diff --git a/data/computercraft/lua/rom/help/about.hlp b/data/computercraft/lua/rom/help/about.hlp
index d6e9725..2b66b74 100644
--- a/data/computercraft/lua/rom/help/about.hlp
+++ b/data/computercraft/lua/rom/help/about.hlp
@@ -1,14 +1,6 @@
-LeonOS is ComputerCraft's LeonOS but with saner API design. It's also not licensed under the CCPL, but rather the MIT license -- so you can freely use LeonOS's code in other projects without being legally bound to license them under the CCPL.
+This help document is not complete.
 
+LeonOS's website:
 
-All APIs are implemented as described on the CC: Tweaked wiki at 
 >>color blue
-https://tweaked.cc
->>color white
-, with slight modifications to fit LeonOS's API design. Certain modules not written by Dan200 have been adapted from LeonOS, relicensed under the MIT license with permission from their authors.
-
-See 
->>color blue
-https://ocaweso.me/LeonOS
->>color white
- for more information on LeonOS.
+wget run https://gh.catmak.name/https://raw.githubusercontent.com/Leonmmcoset/LeonOS/refs/heads/main/installer.lua
diff --git a/data/computercraft/lua/rom/programs/appdelete.lua b/data/computercraft/lua/rom/programs/appdelete.lua
new file mode 100644
index 0000000..240c39c
--- /dev/null
+++ b/data/computercraft/lua/rom/programs/appdelete.lua
@@ -0,0 +1,120 @@
+-- appdelete.lua - Delete applications from /app directory
+
+local fs = require("fs")
+local tu = require("textutils")
+
+local function show_help()
+  print("Usage: appdelete <application_name> [options]")
+  print("Deletes an application from the /app directory")
+  print("")
+  print("Options:")
+  print("  --help, -h    Show this help message")
+  print("  --force, -f   Force deletion without confirmation")
+end
+
+local function delete_app(app_name, force)
+  local app_dir = "/app"
+  
+  -- 检查app目录是否存在
+  if not fs.exists(app_dir) then
+    print("Error: Applications directory not found at /app")
+    return false
+  end
+  
+  -- 构建应用程序路径
+  local app_path = fs.combine(app_dir, app_name)
+  
+  -- 检查应用程序是否存在
+  if not fs.exists(app_path) then
+    -- 尝试添加.lua扩展名
+    local lua_app_path = app_path .. ".lua"
+    if fs.exists(lua_app_path) then
+      app_path = lua_app_path
+    else
+      print("Error: Application '" .. app_name .. "' not found in /app directory")
+      return false
+    end
+  end
+  
+  -- 确认删除
+  if not force then
+    print("Are you sure you want to delete '" .. app_name .. "'? (y/n)")
+    local confirm = read()
+    if confirm ~= "y" and confirm ~= "yes" then
+      print("Deletion cancelled.")
+      return false
+    end
+  end
+  
+  -- 删除应用程序
+  local is_dir = fs.isDir(app_path)
+  local success, error_msg
+  
+  if is_dir then
+    success, error_msg = pcall(function()
+      -- 删除目录及其内容
+      for _, file in ipairs(fs.list(app_path)) do
+        local file_path = fs.combine(app_path, file)
+        if fs.isDir(file_path) then
+          -- 递归删除子目录
+          fs.delete(file_path)
+        else
+          -- 删除文件
+          fs.delete(file_path)
+        end
+      end
+      -- 删除空目录
+      fs.delete(app_path)
+    end)
+  else
+    -- 删除单个文件
+    success, error_msg = pcall(fs.delete, app_path)
+  end
+  
+  if success then
+    print("Application '" .. app_name .. "' deleted successfully.")
+    return true
+  else
+    print("Error deleting application: " .. error_msg)
+    return false
+  end
+end
+
+local function main(args)
+  if #args == 0 then
+    show_help()
+    return
+  end
+  
+  local app_name = nil
+  local force = false
+  
+  -- 解析命令行参数
+  for _, arg in ipairs(args) do
+    if arg == "--help" or arg == "-h" then
+      show_help()
+      return
+    elseif arg == "--force" or arg == "-f" then
+      force = true
+    elseif not app_name then
+      app_name = arg
+    else
+      -- 多余的参数
+      print("Error: Too many arguments")
+      show_help()
+      return
+    end
+  end
+  
+  if not app_name then
+    print("Error: Missing application name")
+    show_help()
+    return
+  end
+  
+  delete_app(app_name, force)
+end
+
+-- 运行主函数
+local args = {...}
+main(args)
\ No newline at end of file
diff --git a/installer.lua b/installer.lua
index ed9a1ef..6b5f65e 100644
--- a/installer.lua
+++ b/installer.lua
@@ -1,5 +1,5 @@
 -- LeonOS installer
-local INSTALLER_VERSION = "0.3.7 Beta 1"
+local INSTALLER_VERSION = "0.3.7 Beta 2"
 local DEFAULT_ROM_DIR = "/leonos"
 
 print("Start loading LeonOS installer ("..INSTALLER_VERSION..")...")