diff --git a/lib/base-command.js b/lib/base-command.js
index a5fdadb60870e..cfaa0bb394460 100644
--- a/lib/base-command.js
+++ b/lib/base-command.js
@@ -1,9 +1,3 @@
-// Base class for npm commands
-
-const { relative } = require('path')
-
-const { definitions } = require('@npmcli/config/lib/definitions')
-const { aliases: cmdAliases } = require('./utils/cmd-list')
 const { log, output } = require('proc-log')
 
 class BaseCommand {
@@ -18,6 +12,8 @@ class BaseCommand {
   // this is a static so that we can read from it without instantiating a command
   // which would require loading the config
   static get describeUsage () {
+    const { definitions } = require('@npmcli/config/lib/definitions')
+    const { aliases: cmdAliases } = require('./utils/cmd-list')
     const seenExclusive = new Set()
     const wrapWidth = 80
     const { description, usage = [''], name, params } = this
@@ -161,6 +157,8 @@ class BaseCommand {
   }
 
   async setWorkspaces () {
+    const { relative } = require('node:path')
+
     const includeWorkspaceRoot = this.isArboristCmd
       ? false
       : this.npm.config.get('include-workspace-root')
diff --git a/lib/cli.js b/lib/cli.js
index c85ecb65a7005..84d5471ad5e91 100644
--- a/lib/cli.js
+++ b/lib/cli.js
@@ -1,4 +1,4 @@
 const validateEngines = require('./es6/validate-engines.js')
-const cliEntry = require('path').resolve(__dirname, 'cli-entry.js')
+const cliEntry = require('node:path').resolve(__dirname, 'cli-entry.js')
 
 module.exports = (process) => validateEngines(process, () => require(cliEntry))
diff --git a/lib/commands/config.js b/lib/commands/config.js
index b1273120cf9ee..21faa8838c593 100644
--- a/lib/commands/config.js
+++ b/lib/commands/config.js
@@ -1,8 +1,7 @@
-const { mkdir, readFile, writeFile } = require('fs/promises')
-const { dirname, resolve } = require('path')
-const { spawn } = require('child_process')
-const { EOL } = require('os')
-const ini = require('ini')
+const { mkdir, readFile, writeFile } = require('node:fs/promises')
+const { dirname, resolve } = require('node:path')
+const { spawn } = require('node:child_process')
+const { EOL } = require('node:os')
 const localeCompare = require('@isaacs/string-locale-compare')('en')
 const pkgJson = require('@npmcli/package-json')
 const { defaults, definitions } = require('@npmcli/config/lib/definitions')
@@ -201,6 +200,7 @@ class Config extends BaseCommand {
   }
 
   async edit () {
+    const ini = require('ini')
     const e = this.npm.flatOptions.editor
     const where = this.npm.flatOptions.location
     const file = this.npm.config.data.get(where).source
diff --git a/lib/commands/help-search.js b/lib/commands/help-search.js
index e71ffe4aee288..8821d932525dc 100644
--- a/lib/commands/help-search.js
+++ b/lib/commands/help-search.js
@@ -1,5 +1,5 @@
-const { readFile } = require('fs/promises')
-const path = require('path')
+const { readFile } = require('node:fs/promises')
+const path = require('node:path')
 const { glob } = require('glob')
 const { output } = require('proc-log')
 const BaseCommand = require('../base-command.js')
diff --git a/lib/commands/install.js b/lib/commands/install.js
index 13883499c13f0..6573b4d65555d 100644
--- a/lib/commands/install.js
+++ b/lib/commands/install.js
@@ -1,13 +1,10 @@
-/* eslint-disable camelcase */
-const fs = require('fs')
-const util = require('util')
-const readdir = util.promisify(fs.readdir)
-const reifyFinish = require('../utils/reify-finish.js')
+const { readdir } = require('node:fs/promises')
+const { resolve, join } = require('node:path')
 const { log } = require('proc-log')
-const { resolve, join } = require('path')
 const runScript = require('@npmcli/run-script')
 const pacote = require('pacote')
 const checks = require('npm-install-checks')
+const reifyFinish = require('../utils/reify-finish.js')
 
 const ArboristWorkspaceCmd = require('../arborist-cmd.js')
 class Install extends ArboristWorkspaceCmd {
diff --git a/lib/commands/query.js b/lib/commands/query.js
index 319d3ee0cc293..a25180d6c38d8 100644
--- a/lib/commands/query.js
+++ b/lib/commands/query.js
@@ -1,6 +1,6 @@
 'use strict'
 
