From 437380edb38dcbf40e8c38188bdb3e2b123b65df Mon Sep 17 00:00:00 2001
From: Roman <dev@rman.dev>
Date: Mon, 16 Mar 2026 14:42:20 +0000
Subject: [PATCH 1/4] feat: add `duplexer` to replacements

---
 docs/modules/duplexer.md | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
 create mode 100644 docs/modules/duplexer.md

diff --git a/docs/modules/duplexer.md b/docs/modules/duplexer.md
new file mode 100644
index 00000000..5fcf2768
--- /dev/null
+++ b/docs/modules/duplexer.md
@@ -0,0 +1,20 @@
+[`Duplex.from`](https://nodejs.org/api/stream.html#streamduplexfromsrc) can be used instead
+
+Before:
+
+```js
+import duplexer from 'duplexer'
+
+duplexer(writableStream, readableStream)
+```
+
+After:
+
+```js
+import { Duplex } from 'node:stream'
+
+Duplex.from({
+  writable: writableStream,
+  readable: readableStream
+})
+```

From 1ddbbe225d254e79352a6a880dcd06720413448b Mon Sep 17 00:00:00 2001
From: Roman <dev@rman.dev>
Date: Mon, 16 Mar 2026 18:24:15 +0000
Subject: [PATCH 2/4] update

---
 docs/modules/duplexer.md | 28 ++++++++++++++--------------
 manifests/preferred.json |  6 ++++++
 2 files changed, 20 insertions(+), 14 deletions(-)

diff --git a/docs/modules/duplexer.md b/docs/modules/duplexer.md
index 5fcf2768..b6ef9db3 100644
--- a/docs/modules/duplexer.md
+++ b/docs/modules/duplexer.md
@@ -1,20 +1,20 @@
-[`Duplex.from`](https://nodejs.org/api/stream.html#streamduplexfromsrc) can be used instead
+---
+description: Modern alternatives to the duplexer package
+---
 
-Before:
+# Replacements for `duplexer`
 
-```js
-import duplexer from 'duplexer'
-
-duplexer(writableStream, readableStream)
-```
-
-After:
+## `stream.Duplex.from` (native, Node.js)
 
+<!-- prettier-ignore -->
 ```js
-import { Duplex } from 'node:stream'
+import duplexer from 'duplexer' // [!code --]
+import { Duplex } from 'node:stream' // [!code ++]
+
+duplexer(writableStream, readableStream) // [!code --]
 
-Duplex.from({
-  writable: writableStream,
-  readable: readableStream
-})
+Duplex.from({ // [!code ++]
+  writable: writableStream, // [!code ++]
+  readable: readableStream // [!code ++]
+}) // [!code ++]
 ```
diff --git a/manifests/preferred.json b/manifests/preferred.json
index fbb01a86..c2188119 100644
--- a/manifests/preferred.json
+++ b/manifests/preferred.json
@@ -156,6 +156,12 @@
       "replacements": ["--env-file"],
       "url": {"type": "e18e", "id": "dotenv"}
     },
+    "duplexer": {
+      "type": "module",
+      "moduleName": "duplexer",
+      "replacements": ["node:stream"],
+      "url": {"type": "e18e", "id": "duplexer"}
+    },
     "emoji-regex": {
       "type": "module",
       "moduleName": "emoji-regex",

From 9b106ae182e59befdd12dfbaf6cd5f86df4c89c3 Mon Sep 17 00:00:00 2001
From: Roman <dev@rman.dev>
Date: Mon, 16 Mar 2026 18:39:20 +0000
Subject: [PATCH 3/4] readme

---
 docs/modules/README.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/docs/modules/README.md b/docs/modules/README.md
index 5f633e27..8a4d50fa 100644
--- a/docs/modules/README.md
+++ b/docs/modules/README.md
@@ -34,6 +34,7 @@ ESLint plugin.
 - [`detect-package-manager`](./detect-package-manager.md)
 - [`dot-prop`](./dot-prop.md)
 - [`dotenv`](./dotenv.md)
+- [`duplexer`](./duplexer.md)
 - [`emoji-regex`](./emoji-regex.md)
 - [`eslint-plugin-es`](./eslint-plugin-es.md)
 - [`eslint-plugin-eslint-comments`](./eslint-plugin-eslint-comments.md)

From ba1c1e4d5e392833b9fdd4b442e2f5c6a78425c9 Mon Sep 17 00:00:00 2001
From: James Garbutt <43081j@users.noreply.github.com>
Date: Tue, 17 Mar 2026 04:29:36 +0000
Subject: [PATCH 4/4] Apply suggestion from @43081j

---
 docs/modules/duplexer.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/modules/duplexer.md b/docs/modules/duplexer.md
index b6ef9db3..caa98f71 100644
--- a/docs/modules/duplexer.md
+++ b/docs/modules/duplexer.md
@@ -4,7 +4,7 @@ description: Modern alternatives to the duplexer package
 
 # Replacements for `duplexer`
 
-## `stream.Duplex.from` (native, Node.js)
+## `Duplex.from` (native, Node.js)
 
 <!-- prettier-ignore -->
 ```js