diff --git a/package.json b/package.json
index b89e59e11..bab1eb55c 100644
--- a/package.json
+++ b/package.json
@@ -265,6 +265,7 @@
     "fs-extra": "^11.1.0",
     "gh-pages": "^6.0.0",
     "globby": "^14.0.0",
+    "is-plain-obj": "^4.1.0",
     "kleur": "^4.1.4",
     "lilconfig": "^3.0.0",
     "listr": "~0.14.2",
@@ -275,7 +276,6 @@
     "mdast-util-gfm-table": "^2.0.0",
     "mdast-util-gfm-task-list-item": "^2.0.0",
     "mdast-util-to-markdown": "^2.0.0",
-    "merge-options": "^3.0.4",
     "micromark-extension-gfm": "^3.0.0",
     "micromark-extension-gfm-footnote": "^2.0.0",
     "micromark-extension-gfm-strikethrough": "^2.0.0",
@@ -292,7 +292,6 @@
     "path": "^0.12.7",
     "playwright-test": "^14.0.0",
     "polka": "^0.5.2",
-    "premove": "^4.0.0",
     "prompt": "^1.2.2",
     "proper-lockfile": "^4.1.2",
     "react-native-test-runner": "^5.0.0",
diff --git a/src/build/index.js b/src/build/index.js
index 1f6c458fe..54537dfbb 100644
--- a/src/build/index.js
+++ b/src/build/index.js
@@ -6,8 +6,8 @@ import esbuild from 'esbuild'
 import { execa } from 'execa'
 import fs from 'fs-extra'
 import Listr from 'listr'
-import merge from 'merge-options'
 import pascalcase from 'pascalcase'
+import merge from '../utils/merge-options.js'
 import { gzipSize, pkg, hasTsconfig, isTypescript, fromRoot, paths, findBinary } from './../utils.js'
 
 const defaults = merge.bind({
diff --git a/src/check-project/manifests/typed-cjs.js b/src/check-project/manifests/typed-cjs.js
index e3c746094..5a90ace9e 100644
--- a/src/check-project/manifests/typed-cjs.js
+++ b/src/check-project/manifests/typed-cjs.js
@@ -1,4 +1,4 @@
-import mergeOptions from 'merge-options'
+import mergeOptions from '../../utils/merge-options.js'
 import { semanticReleaseConfig } from '../semantic-release-config.js'
 import {
   sortFields,
diff --git a/src/check-project/manifests/typed-esm.js b/src/check-project/manifests/typed-esm.js
index be0f14880..d8aed8423 100644
--- a/src/check-project/manifests/typed-esm.js
+++ b/src/check-project/manifests/typed-esm.js
@@ -1,4 +1,4 @@
-import mergeOptions from 'merge-options'
+import mergeOptions from '../../utils/merge-options.js'
 import { semanticReleaseConfig } from '../semantic-release-config.js'
 import {
   sortFields,
diff --git a/src/check-project/manifests/typescript.js b/src/check-project/manifests/typescript.js
index 79e90af99..671a8e9fc 100644
--- a/src/check-project/manifests/typescript.js
+++ b/src/check-project/manifests/typescript.js
@@ -1,6 +1,6 @@
 /* eslint-disable no-console */
 