-const { resolve } = require('path')
+const { resolve } = require('node:path')
 const BaseCommand = require('../base-command.js')
 const { log, output } = require('proc-log')
 
diff --git a/lib/commands/run-script.js b/lib/commands/run-script.js
index d86f9b7326e3b..34c0b00fe95b5 100644
--- a/lib/commands/run-script.js
+++ b/lib/commands/run-script.js
@@ -1,20 +1,5 @@
-const runScript = require('@npmcli/run-script')
-const { isServerPackage } = runScript
-const pkgJson = require('@npmcli/package-json')
 const { log, output } = require('proc-log')
-const didYouMean = require('../utils/did-you-mean.js')
-const { isWindowsShell } = require('../utils/is-windows.js')
-
-const cmdList = [
-  'publish',
-  'install',
-  'uninstall',
-  'test',
-  'stop',
-  'start',
-  'restart',
-  'version',
-].reduce((l, p) => l.concat(['pre' + p, p, 'post' + p]), [])
+const pkgJson = require('@npmcli/package-json')
 
 const BaseCommand = require('../base-command.js')
 class RunScript extends BaseCommand {
@@ -64,9 +49,7 @@ class RunScript extends BaseCommand {
   }
 
   async run ([event, ...args], { path = this.npm.localPrefix, pkg } = {}) {
-    // this || undefined is because runScript will be unhappy with the default
-    // null value
-    const scriptShell = this.npm.config.get('script-shell') || undefined
+    const runScript = require('@npmcli/run-script')
 
     if (!pkg) {
       const { content } = await pkgJson.normalize(path)
@@ -77,6 +60,7 @@ class RunScript extends BaseCommand {
     if (event === 'restart' && !scripts.restart) {
       scripts.restart = 'npm stop --if-present && npm start'
     } else if (event === 'env' && !scripts.env) {
+      const { isWindowsShell } = require('../utils/is-windows.js')
       scripts.env = isWindowsShell ? 'SET' : 'env'
     }
 
@@ -84,12 +68,13 @@ class RunScript extends BaseCommand {
 
     if (
       !Object.prototype.hasOwnProperty.call(scripts, event) &&
-      !(event === 'start' && (await isServerPackage(path)))
+      !(event === 'start' && (await runScript.isServerPackage(path)))
     ) {
       if (this.npm.config.get('if-present')) {
         return
       }
 
+      const didYouMean = require('../utils/did-you-mean.js')
       const suggestions = await didYouMean(path, event)
       throw new Error(
         `Missing script: "${event}"${suggestions}\n\nTo see a list of scripts, run:\n  npm run`
@@ -111,7 +96,9 @@ class RunScript extends BaseCommand {
     for (const [ev, evArgs] of events) {
       await runScript({
         path,
-        scriptShell,
+        // this || undefined is because runScript will be unhappy with the
+        // default null value
+        scriptShell: this.npm.config.get('script-shell') || undefined,
         stdio: 'inherit',
         pkg,
         event: ev,
@@ -147,6 +134,17 @@ class RunScript extends BaseCommand {
       return allScripts
     }
 
+    // TODO this is missing things like prepare, prepublishOnly, and dependencies
+    const cmdList = [
+      'preinstall', 'install', 'postinstall',
+      'prepublish', 'publish', 'postpublish',
+      'prerestart', 'restart', 'postrestart',
+      'prestart', 'start', 'poststart',
+      'prestop', 'stop', 'poststop',
+      'pretest', 'test', 'posttest',
+      'preuninstall', 'uninstall', 'postuninstall',
+      'preversion', 'version', 'postversion',
+    ]
     const indent = '\n    '
     const prefix = '  '
     const cmds = []
diff --git a/lib/commands/version.js b/lib/commands/version.js
index 9776b70240519..376cd88480d65 100644
--- a/lib/commands/version.js
+++ b/lib/commands/version.js
@@ -1,10 +1,7 @@
-const libnpmversion = require('libnpmversion')
-const { resolve } = require('path')
-const { promisify } = require('util')
+const { resolve } = require('node:path')
+const { readFile } = require('node:fs/promises')
 const { output } = require('proc-log')
-const readFile = promisify(require('fs').readFile)
 
