From 03a2935963a9b516de0406341436bae737740398 Mon Sep 17 00:00:00 2001
From: Sebastian Thiel <sebastian.thiel@icloud.com>
Date: Wed, 6 Sep 2023 20:48:38 +0200
Subject: [PATCH] feat!: put all IO behind a feature toggle.

That way, it's possible to not compile a bunch of code in `gix` if
the writing of packs isn't required.