Below are some terminal emulators that I used across platforms.

Operating System	Terminal Emulators
MacOS	Terminal, iTerm2
Windows	Command Prompt, Powershell, Cygwin, Windows Terminal
Ubuntu	Gnome Terminal, Tilix

All the above emulators are good, but one issue is each has its settings. You can export settings and keep them in dotfiles, but I was looking for one terminal emulator you can use across all the platforms.

You can accomplish this with Alacritty terminal emulator. It’s lightweight and cross-platform with an OpenGL terminal emulator. Another one is kitty, but kitty does not support windows.

Please note that Alacritty is not like iTerm2 - which provides tabs, split screens, synchronized panes & triggers, etc. All this can be accomplished by terminal multiplexer - tmux. I wrote a separate post that goes through how to setup tmux

• Installation
• Configuration
• Fonts
  • MacOS
  • Windows
  • Linux
• Custom key bindings
• Conclusion

Installation

For both macOS and Windows, there are pre-built binaries from Alacritty releases. For Linux, you can follow the instructions listed here

Configuration

You can use the sample configuration which is listed in Alacritty release page For Mac and OS, the configuration is at ~/.config/alacritty/alacritty.yml. For Windows, the configuration is at C:/Users/<username>/AppData/Roaming/alacritty/alacritty.yml. Below is the configuration I am using for Alacritty.

window:
  dynamic_padding: false
  decorations: buttonless

font:
  size: 16
  normal:
    family: MesloLGSDZ Nerd Font

colors:
  name: Pulp
  author: ""
  primary:
    background: "#000000"
    foreground: "#ffffff"
  cursor:
    text: "#000000"
    cursor: "#ffffff"
  normal:
    black: "#86817e"
    red: "#d75756"
    green: "#688c7d"
    yellow: "#ffb365"
    blue: "#68778c"
    magenta: "#fdb3b2"
    cyan: "#86abd9"
    white: "#f7f8f2"
  bright:
    black: "#86817e"
    red: "#a63a3a"
    green: "#688c7d"
    yellow: "#ffb365"
    blue: "#68778c"
    magenta: "#8c686a"
    cyan: "#86abd9"
    white: "#f7f8f2"

You can quickly preview themes using alacritty-themes

Install alacritty-themes npm i -g alacritty-themes. And then use alacritty-themes to get a fuzzy search of themes as you navigate the alacritty theme is applied and changed.

Note: For comments visibility in terminal, better choose themes like Bleh, Erebus, Gutterslob lightwhite, Pulp, Jelly beans, Muzieoco pastel white

Fonts

For font installation,

MacOS

brew tap  homebrew/cask-fonts
brew install --cask font-meslo-lg-nerd-font

Windows

Download fonts from ryanoasis nert fonts and copy ttf files to C:\Windows\Fonts

Linux

Installing fonts on Ubuntu

https://github.com/ryanoasis/nerd-fonts/tags
$ sudo apt install fontconfig
$ cd ~
$ wget https://github.com/ryanoasis/nerd-fonts/releases/download/v2.1.0/Meslo.zip
$ mkdir -p .local/share/fonts
$ unzip Meslo.zip -d .local/share/fonts
$ cd .local/share/fonts
$ rm *Windows*
$ cd ~
$ rm Meslo.zip
$ fc-cache -fv

Custom key bindings

For macOS, alt keys might not work correctly, have below keybindings listed in alacritty.yml

