From 91e812f0698997c1d6449af2896439efe65ec2a5 Mon Sep 17 00:00:00 2001
From: K900 <me@0upti.me>
Date: Sun, 15 Feb 2026 14:20:11 +0300
Subject: [PATCH] yarn-berry: fix fetcher with latest zlib-ng

This sucks. This SUCKS. I have no better fix.
---
 .../by-name/ya/yarn-berry/fetcher/default.nix | 20 ++++++++++++++++---
 1 file changed, 17 insertions(+), 3 deletions(-)

diff --git a/pkgs/by-name/ya/yarn-berry/fetcher/default.nix b/pkgs/by-name/ya/yarn-berry/fetcher/default.nix
index a9e3b920fe04..5392c6450ccd 100644
--- a/pkgs/by-name/ya/yarn-berry/fetcher/default.nix
+++ b/pkgs/by-name/ya/yarn-berry/fetcher/default.nix
@@ -8,6 +8,7 @@
   zlib-ng,
   makeScopeWithSplicing',
   generateSplicesForMkScope,
+  fetchpatch,
 }:
 
 let
@@ -46,9 +47,22 @@ let
       libzip =
         (libzip.override {
           # Known good version: 2.2.4
-          zlib = zlib-ng.override {
-            withZlibCompat = true;
-          };
+          zlib =
+            (zlib-ng.overrideAttrs (old: {
+              patches = old.patches or [ ] ++ [
+                # Yarn hashes the output of libzip(untar(tarball)), so the output of libzip
+                # needs to be an exact match across versions, and this commit changes the
+                # exact output. This is ridiculous, but such is life.
+                (fetchpatch {
+                  url = "https://github.com/zlib-ng/zlib-ng/commit/be819413be8a284b1827437006c0859644d0c367.patch";
+                  revert = true;
+                  hash = "sha256-rwRcNKpA2dMWkC6WRATDOCYCDDqqPvFJkQ6DLDohQd8=";
+                })
+              ];
+            })).override
+              {
+                withZlibCompat = true;
+              };
         }).overrideAttrs
           (old: {
             patches = (old.patches or [ ]) ++ [