A new start

modules/nixos/tools/direnv/default.nix

@@ -0,0 +1,20 @@
+{ options, config, lib, pkgs, ... }:
+
+with lib;
+with lib.metacfg;
+let cfg = config.metacfg.tools.direnv;
+in
+{
+  options.metacfg.tools.direnv = with types; {
+    enable = mkBoolOpt false "Whether or not to enable direnv.";
+  };
+
+  config = mkIf cfg.enable {
+    metacfg.home.extraOptions = {
+      programs.direnv = {
+        enable = true;
+        nix-direnv = enabled;
+      };
+    };
+  };
+}

modules/nixos/tools/git/default.nix

@@ -0,0 +1,61 @@
+{ options, config, pkgs, lib, ... }:
+
+with lib;
+with lib.metacfg;
+let
+  cfg = config.metacfg.tools.git;
+  gpg = config.metacfg.security.gpg;
+  user = config.metacfg.user;
+in
+{
+  options.metacfg.tools.git = with types; {
+    enable = mkBoolOpt false "Whether or not to install and configure git.";
+    userName = mkOpt types.str user.fullName "The name to configure git with.";
+    userEmail = mkOpt types.str user.email "The email to configure git with.";
+    signingKey =
+      mkOpt types.str "9762169A1B35EA68" "The key ID to sign commits with.";
+  };
+
+  config = mkIf cfg.enable {
+    environment.systemPackages = with pkgs; [ git ];
+
+    metacfg.home.extraOptions = {
+      programs.git = {
+        enable = true;
+        inherit (cfg) userName userEmail;
+        lfs = enabled;
+        signing = {
+          key = cfg.signingKey;
+          signByDefault = mkIf gpg.enable true;
+        };
+        extraConfig = {
+          init = { defaultBranch = "main"; };
+          pull = { rebase = true; };
+          push = { autoSetupRemote = true; };
+          core = { whitespace = "trailing-space,space-before-tab"; };
+          safe = {
+            directory = "${user.home}/git";
+          };
+          "credential \"https://github.com\"" = {
+            helper = "!gh auth git-credential";
+          };
+          alias = {
+            co = "checkout";
+            ci = "commit --signoff";
+          };
+          pull.ff = "only";
+          core.pager = "${pkgs.delta}/bin/delta";
+          delta = {
+            features = "decorations";
+            syntax-theme = "DarkNeon";
+            light = "false";
+            navigate = "true";
+          };
+          interactive.diffFilter = "${pkgs.delta}/bin/delta --color-only";
+          merge.conflictStyle = "diff3";
+          diff.colorMoved = "default";
+        };
+      };
+    };
+  };
+}