-const updateWorkspaces = require('../workspaces/update-workspaces.js')
 const BaseCommand = require('../base-command.js')
 
 class Version extends BaseCommand {
@@ -74,6 +71,7 @@ class Version extends BaseCommand {
   }
 
   async change (args) {
+    const libnpmversion = require('libnpmversion')
     const prefix = this.npm.config.get('tag-version-prefix')
     const version = await libnpmversion(args[0], {
       ...this.npm.flatOptions,
@@ -83,20 +81,33 @@ class Version extends BaseCommand {
   }
 
   async changeWorkspaces (args) {
+    const updateWorkspaces = require('../workspaces/update-workspaces.js')
+    const libnpmversion = require('libnpmversion')
     const prefix = this.npm.config.get('tag-version-prefix')
+    const {
+      config,
+      flatOptions,
+      localPrefix,
+    } = this.npm
     await this.setWorkspaces()
     const updatedWorkspaces = []
     for (const [name, path] of this.workspaces) {
       output.standard(name)
       const version = await libnpmversion(args[0], {
-        ...this.npm.flatOptions,
+        ...flatOptions,
         'git-tag-version': false,
         path,
       })
       updatedWorkspaces.push(name)
       output.standard(`${prefix}${version}`)
     }
-    return this.update(updatedWorkspaces)
+    return updateWorkspaces({
+      config,
+      flatOptions,
+      localPrefix,
+      npm: this.npm,
+      workspaces: updatedWorkspaces,
+    })
   }
 
   async list (results = {}) {
@@ -136,22 +147,6 @@ class Version extends BaseCommand {
     }
     return this.list(results)
   }
-
-  async update (workspaces) {
-    const {
-      config,
-      flatOptions,
-      localPrefix,
-    } = this.npm
-
-    await updateWorkspaces({
-      config,
-      flatOptions,
-      localPrefix,
-      npm: this.npm,
-      workspaces,
-    })
-  }
 }
 
 module.exports = Version
diff --git a/lib/npm.js b/lib/npm.js
index 40be04e8b820b..509c2fa2abd36 100644
--- a/lib/npm.js
+++ b/lib/npm.js
@@ -1,7 +1,7 @@
-const { resolve, dirname, join } = require('path')
+const { resolve, dirname, join } = require('node:path')
 const Config = require('@npmcli/config')
 const which = require('which')
-const fs = require('fs/promises')
+const fs = require('node:fs/promises')
 
 // Patch the global fs module here at the app level
 require('graceful-fs').gracefulify(require('fs'))
diff --git a/lib/package-url-cmd.js b/lib/package-url-cmd.js
index dc6b6f7c0b512..c81b933f69254 100644
--- a/lib/package-url-cmd.js
+++ b/lib/package-url-cmd.js
@@ -1,7 +1,6 @@
 // Base command for opening urls from a package manifest (bugs, docs, repo)
 
 const pacote = require('pacote')
-const hostedGitInfo = require('hosted-git-info')
 
 const openUrl = require('./utils/open-url.js')
 const { log } = require('proc-log')
@@ -52,6 +51,7 @@ class PackageUrlCommand extends BaseCommand {
   // repository (if a string) or repository.url (if an object) returns null
   // if it's not a valid repo, or not a known hosted repo
   hostedFromMani (mani) {
+    const hostedGitInfo = require('hosted-git-info')
     const r = mani.repository
     const rurl = !r ? null
       : typeof r === 'string' ? r
diff --git a/lib/utils/error-message.js b/lib/utils/error-message.js
index c27b8a3447957..5d25734f08ad1 100644
--- a/lib/utils/error-message.js
+++ b/lib/utils/error-message.js
@@ -1,7 +1,6 @@
-const { format } = require('util')
-const { resolve } = require('path')
+const { format } = require('node:util')
+const { resolve } = require('node:path')
 const { redactLog: replaceInfo } = require('@npmcli/redact')
-const { report } = require('./explain-eresolve.js')
 const { log } = require('proc-log')
 
 const messageText = msg => msg.map(line => line.slice(1).join(' ')).join('\n')
@@ -32,6 +31,7 @@ const errorMessage = (er, npm) => {
 
   switch (er.code) {
     case 'ERESOLVE': {
+      const { report } = require('./explain-eresolve.js')
       short.push(['ERESOLVE', er.message])
       detail.push(['', ''])
       // XXX(display): error messages are logged so we use the logColor since that is based
@@ -77,9 +77,7 @@ const errorMessage = (er, npm) => {
         npm.config.loaded &&
         er.dest.startsWith(npm.config.get('cache'))
 
