Alacritty

sudo pacman -S alacritty

This is my config file located in $HOME/.config/alacritty/alacritty.tomlyml.

window:
  opacity: 0.94
  startup_mode: Maximized
font:
  size: 10.5
shell:
  program: /bin/zsh

You can find  config file from github, or click download here and download the latest version of the alacritty.yml.