Alacritty

• Alacritty is a cross-platform, GPU-accelerated terminal emulator written in Rust
  • Emphasizes simplicity and performance; intentionally minimal feature set
  • Originally authored by Person/Joe Wilm; now maintained by a community of contributors

  • Platform

    • macOS, Linux, Windows, and FreeBSD

  • Language

    • Rust

  • Image Protocol

    • Supports the Kitty/Graphics/Protocol (added ~2024)
    • Relevant for tools like yazi that display inline images

  • Nix

    • Available in nixpkgs as pkgs.alacritty
    • Idiomatic home-manager module: programs.alacritty
      • Supports generating alacritty.toml config declaratively
      • nix

        programs.alacritty = {
          enable = true;
          settings = {
            font.normal.family = "JetBrains Mono";
            window.opacity = 0.95;
          };
        };

      • font.normal.family uses JetBrains/Font/Mono Nerd.

  • Notable Features

    • GPU rendering via OpenGL/Metal
    • Vi mode for keyboard-driven selection and navigation
    • No tabs or splits built-in — intentional; delegates to tmux/zellij
    • Config via a single alacritty.toml file