-import mergeOptions from 'merge-options'
+import mergeOptions from '../../utils/merge-options.js'
 import { semanticReleaseConfig } from '../semantic-release-config.js'
 import {
   sortFields,
diff --git a/src/check-project/manifests/untyped-cjs.js b/src/check-project/manifests/untyped-cjs.js
index 34b02de54..84b3daf3a 100644
--- a/src/check-project/manifests/untyped-cjs.js
+++ b/src/check-project/manifests/untyped-cjs.js
@@ -1,4 +1,4 @@
-import mergeOptions from 'merge-options'
+import mergeOptions from '../../utils/merge-options.js'
 import { semanticReleaseConfig } from '../semantic-release-config.js'
 import {
   sortFields,
diff --git a/src/check-project/manifests/untyped-esm.js b/src/check-project/manifests/untyped-esm.js
index 628107f3c..4a9dd4693 100644
--- a/src/check-project/manifests/untyped-esm.js
+++ b/src/check-project/manifests/untyped-esm.js
@@ -1,4 +1,4 @@
-import mergeOptions from 'merge-options'
+import mergeOptions from '../../utils/merge-options.js'
 import { semanticReleaseConfig } from '../semantic-release-config.js'
 import {
   sortFields,
diff --git a/src/cmds/check.js b/src/cmds/check.js
index 09e17afe2..f8db9785d 100644
--- a/src/cmds/check.js
+++ b/src/cmds/check.js
@@ -6,9 +6,9 @@ import path from 'path'
 import esbuild from 'esbuild'
 import fs from 'fs-extra'
 import kleur from 'kleur'
-import merge from 'merge-options'
 import { readPackageUp } from 'read-pkg-up'
 import { loadUserConfig } from '../config/user.js'
+import merge from '../utils/merge-options.js'
 import { fromRoot, paths } from '../utils.js'
 
 const defaults = merge.bind({
diff --git a/src/config/user.js b/src/config/user.js
index 3c5f5b023..0f8d0cc83 100644
--- a/src/config/user.js
+++ b/src/config/user.js
@@ -2,7 +2,7 @@
 
 import { pathToFileURL } from 'url'
 import { lilconfig } from 'lilconfig'
-import merge from 'merge-options'
+import merge from '../utils/merge-options.js'
 import { isTypescript } from '../utils.js'
 
 /**
diff --git a/src/docs.js b/src/docs.js
index 5a0dc0ebb..e7b8caa75 100644
--- a/src/docs.js
+++ b/src/docs.js
@@ -5,7 +5,6 @@ import { execa } from 'execa'
 import fs from 'fs-extra'
 import ghPages from 'gh-pages'
 import Listr from 'listr'
-import { premove as del } from 'premove/sync'
 import { hasTsconfig, fromAegir, fromRoot, readJson, isMonorepoParent } from './utils.js'
 
 const publishPages = promisify(ghPages.publish)
@@ -153,7 +152,11 @@ const tasks = new Listr(
        * @param {GlobalOptions & DocsOptions} ctx
        */
       task: (ctx) => {
-        del(ctx.directory)
+        if (fs.existsSync(ctx.directory)) {
+          fs.rmdirSync(ctx.directory, {
+            recursive: true
+          })
+        }
       }
     },
     {
diff --git a/src/document-check.js b/src/document-check.js
index eba44ed36..1885f8acd 100644
--- a/src/document-check.js
+++ b/src/document-check.js
@@ -4,8 +4,8 @@ import fs from 'fs-extra'
 import { globby } from 'globby'
 import kleur from 'kleur'
 import Listr from 'listr'
-import merge from 'merge-options'
 import { compileSnippets } from 'typescript-docs-verifier'
+import merge from './utils/merge-options.js'
 import { formatCode, formatError, fromRoot, hasTsconfig, readJson } from './utils.js'
 /**
  * @typedef {import("./types").GlobalOptions} GlobalOptions
diff --git a/src/lint.js b/src/lint.js
index c46e84268..f873ab283 100644
--- a/src/lint.js
+++ b/src/lint.js
@@ -8,7 +8,7 @@ import fs from 'fs-extra'
 import { globby } from 'globby'
 import kleur from 'kleur'
 import Listr from 'listr'
-import merge from 'merge-options'
+import merge from './utils/merge-options.js'
 import { fromRoot, readJson, hasTsconfig, isTypescript, findBinary, hasDocCheck } from './utils.js'
 
 const __dirname = path.dirname(fileURLToPath(import.meta.url))
diff --git a/src/test/browser.js b/src/test/browser.js
index ac9a870c0..9302c124f 100644
--- a/src/test/browser.js
+++ b/src/test/browser.js
@@ -1,7 +1,7 @@
 import path from 'path'
 import { fileURLToPath } from 'url'
 import { execa } from 'execa'
-import merge from 'merge-options'
+import merge from '../utils/merge-options.js'
 import { fromAegir, findBinary } from '../utils.js'
 
