$ sudo apt update
// sudo apt update error: "Release file is not yet valid" 오류 발생시:
$ sudo hwclock --hctosys
$ sudo apt upgrade
$ sudo apt install -y build-essential libncurses5-dev libffi-dev libbz2-dev zlib1g zlib1g-dev libreadline-dev libsqlite3-dev
$ brew install pyenv
$ brew install pyenv-virtualenv
$ pyenv install --list
$ pyenv install 3.9.6
$ pyenv versions
...
export PYENV_ROOT="$HOME/.pyenv"
export PATH="$PYENV_ROOT/shims:$PATH"
if which pyenv > /dev/null; then eval "$(pyenv init -)"; fi
if which pyenv-virtualenv-init > /dev/null; then eval "$(pyenv virtualenv-init -)"; fi
$ brew install poetry
$ poetry config virtualenvs.in-project true
$ poetry config virtualenvs.path "./.venv"
$ poetry install && poetry update