Hmm...  Looks like a unified diff to me...
The text leading up to this was:
--------------------------
|From 4136d94fe37800370470f42bfb684523e2ccc28c Mon Sep 17 00:00:00 2001
|From: thjbbvlt <thibault2@ik.me>
|Date: Mon, 3 Nov 2025 11:33:05 +0100
|Subject: [PATCH] stacker updated for version 6.6
|
|---
| config.def.h | 14 +++++++--
| dwm.c        | 88 ++++++++++++++++++++++++++++++++++++++++------------
| 2 files changed, 80 insertions(+), 22 deletions(-)
|
|diff --git a/config.def.h b/config.def.h
|index 81c3fc0..4583f94 100644
|--- a/config.def.h
|+++ b/config.def.h
--------------------------
Patching file config.def.h using Plan A...
Hunk #1 succeeded at 51 (offset -1 lines).
Hunk #2 succeeded at 73 (offset -1 lines).
Hunk #3 succeeded at 102 (offset -1 lines).
Hmm...  The next patch looks like a unified diff to me...
The text leading up to this was:
--------------------------
|diff --git a/dwm.c b/dwm.c
|index 4f345ee..3fdf66e 100644
|--- a/dwm.c
|+++ b/dwm.c
--------------------------
Patching file dwm.c using Plan A...
Hunk #1 succeeded at 47.
Hunk #2 succeeded at 192.
Hunk #3 succeeded at 212.
Hunk #4 succeeded at 845.
Hunk #5 succeeded at 1251.
Hunk #6 succeeded at 1685.
Hmm...  Ignoring the trailing garbage.
done