX=3 -jar server.jar nogui
+    if [[ "$VERSION" =~ ^1\.(17|18|19|20|21)(\.|$) ]]; then
+        JAVA_CMD="java $COMMON_JVM_FLAGS --add-modules jdk.incubator.vector -XX:UseAVX=2 -Xlog:async -jar server.jar nogui"
+    elif [[ "$VERSION" =~ ^1\.(8|9|10|11|12|13|14|15|16)(\.|$) ]]; then
+        JAVA_CMD="java $COMMON_JVM_FLAGS -XX:-UseBiasedLocking -XX:UseAVX=3 -jar server.jar nogui"
     fi
+
+    $JAVA_CMD
 done