From 6d9a392575295326e03da2e66c16c7fa91a42eaf Mon Sep 17 00:00:00 2001
From: Ben Drucker <bvdrucker@gmail.com>
Date: Wed, 8 Jul 2026 10:24:46 -0700
Subject: [PATCH] Replace through2 with core stream.PassThrough

through2 was only used as a no-arg passthrough for .json files. Node's built-in stream.PassThrough does the same thing, so drop the dependency instead of chasing its v5 ESM rewrite. Keeps the package CommonJS and removes a maintenance dependency.
---
 package.json | 1 -
 transform.js | 4 ++--
 2 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/package.json b/package.json
index c757943..2626502 100644
--- a/package.json
+++ b/package.json
@@ -40,7 +40,6 @@
   },
   "dependencies": {
     "replace-requires": "^1.1.0",
-    "through2": "^4.0.1",
     "transformify": "^0.1.2"
   },
   "standard": {
diff --git a/transform.js b/transform.js
index 81f2069..9f0d960 100644
--- a/transform.js
+++ b/transform.js
@@ -1,11 +1,11 @@
 'use strict'
 
-const through = require('through2')
+const { PassThrough } = require('stream')
 const transformify = require('transformify')
 const replaceRequires = require('replace-requires')
 
 module.exports = function (file, options) {
-  if (/\.json$/.test(file)) return through()
+  if (/\.json$/.test(file)) return new PassThrough()
   return transformify(replaceProxyquire)()
 }