key_bindings:
  - { key: A, mods: Alt, chars: "\ea" }
  - { key: B, mods: Alt, chars: "\eb" }
  - { key: C, mods: Alt, chars: "\ec" }
  - { key: D, mods: Alt, chars: "\ed" }
  - { key: E, mods: Alt, chars: "\ee" }
  - { key: F, mods: Alt, chars: "\ef" }
  - { key: G, mods: Alt, chars: "\eg" }
  - { key: H, mods: Alt, chars: "\eh" }
  - { key: I, mods: Alt, chars: "\ei" }
  - { key: J, mods: Alt, chars: "\ej" }
  - { key: K, mods: Alt, chars: "\ek" }
  - { key: L, mods: Alt, chars: "\el" }
  - { key: M, mods: Alt, chars: "\em" }
  - { key: N, mods: Alt, chars: "\en" }
  - { key: O, mods: Alt, chars: "\eo" }
  - { key: P, mods: Alt, chars: "\ep" }
  - { key: Q, mods: Alt, chars: "\eq" }
  - { key: R, mods: Alt, chars: "\er" }
  - { key: S, mods: Alt, chars: "\es" }
  - { key: T, mods: Alt, chars: "\et" }
  - { key: U, mods: Alt, chars: "\eu" }
  - { key: V, mods: Alt, chars: "\ev" }
  - { key: W, mods: Alt, chars: "\ew" }
  - { key: X, mods: Alt, chars: "\ex" }
  - { key: Y, mods: Alt, chars: "\ey" }
  - { key: Z, mods: Alt, chars: "\ez" }
  - { key: A, mods: Alt|Shift, chars: "\eA" }
  - { key: B, mods: Alt|Shift, chars: "\eB" }
  - { key: C, mods: Alt|Shift, chars: "\eC" }
  - { key: D, mods: Alt|Shift, chars: "\eD" }
  - { key: E, mods: Alt|Shift, chars: "\eE" }
  - { key: F, mods: Alt|Shift, chars: "\eF" }
  - { key: G, mods: Alt|Shift, chars: "\eG" }
  - { key: H, mods: Alt|Shift, chars: "\eH" }
  - { key: I, mods: Alt|Shift, chars: "\eI" }
  - { key: J, mods: Alt|Shift, chars: "\eJ" }
  - { key: K, mods: Alt|Shift, chars: "\eK" }
  - { key: L, mods: Alt|Shift, chars: "\eL" }
  - { key: M, mods: Alt|Shift, chars: "\eM" }
  - { key: N, mods: Alt|Shift, chars: "\eN" }
  - { key: O, mods: Alt|Shift, chars: "\eO" }
  - { key: P, mods: Alt|Shift, chars: "\eP" }
  - { key: Q, mods: Alt|Shift, chars: "\eQ" }
  - { key: R, mods: Alt|Shift, chars: "\eR" }
  - { key: S, mods: Alt|Shift, chars: "\eS" }
  - { key: T, mods: Alt|Shift, chars: "\eT" }
  - { key: U, mods: Alt|Shift, chars: "\eU" }
  - { key: V, mods: Alt|Shift, chars: "\eV" }
  - { key: W, mods: Alt|Shift, chars: "\eW" }
  - { key: X, mods: Alt|Shift, chars: "\eX" }
  - { key: Y, mods: Alt|Shift, chars: "\eY" }
  - { key: Z, mods: Alt|Shift, chars: "\eZ" }
  - { key: Key1, mods: Alt, chars: "\e1" }
  - { key: Key2, mods: Alt, chars: "\e2" }
  - { key: Key3, mods: Alt, chars: "\e3" }
  - { key: Key4, mods: Alt, chars: "\e4" }
  - { key: Key5, mods: Alt, chars: "\e5" }
  - { key: Key6, mods: Alt, chars: "\e6" }
  - { key: Key7, mods: Alt, chars: "\e7" }
  - { key: Key8, mods: Alt, chars: "\e8" }
  - { key: Key9, mods: Alt, chars: "\e9" }
  - { key: Key0, mods: Alt, chars: "\e0" }
  - { key: Space, mods: Control, chars: "\0" }
  # Ctrl + Space
  - { key: Grave, mods: Alt, chars: "\e`" }
  # Alt + `
  - { key: Grave, mods: Alt|Shift, chars: "\e~" }
  # Alt + ~
  - { key: Period, mods: Alt, chars: "\e." }
  # Alt + .
  - { key: Key8, mods: Alt|Shift, chars: "\e*" }
  # Alt + *
  - { key: Key3, mods: Alt|Shift, chars: "\e#" }
  # Alt + #
  - { key: Period, mods: Alt|Shift, chars: "\e>" }
  # Alt + >
  - { key: Comma, mods: Alt|Shift, chars: "\e<" }
  # Alt + <
  - { key: Minus, mods: Alt|Shift, chars: "\e_" }
  # Alt + _
  - { key: Key5, mods: Alt|Shift, chars: "\e%" }
  # Alt + %
  - { key: Key6, mods: Alt|Shift, chars: "\e^" }
  # Alt + ^
  - { key: Backslash, mods: Alt, chars: "\e\\" }
  # Alt + \
  - { key: Backslash, mods: Alt|Shift, chars: "\e|" }
  # Alt + |

Conclusion

If you are looking for a cross-platform terminal emulator, check Alacritty. You can refer to my configuration here. Another terminal emulator also good is kitty. You can refer my kitty config file here (location of kitty conf is ~/.config/kitty/kitty.conf) – RC