 const __dirname = path.dirname(fileURLToPath(import.meta.url))
diff --git a/src/test/electron.js b/src/test/electron.js
index f6670c2dd..341805730 100644
--- a/src/test/electron.js
+++ b/src/test/electron.js
@@ -1,7 +1,7 @@
 import path from 'path'
 import { fileURLToPath } from 'url'
 import { execa } from 'execa'
-import merge from 'merge-options'
+import merge from '../utils/merge-options.js'
 import { getElectron, findBinary } from '../utils.js'
 
 const __dirname = path.dirname(fileURLToPath(import.meta.url))
diff --git a/src/test/node.js b/src/test/node.js
index d29e7a2b7..378ec859f 100644
--- a/src/test/node.js
+++ b/src/test/node.js
@@ -3,8 +3,8 @@ import path from 'path'
 import { fileURLToPath } from 'url'
 import { execa } from 'execa'
 import kleur from 'kleur'
-import merge from 'merge-options'
 import * as tempy from 'tempy'
+import merge from '../utils/merge-options.js'
 
 const __dirname = path.dirname(fileURLToPath(import.meta.url))
 
diff --git a/src/test/react-native.js b/src/test/react-native.js
index a06dca886..7799ac8b7 100644
--- a/src/test/react-native.js
+++ b/src/test/react-native.js
@@ -1,7 +1,7 @@
 import path from 'path'
 import { fileURLToPath } from 'url'
 import { execa } from 'execa'
-import merge from 'merge-options'
+import merge from '../utils/merge-options.js'
 
 const __dirname = path.dirname(fileURLToPath(import.meta.url))
 
