```
git clone https://github.com/raspberrypi/documentation.git
cd documentation
sudo apt install -y ruby ruby-dev python3 python3-pip make ninja-build
```
then add these lines to the bottom of your $HOME/.bashrc:

```
export GEM_HOME="$(ruby -e 'puts Gem.user_dir')"
export PATH="$PATH:$GEM_HOME/bin"
```
```
sudo gem install bundler
sudo bundle install
```
如果出现「Bundler 2.5.23 is running, but your lockfile was generated with 2.3.22. Installing Bundler 2.3.22 and restarting using that version.」
```
sudo gem uninstall bundler
sudo gem install bundler -v 2.3.22
```
```
# pip3 install --user -r requirements.txt
python -m venv env
source env/bin/activate
pip3 install -r requirements.txt -i https://pypi.tuna.tsinghua.edu.cn/simple
make
make serve_html
```
You can also use make to delete the build/ and documentation/html/ directories:
```
make clean
```