diff --git a/git/git_branch_age.nu b/git/git_branch_age.nu
index 43dd136..9e30bf6 100755
--- a/git/git_branch_age.nu
+++ b/git/git_branch_age.nu
@@ -1,6 +1,15 @@
 # Creates a table listing the branches of a git repository and the day of the last commit
-git branch | lines | str substring 2, | wrap name | insert "last commit" {
-    get name | each {
-        git show $it --no-patch --format=%as
-    }
-} | sort-by "last commit"
+def "git age" [] {
+    git branch |
+    lines |
+    str substring 2, |
+    wrap name |
+    insert last_commit {
+        get name |
+        each {
+            git show $it --no-patch --format=%as | str to-datetime
+        }
+    } |
+    sort-by last_commit
+}
+
diff --git a/with_externals/README.md b/with_externals/README.md
new file mode 100644
index 0000000..32559fb
--- /dev/null
+++ b/with_externals/README.md
@@ -0,0 +1,7 @@
+# With Externals
+
+This folder includes various nushell scripts that require installing an external program in order to work.
+
+### Contributing
+
+Please include the name of the program and, if possible, basic installation instructions, as part of your script.
diff --git a/with_externals/loc.nu b/with_externals/loc.nu
new file mode 100644
index 0000000..41524ca
--- /dev/null
+++ b/with_externals/loc.nu
@@ -0,0 +1,13 @@
+# This script requires that `tokei` be installed and available!
+
+# Count lines of code in a project.
+def "loc" [
+    ...rest # args to pass to tokei
+] {
+    tokei -o json $rest |
+    from json |
+    pivot |
+    rename lang lines |
+    insert files { get lines.reports | length } |
+    select lang files lines.code lines.comments lines.blanks
+}