diff --git a/.vscode/launch-convert_all.json b/.vscode/launch-convert_all.json
index 53242de..b7a2365 100644
--- a/.vscode/launch-convert_all.json
+++ b/.vscode/launch-convert_all.json
@@ -11,7 +11,7 @@
             "program": "${file}",
             "console": "integratedTerminal",
             "justMyCode": true,
-            "args": ["--input", "ext-dict/star_anhviet.tab"],
+            "args": ["--input_folder", "./ext-dict", "--output_folder", "./ext-output", "--extension", "tab"]
         }
     ]
 }
diff --git a/.vscode/launch-tab_stats.json b/.vscode/launch-tab_stats.json
index ef710d7..7ee5c00 100644
--- a/.vscode/launch-tab_stats.json
+++ b/.vscode/launch-tab_stats.json
@@ -8,7 +8,7 @@
             "name": "Python: Current File",
             "type": "python",
             "request": "launch",
-            "program": "${file}",
+            "program": "./bin/tab_stats.py",
             "console": "integratedTerminal",
             "justMyCode": true,
             "args": ["--input", "ext-stardict-vi/ko-vi/star_hanviet.tab"],
diff --git a/.vscode/launch.json b/.vscode/launch.json
index b7a2365..553e3be 100644
--- a/.vscode/launch.json
+++ b/.vscode/launch.json
@@ -5,14 +5,23 @@
     "version": "0.2.0",
     "configurations": [
         {
-            "name": "Python: Current File",
-            "type": "python",
+            "type": "rdbg",
+            "name": "Debug current file with rdbg",
             "request": "launch",
-            "program": "${file}",
-            "console": "integratedTerminal",
-            "justMyCode": true,
-            "args": ["--input_folder", "./ext-dict", "--output_folder", "./ext-output", "--extension", "tab"]
+            "script": "${file}",
+            "args":  ["--from-lang",
+            "Vietnamese",
+            "--to-lang Vietnamese",
+            "--output", 
+            "./ext-output/lingvo/Bach_khoa_toan_thu.dsl",
+            "./ext-dict/Bach_khoa_toan_thu.tab"],
+            
+            "askParameters": false
+        },
+        {
+            "type": "rdbg",
+            "name": "Attach with rdbg",
+            "request": "attach"
         }
     ]
-}
-
+}
\ No newline at end of file
diff --git a/.vscode/rubylaunch.json b/.vscode/rubylaunch.json
new file mode 100644
index 0000000..e73d0c4
--- /dev/null
+++ b/.vscode/rubylaunch.json
@@ -0,0 +1,27 @@
+{
+    // Use IntelliSense to learn about possible attributes.
+    // Hover to view descriptions of existing attributes.
+    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "type": "rdbg",
+            "name": "Debug current file with rdbg",
+            "request": "launch",
+            "script": "${file}",
+            "args":  ["--from-lang",
+            "Vietnamese",
+            "--to-lang Vietnamese",
+            "--output", 
+            "./ext-output/lingvo/Wikipedia.dsl",
+            "./ext-dict/Wikipedia.tab"],
+            
+            "askParameters": true
+        },
+        {
+            "type": "rdbg",
+            "name": "Attach with rdbg",
+            "request": "attach"
+        }
+    ]
+}
\ No newline at end of file
diff --git a/Gemfile b/Gemfile
new file mode 100644
index 0000000..2b27781
--- /dev/null
+++ b/Gemfile
@@ -0,0 +1,3 @@
+source 'https://rubygems.org'
+
+gem "debug", require: false
diff --git a/Gemfile.lock b/Gemfile.lock
new file mode 100644
index 0000000..885200f
--- /dev/null
+++ b/Gemfile.lock
@@ -0,0 +1,20 @@
+GEM
+  remote: https://rubygems.org/
+  specs:
+    debug (1.6.3)
+      irb (>= 1.3.6)
+      reline (>= 0.3.1)
+    io-console (0.5.11)
+    irb (1.4.2)
+      reline (>= 0.3.0)
+    reline (0.3.1)
+      io-console (~> 0.5)
+
+PLATFORMS
+  x86_64-linux
+
+DEPENDENCIES
+  debug
+
+BUNDLED WITH
+   2.3.25
diff --git a/bin/convert_all.py b/bin/convert_all.py
index 89ab240..fd2d7c0 100755
--- a/bin/convert_all.py
+++ b/bin/convert_all.py
@@ -74,8 +74,8 @@ def main() -> None:
 
     args, array = parser.parse_known_args()
 
-    input_folder = args.input_folder.replace(' ', '\\ ') 
-    output_folder = args.output_folder.replace(' ', '\\ ') 
+    input_folder = args.input_folder.replace(' ', '\\ ')
+    output_folder = args.output_folder.replace(' ', '\\ ')
     extension = args.extension
     metadata = args.metadata
 
diff --git a/bin/install_linux_packages.sh b/bin/install_linux_packages.sh
index 9d334a6..0176a7d 100755
--- a/bin/install_linux_packages.sh
+++ b/bin/install_linux_packages.sh
@@ -1,5 +1,5 @@
 #!/bin/bash
 
 sudo apt-get install dictzip &&
-sudo apt install ruby-full
- 
\ No newline at end of file
+sudo apt install ruby-full &&
+sudo gem install bundler debug io-console
diff --git a/dsl-tools b/dsl-tools
index 66d8407..2c08146 160000
--- a/dsl-tools
+++ b/dsl-tools
@@ -1 +1 @@
-Subproject commit 66d8407427a4743b0b0447b870f847367ba52ee4
+Subproject commit 2c08146c8feb85406404edfd4ecf3b69aefbb8ca