diff --git a/root/.vim/doc/c-cpp-cuda.txt b/root/.vim/doc/c-cpp-cuda.txt
index 5946e53..89c33ba 100644
--- a/root/.vim/doc/c-cpp-cuda.txt
+++ b/root/.vim/doc/c-cpp-cuda.txt
@@ -251,8 +251,6 @@ https://apt.llvm.org/
 https://docs.nvidia.com/cuda/cuda-c-programming-guide/
 https://docs.nvidia.com/cuda/cuda-c-best-practices-guide/
 
-CUDA 安装: https://developer.nvidia.com/cuda-toolkit-archive
-
 |nvidia-docker|
 
 cuda对gcc/clang存在版本要求，例如
@@ -263,6 +261,18 @@ cuda 12.1
 	gcc versions later than 12 are not supported for cuda 12.1
 <
 
+安装CUDA  ~
+
+https://developer.nvidia.com/cuda-toolkit-archive
+
+第一类方法： `apt install nvidia-cuda-toolkit`，安装后nvcc位于 `/usr/bin/nvcc`
+第二类方法：添加apt源后 `apt install cuda`，安装后nvcc位于 `/usr/local/cuda-X-Y/bin/nvcc`
+第三类方法： 下载runfile安装。
+
+卸载CUDA ~
+
+https://docs.nvidia.com/cuda/archive/11.8.0/cuda-installation-guide-linux/index.html#handle-uninstallation
+
 GPU监控 ~
 
 *gpustat* `pip install gpustat`
diff --git a/root/.vim/vimrc b/root/.vim/vimrc
index 68414fa..ac655d0 100644
--- a/root/.vim/vimrc
+++ b/root/.vim/vimrc
@@ -23,6 +23,7 @@ if has('autocmd') " vim-tiny does not have autocmd
 		let g:jdtls_java_runtimes = get(g:, 'jdtls_java_runtimes', [{'name': 'JavaSE-11', 'path': '/usr/lib/jvm/java-11-openjdk-amd64'}, {'name': 'JavaSE-17', 'path': '/usr/lib/jvm/java-17-openjdk-amd64'}])
 		" speed up loading
 		let g:python3_host_prog = get(g:, 'python3_host_prog', '/usr/bin/python3')
+		" WARN: DO NOT use copilot provider, it will cause abuse.
 		let g:avante_provider = get(g:, 'avante_provider', 'openai') " openai, claude
 		let g:avante_auto_suggestions_provider = get(g:, 'avante_auto_suggestions_provider', 'openai') " openai , claude
 		runtime clipboard_config.lua
@@ -74,6 +75,7 @@ if has('autocmd') " vim-tiny does not have autocmd
 	let g:python_formatter = get(g:, 'python_formatter', 'black')
 	let g:python_lsp = get(g:, 'python_lsp', 'pyright')
 	let g:sql_type_default = 'mysql'
+	" copilot.vim, avante.nvim, fittencode, tabnine-nvim, codeium.vim
 	let g:ai_suggestion = get(g:, 'ai_suggestion', 'copilot.vim')
 
 	" gtags-cscope | cscope