initial commit

git.nix

@@ -0,0 +1,68 @@
+{ pkgs-stable, ... }:
+
+{
+  # ============================================================================
+  # Git Configuration
+  # ============================================================================
+  programs.git = {
+    enable = true;
+    package = pkgs-stable.git;
+
+    settings = {
+      user.name = "GammaKinematics";
+      user.email = "gamma.kinematics@gmail.com";
+      init.defaultBranch = "main";
+      pull.rebase = true;
+      push.autoSetupRemote = true;
+      # Use SSH for GitHub
+      url."ssh://git@github.com/".insteadOf = "https://github.com/";
+    };
+
+    # Delta - better diff viewer
+    # delta = {
+    #   enable = true;
+    #   options = {
+    #     navigate = true;
+    #     light = false;
+    #     line-numbers = true;
+    #   };
+    # };
+
+    # Aliases
+    # aliases = {
+    #   co = "checkout";
+    #   br = "branch";
+    #   ci = "commit";
+    #   st = "status";
+    #   lg = "log --oneline --graph --decorate";
+    # };
+
+    # SSH signing (for verified commits)
+    # signing = {
+    #   key = "~/.ssh/id_ed25519.pub";
+    #   signByDefault = true;
+    # };
+    # extraConfig.gpg.format = "ssh";
+  };
+
+  # ============================================================================
+  # SSH Configuration
+  # ============================================================================
+  programs.ssh = {
+    enable = true;
+    enableDefaultConfig = false;
+    matchBlocks = {
+      "github.com" = {
+        host = "github.com";
+        identityFile = "~/.ssh/id_ed25519";
+        identitiesOnly = true;
+      };
+      # Add more hosts as needed
+      # "gitlab.com" = {
+      #   host = "gitlab.com";
+      #   identityFile = "~/.ssh/id_ed25519";
+      #   identitiesOnly = true;
+      # };
+    };
+  };
+}