Real git prune alias

programs/git.nix

@@ -0,0 +1,14 @@
+{ pkgs, ... } :
+
+{
+  programs.git = {
+    enable = true;
+    settings.user = {
+      name = "Armel van Ravels";
+      email = "armel@localhost";
+    };
+    settings.alias = {
+      prune = "!git fetch -p && git branch -vv | grep \": gone]\" | grep -v \"*\" | awk '{print $1}' | xargs -r git branch -D";
+    };
+  };
+}