装机配置参考 https://pcpartpicker.com/list/fxjBQ6。由于硬件不是本文重点，按下不表

ZSH 与常见命令行工具

sudo apt install zsh curl ca-certificates vim  plocate git git-lfs tree
which zsh
chsh
# also change the shell in vscode by editing settings.json

推荐的配置文件 　https://github.com/skywind3000/vim/blob/master/etc/prezto.zsh, 作者在知乎解释了怎么用

为什么说 zsh 是 shell 中的极品？

• Need to set colored prompt by commenting the line zstyle ':prezto:module:prompt' theme 'redhat'

• Next step is to append the config line in the end

  PROMPT='[%F{green}%n%f@%F{cyan}%m%f %F{blue}%B%~%b%f]$ '
  

• The final effect will be [zpj@hostname ~]$ but with green, cyan, and blue colors

SSH

SSH Keygen and add it into github

ssh-keygen -t ed25519 -C "[email protected]"
cat ~/.ssh/id_ed25519.pub

Setup SSH Server

sudo apt-get install openssh-server
sudo systemctl enable ssh
sudo systemctl enable ssh --now
sudo systemctl start ssh
sudo vim /etc/ssh/sshd_config # disable password auth
vim .ssh/authorized_keys # add known pubkey
sudo systemctl restart ssh.service

Change Grub timeout

sudo vim /etc/default/grub # change timeout value
sudo update-grub && grep -B3 "set timeout=" /boot/grub/grub.cfg