{
  flake.modules.homeManager.git =
    { lib, pkgs, ... }:

    let
      difftastic = pkgs.difftastic;
      difft = lib.getExe difftastic;
    in
    {
      home.packages = [
        difftastic
      ];

      programs.git = {
        enable = true;
        signing.key = "A5CC2BE3";

        ignores = [
          "*.swo"
          "*.swp"
        ];

        settings = {
          user.name = "Jesse Hallett";
          user.email = "jesse@sitr.us";
          aliases = {
            di = "diff --cached";
            lg = "log --color --graph --pretty=format:'%Cred%h%Creset -%C(yellow)%d%Creset %s %Cgreen(%cr) %C(bold blue)<%an>%Creset' --abbrev-commit";
            commend = "commit --amend --no-edit";
            it = "!git init && read -p 'Committer email address for this repo: ' email && git config user.email $email && git commit -m 'initial commit' --allow-empty";
            up = "git fetch origin main:main";
          };
          column.ui = "auto"; # columns display for status, branches, tags
          branch.sort = "-committerdate";
          core = {
            pager = "less -FR";
            autocrlf = "input";
            editor = "nvim";
          };
          color.diff = {
            oldMoved = "magenta";
            oldMovedAlternative = "#ea76cb"; # pink
            newMoved = "cyan";
            newMovedAlternative = "#179299"; # teal
          };
          diff = {
            algorithm = "histogram";
            colorMoved = "zebra"; # highlight moved lines with distinct colors for adjacent blocks moved to/from different places
            mnemonicPrefix = true; # replace a/ b/ in diffs with initials for index, worktree, commit
            renames = true; # turn on file rename detection
          };
          fetch = {
            prune = true; # delete origin/ branch pointers locally when upstream branches are removed
            all = true; # apply pruning to all branches
          };
          init.defaultBranch = "main";
          merge.conflictstyle = "zdiff3"; # three-way conflict markers instead of two-way
          push = {
            default = "simple";
            followTags = true; # automatically push tags, like `push --tags`
          };
          pull.ff = "only";
          tag.sort = "version:refname"; # sorts semver strings
          user.useConfigOnly = true;

          # Settings given in difftastic manual https://difftastic.wilfred.me.uk/git.html
          diff.external = "${difft} --display side-by-side";
          diff.tool = "difftastic";
          difftool.prompt = false;
          "difftool \"difftastic\"".cmd = ''${difft} "$LOCAL" "$REMOTE"'';
          pager.difftool = true;

          rebase = {
            autosquash = true; # automatically squash fixups, etc.
          };
        };
      };
    };
}