diff --git a/src/utils/merge-options.js b/src/utils/merge-options.js
new file mode 100644
index 000000000..5669cd0ec
--- /dev/null
+++ b/src/utils/merge-options.js
@@ -0,0 +1,199 @@
+import isOptionObject from 'is-plain-obj'
+
+const { hasOwnProperty } = Object.prototype
+const { propertyIsEnumerable } = Object
+/**
+ * @param {*} object
+ * @param {string | symbol | number} name
+ * @param {any} value
+ */
+const defineProperty = (object, name, value) => Object.defineProperty(object, name, {
+  value,
+  writable: true,
+  enumerable: true,
+  configurable: true
+})
+
+const globalThis = this
+const defaultMergeOptions = {
+  concatArrays: false,
+  ignoreUndefined: false
+}
+
+/**
+ * @param {*} value
+ * @returns {Array<string | symbol>}
+ */
+const getEnumerableOwnPropertyKeys = value => {
+  /** @type {Array<string | symbol>} */
+  const keys = []
+
+  for (const key in value) {
+    if (hasOwnProperty.call(value, key)) {
+      keys.push(key)
+    }
+  }
+
+  /* istanbul ignore else  */
+  if (Object.getOwnPropertySymbols) {
+    const symbols = Object.getOwnPropertySymbols(value)
+
+    for (const symbol of symbols) {
+      if (propertyIsEnumerable.call(value, symbol)) {
+        keys.push(symbol)
+      }
+    }
+  }
+
+  return keys
+}
+
+/**
+ * @param {*} value
+ */
+function clone (value) {
+  if (Array.isArray(value)) {
+    return cloneArray(value)
+  }
+
+  if (isOptionObject(value)) {
+    return cloneOptionObject(value)
+  }
+
+  return value
+}
+
+/**
+ * @param {*} array
+ */
+function cloneArray (array) {
+  const result = array.slice(0, 0)
+
+  getEnumerableOwnPropertyKeys(array).forEach(key => {
+    defineProperty(result, key, clone(array[key]))
+  })
+
+  return result
+}
+
+/**
+ * @param {*} object
+ */
+function cloneOptionObject (object) {
+  const result = Object.getPrototypeOf(object) === null ? Object.create(null) : {}
+
+  getEnumerableOwnPropertyKeys(object).forEach(key => {
+    defineProperty(result, key, clone(object[key]))
+  })
+
+  return result
+}
+
+/**
+ * @param {*} merged - already cloned
+ * @param {*} source - something to merge
+ * @param {Array<string | symbol>} keys - keys to merge
+ * @param {object} config - Config Object
+ * @param {boolean} [config.ignoreUndefined] - whether to ignore undefined values
+ * @param {boolean} [config.concatArrays] - Config Object
+ * @returns {*} cloned Object
+ */
+const mergeKeys = (merged, source, keys, config) => {
+  keys.forEach(key => {
+    if (typeof source[key] === 'undefined' && config.ignoreUndefined) {
+      return
+    }
+
+    // Do not recurse into prototype chain of merged
+    if (key in merged && merged[key] !== Object.getPrototypeOf(merged)) {
+      defineProperty(merged, key, merge(merged[key], source[key], config))
+    } else {
+      defineProperty(merged, key, clone(source[key]))
+    }
+  })
+
+  return merged
+}
+
+/**
+ * @param {*} merged - already cloned
+ * @param {*} source - something to merge
+ * @param {object} config - Config Object
+ * @returns {*} cloned Object
+ *
+ * see [Array.prototype.concat ( ...arguments )](http://www.ecma-international.org/ecma-262/6.0/#sec-array.prototype.concat)
+ */
+const concatArrays = (merged, source, config) => {
+  let result = merged.slice(0, 0)
+  let resultIndex = 0;
+
+  [merged, source].forEach(array => {
+    /** @type {Array<string | symbol>} */
+    const indices = []
+
+    // `result.concat(array)` with cloning
+    for (let k = 0; k < array.length; k++) {
+      if (!hasOwnProperty.call(array, k)) {
+        continue
+      }
+
+      indices.push(String(k))
+
+      if (array === merged) {
+        // Already cloned
+        defineProperty(result, resultIndex++, array[k])
+      } else {
+        defineProperty(result, resultIndex++, clone(array[k]))
+      }
+    }
+
+    // Merge non-index keys
+    result = mergeKeys(result, array, getEnumerableOwnPropertyKeys(array).filter(key => !indices.includes(key)), config)
+  })
+
+  return result
+}
+
+/**
+ * @param {*} merged - already cloned
+ * @param {*} source - something to merge
+ * @param {object} config - Config Object
+ * @param {boolean} [config.concatArrays] - Config Object
+ * @returns {*} cloned Object
+ */
+function merge (merged, source, config) {
+  if (config.concatArrays && Array.isArray(merged) && Array.isArray(source)) {
+    return concatArrays(merged, source, config)
+  }
+
+  if (!isOptionObject(source) || !isOptionObject(merged)) {
+    return clone(source)
+  }
+
+  return mergeKeys(merged, source, getEnumerableOwnPropertyKeys(source), config)
+}
+
+/**
+ * @param  {...any} options
+ */
+function mergeOptions (...options) {
+  // @ts-expect-error this is shadowed by the container
+  const config = merge(clone(defaultMergeOptions), (this !== globalThis && this) || {}, defaultMergeOptions)
+  let merged = { _: {} }
+
+  for (const option of options) {
+    if (option === undefined) {
+      continue
+    }
+
+    if (!isOptionObject(option)) {
+      throw new TypeError('`' + option + '` is not an Option Object')
+    }
+
+    merged = merge(merged, { _: option }, config)
+  }
+
+  return merged._
+}
+
+export default mergeOptions
diff --git a/test/lint.js b/test/lint.js
index 8c51a7916..008422d17 100644
--- a/test/lint.js
+++ b/test/lint.js
@@ -1,9 +1,8 @@
 /* eslint-env mocha */
 
-import fs from 'fs'
 import path from 'path'
 import { fileURLToPath } from 'url'
-import { premove as del } from 'premove/sync'
+import fs from 'fs-extra'
 import { loadUserConfig } from '../src/config/user.js'
 import lint from '../src/lint.js'
 import { expect } from '../utils/chai.js'
@@ -75,7 +74,11 @@ describe('lint', () => {
 
   after(() => {
     process.chdir(cwd)
-    del(TEMP_FOLDER)
+    if (fs.existsSync(TEMP_FOLDER)) {
+      fs.rmdirSync(TEMP_FOLDER, {
+        recursive: true
+      })
+    }
   })
 
   it('lint itself (aegir)', async function () {