Several changes:

- gpg working in darwin
- new git full package
- git settings for darwin (using different account)
- updaded techinque to detect host platform

users/profiles/git/default.nix

@@ -1,19 +1,33 @@
+{ pkgs, ... }:
+
+let
+  config =
+    if pkgs.stdenv.hostPlatform.isDarwin then {
+      name = "Andrea Ciceri";
+      email = "andrea.ciceri@beatdata.it";
+    } else {
+      name = "Andrea Ciceri";
+      email = "andrea.ciceri@autistici.org";
+    };
+in
 {
   programs.git = {
     enable = true;
+    package = pkgs.gitAndTools.gitFull;
 
     extraConfig = {
       pull.rebase = false;
     };
 
-    userName = "aciceri";
-    userEmail = "andrea.ciceri@autistici.org";
+    userName = config.name;
+    userEmail = config.email;
     signing = {
       signByDefault = true;
-      key = "andrea.ciceri@autistici.org";
+      key = config.email;
     };
+
     extraConfig = {
-      url = {
+      url = if pkgs.stdenv.hostPlatform.isDarwin then { } else {
         "ssh://git@github.com/" = { insteadOf = https://github.com/; };
       };
     };