$ sudo apt update
$ sudo apt install fonts-noto-cjk
$ rm -rf ~/.cache/matplotlib

$ git clone https://github.com/pyconjp/www.pycon.jp.git
$ cd www.pycon.jp
$ python3.13 -m venv env
$ . env/bin/activate
(env)$ pip install -r requirements.txt
(env)$ make html
(env)$ open build/html/index.html