added metadata to flake, fixed darwin ghostty issue

not really, ghostty is broken on darwin systems

meta/README.md

@@ -0,0 +1,11 @@
+# Metadata
+
+Developed and designed by Wyatt J. Miller, 2025
+
+Licensed by the Mozilla Public License v2
+
+_"That's so meta!"_
+
+## Synopsis
+
+This is just metadata about the configuration and the repository. This might interest contributors but the average Joe probably won't find a use for this.

meta/default.nix

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+{ lib, ... }: with lib; {
+  maintainers = import ./maintainers.nix;
+}