diff --git a/bin.js b/bin.js
index 7fd8d68..b2d99a0 100755
--- a/bin.js
+++ b/bin.js
@@ -18,10 +18,9 @@ import tree from 'pretty-tree'
 import { inspect } from 'util'
 import { createServer } from '@domstack/sync'
 import { packageDirectory } from 'package-directory'
-import { readPackage } from 'read-pkg'
-import { addPackageDependencies } from 'write-package'
 
 import { copyFile } from './lib/helpers/copy-file.js'
+import { addPackageDependencies } from './lib/helpers/add-package-dependencies.js'
 import { DomStack } from './index.js'
 import { DomStackAggregateError } from './lib/helpers/domstack-aggregate-error.js'
 import { generateTreeData } from './lib/helpers/generate-tree-data.js'
@@ -30,9 +29,10 @@ import { createDomStackLogger } from './lib/logger.js'
 
 const __dirname = import.meta.dirname
 
-async function getPkg () {
-  const pkgPath = resolve(__dirname, './package.json')
-  const pkg = JSON.parse(await readFile(pkgPath, 'utf8'))
+/** @param {string} [pkgPath] */
+async function getPkg (pkgPath = resolve(__dirname, './package.json')) {
+  const source = await readFile(pkgPath, 'utf8')
+  const pkg = JSON.parse(source.replace(/^\uFEFF/, ''))
   return pkg
 }
 
@@ -152,7 +152,7 @@ async function run () {
     }
 
     const localPkgJson = join(localPkg, 'package.json')
-    const localPkgJsonContents = await readPackage({ cwd: localPkg })
+    const localPkgJsonContents = await getPkg(localPkgJson)
     const targetIsModule = localPkgJsonContents.type === 'module'
 
     const relativeSrc = relative(process.cwd(), src)
@@ -162,7 +162,7 @@ async function run () {
     const targetGlobalStylePath = 'globals/global.css'
     const targetGlobalClientPath = `globals/global.client.${targetIsModule ? 'js' : 'mjs'}`
 
-    const tbPkgContents = await readPackage({ cwd: __dirname })
+    const tbPkgContents = await getPkg()
     const mineVersion = tbPkgContents?.['dependencies']?.['mine.css']
     const fragtmlVersion = tbPkgContents?.['dependencies']?.['fragtml']
     const highlightVersion = tbPkgContents?.['dependencies']?.['highlight.js']
@@ -200,11 +200,9 @@ domstack eject actions:
     await addPackageDependencies(
       localPkgJson,
       {
-        dependencies: {
-          'mine.css': mineVersion,
-          fragtml: fragtmlVersion,
-          'highlight.js': highlightVersion,
-        },
+        'mine.css': mineVersion,
+        fragtml: fragtmlVersion,
+        'highlight.js': highlightVersion,
       })
 
     console.log('Done ejecting files!')
diff --git a/lib/helpers/add-package-dependencies.js b/lib/helpers/add-package-dependencies.js
new file mode 100644
index 0000000..c63faef
--- /dev/null
+++ b/lib/helpers/add-package-dependencies.js
@@ -0,0 +1,24 @@
+import { readFile, writeFile } from 'node:fs/promises'
+
+/**
+ * Add production dependencies without normalizing unrelated package metadata.
+ *
+ * @param {string} packagePath
+ * @param {Record<string, string>} dependencies
+ */
+export async function addPackageDependencies (packagePath, dependencies) {
+  const source = await readFile(packagePath, 'utf8')
+  const packageData = JSON.parse(source.replace(/^\uFEFF/, ''))
+  const indentation = source.match(/^[\t ]+(?=")/m)?.[0] ?? '  '
+  const trailingNewline = source.endsWith('\n') ? '\n' : ''
+
+  packageData.dependencies = {
+    ...packageData.dependencies,
+    ...dependencies,
+  }
+
+  await writeFile(
+    packagePath,
+    JSON.stringify(packageData, null, indentation) + trailingNewline
+  )
+}
diff --git a/lib/helpers/add-package-dependencies.test.js b/lib/helpers/add-package-dependencies.test.js
new file mode 100644
index 0000000..bc41b74
--- /dev/null
+++ b/lib/helpers/add-package-dependencies.test.js
@@ -0,0 +1,38 @@
+import assert from 'node:assert/strict'
+import { mkdtemp, readFile, rm, writeFile } from 'node:fs/promises'
+import { tmpdir } from 'node:os'
+import path from 'node:path'
+import { test } from 'node:test'
+import { addPackageDependencies } from './add-package-dependencies.js'
+
+test('adds dependencies while preserving unrelated package metadata', async (t) => {
+  const directory = await mkdtemp(path.join(tmpdir(), 'domstack-package-'))
+  const packagePath = path.join(directory, 'package.json')
+  t.after(() => rm(directory, { recursive: true, force: true }))
+
+  await writeFile(packagePath, '\uFEFF' + JSON.stringify({
+    name: 'example',
+    private: true,
+    scripts: { test: 'node --test' },
+    dependencies: { existing: '^1.0.0', replace: '^1.0.0' },
+  }, null, '\t') + '\n')
+
+  await addPackageDependencies(packagePath, {
+    added: '^2.0.0',
+    replace: '^2.0.0',
+  })
+
+  const source = await readFile(packagePath, 'utf8')
+  assert.ok(source.endsWith('\n'))
+  assert.match(source, /^\{\n\t"name"/)
+  assert.deepEqual(JSON.parse(source), {
+    name: 'example',
+    private: true,
+    scripts: { test: 'node --test' },
+    dependencies: {
+      existing: '^1.0.0',
+      replace: '^2.0.0',
+      added: '^2.0.0',
+    },
+  })
+})
diff --git a/package.json b/package.json
index a370717..45b1afb 100644
--- a/package.json
+++ b/package.json
@@ -85,9 +85,7 @@
     "pino": "^10.3.1",
     "pino-pretty": "^13.1.3",
     "pretty": "^2.0.0",
-    "pretty-tree": "^1.0.0",
-    "read-pkg": "^10.0.0",
-    "write-package": "^7.0.1"
+    "pretty-tree": "^1.0.0"
   },
   "devDependencies": {
     "@playwright/test": "^1.61.1",