diff --git a/launcher/.gitignore b/launcher/.gitignore
index 738b87b..edbd9be 100644
--- a/launcher/.gitignore
+++ b/launcher/.gitignore
@@ -18,4 +18,7 @@ Thumbs.db
 
 # Build outputs
 server/builds/
-server/logs/
\ No newline at end of file
+server/logs/
+
+# Colab
+colab/
\ No newline at end of file
diff --git a/launcher/bootstrap/Test.class b/launcher/bootstrap/Test.class
new file mode 100644
index 0000000..10efc1a
Binary files /dev/null and b/launcher/bootstrap/Test.class differ
diff --git a/launcher/bootstrap/Test.java b/launcher/bootstrap/Test.java
new file mode 100644
index 0000000..cdbb0f9
--- /dev/null
+++ b/launcher/bootstrap/Test.java
@@ -0,0 +1,22 @@
+public class Test {
+    public static void main(String[] args) {
+        String line = "{\"version\":\"1.0.8\",\"updated_at\":\"2026-05-06T04:38:07\"}";
+        System.out.println("Line: " + line);
+        
+        int start = line.indexOf("\"version\":\"");
+        System.out.println("start (version): " + start);
+        
+        if (start >= 0) {
+            start += 10;
+            System.out.println("start + 10: " + start);
+            
+            int end = line.indexOf("\"", start + 1);
+            System.out.println("end: " + end);
+            
+            if (end > start) {
+                String result = line.substring(start, end);
+                System.out.println("Result: [" + result + "]");
+            }
+        }
+    }
+}
diff --git a/launcher/bootstrap/Test2.class b/launcher/bootstrap/Test2.class
new file mode 100644
index 0000000..67436f5
Binary files /dev/null and b/launcher/bootstrap/Test2.class differ
diff --git a/launcher/bootstrap/Test2.java b/launcher/bootstrap/Test2.java
new file mode 100644
index 0000000..67a8a66
--- /dev/null
+++ b/launcher/bootstrap/Test2.java
@@ -0,0 +1,31 @@
+public class Test2 {
+    public static void main(String[] args) {
+        String[] tests = {
+            "{\"version\":\"1.0.8\",\"updated_at\":\"2026-05-06T04:38:07\"}",
+            "{\"version\":\"1.0.2\"}",
+            "invalid json"
+        };
+        
+        for (String line : tests) {
+            String result = getVersion(line);
+            System.out.println("Input: " + line);
+            System.out.println("Output: [" + result + "]");
+            System.out.println("Length: " + result.length());
+            System.out.println();
+        }
+    }
+    
+    static String getVersion(String line) {
+        if (line != null && line.contains("version")) {
+            int start = line.indexOf("\"version\":\"");
+            if (start >= 0) {
+                start += 10;
+                int end = line.indexOf("\"", start + 1);
+                if (end > start) {
+                    return line.substring(start, end);
+                }
+            }
+        }
+        return "unknown";
+    }
+}
diff --git a/launcher/launcher/.gitignore b/launcher/launcher/.gitignore
new file mode 100644
index 0000000..47b546a
--- /dev/null
+++ b/launcher/launcher/.gitignore
@@ -0,0 +1,16 @@
+# Maven
+*/target/
+target/
+
+# Build outputs
+server/builds/
+server/logs/
+
+# IDE  
+.idea/
+*.iml
+.vscode/
+
+# OS
+.DS_Store
+Thumbs.db
\ No newline at end of file