-      const { isWindows } = require('./is-windows.js')
-
-      if (!isWindows && (isCachePath || isCacheDest)) {
+      if (process.platform !== 'win32' && (isCachePath || isCacheDest)) {
         // user probably doesn't need this, but still add it to the debug log
         log.verbose(er.stack)
         short.push([
@@ -101,7 +99,7 @@ const errorMessage = (er, npm) => {
           '',
           [
             '\nThe operation was rejected by your operating system.',
-            isWindows
+            process.platform === 'win32'
               /* eslint-disable-next-line max-len */
               ? "It's possible that the file was already in use (by a text editor or antivirus),\n" +
                 'or that you lack permissions to access it.'
diff --git a/lib/utils/exit-handler.js b/lib/utils/exit-handler.js
index d63f7becc1cb9..76d7d6036e072 100644
--- a/lib/utils/exit-handler.js
+++ b/lib/utils/exit-handler.js
@@ -1,5 +1,3 @@
-const os = require('os')
-const fs = require('fs')
 const { log, output, time } = require('proc-log')
 const errorMessage = require('./error-message.js')
 const { redactLog: replaceInfo } = require('@npmcli/redact')
@@ -149,6 +147,8 @@ const exitHandler = err => {
       log.error('weird error', err)
       noLogMessage = true
     } else {
+      const os = require('node:os')
+      const fs = require('node:fs')
       if (!err.code) {
         const matchErrorCode = err.message.match(/^(?:Error: )?(E[A-Z]+)/)
         err.code = matchErrorCode && matchErrorCode[1]
diff --git a/lib/utils/explain-dep.js b/lib/utils/explain-dep.js
index d5d1a40d3403d..efe0ceece0882 100644
--- a/lib/utils/explain-dep.js
+++ b/lib/utils/explain-dep.js
@@ -1,4 +1,4 @@
-const { relative } = require('path')
+const { relative } = require('node:path')
 
 const explainNode = (node, depth, chalk) =>
   printNode(node, chalk) +
diff --git a/lib/utils/is-windows.js b/lib/utils/is-windows.js
index 57f6599b6ae19..63c5671d8400e 100644
--- a/lib/utils/is-windows.js
+++ b/lib/utils/is-windows.js
@@ -1,6 +1,4 @@
-const isWindows = process.platform === 'win32'
-const isWindowsShell = isWindows &&
+const isWindowsShell = (process.platform === 'win32') &&
   !/^MINGW(32|64)$/.test(process.env.MSYSTEM) && process.env.TERM !== 'cygwin'
 
-exports.isWindows = isWindows
 exports.isWindowsShell = isWindowsShell
diff --git a/lib/utils/timers.js b/lib/utils/timers.js
index 2b8da90afbae9..b27ddd588db06 100644
--- a/lib/utils/timers.js
+++ b/lib/utils/timers.js
@@ -1,5 +1,5 @@
-const EE = require('events')
-const fs = require('fs')
+const EE = require('node:events')
+const fs = require('node:fs')
 const { log, time } = require('proc-log')
 
 const INITIAL_TIMER = 'npm'
diff --git a/test/lib/utils/exit-handler.js b/test/lib/utils/exit-handler.js
index b82a8c6ab266a..da2fe3d6ce6ed 100644
--- a/test/lib/utils/exit-handler.js
+++ b/test/lib/utils/exit-handler.js
@@ -1,8 +1,8 @@
+const fs = require('node:fs')
+const { join, resolve } = require('node:path')
+const EventEmitter = require('node:events')
 const t = require('tap')
-const fs = require('fs')
 const fsMiniPass = require('fs-minipass')
-const { join, resolve } = require('path')
-const EventEmitter = require('events')
 const { output, time } = require('proc-log')
 const { load: loadMockNpm } = require('../../fixtures/mock-npm')
 const mockGlobals = require('@npmcli/mock-globals')
@@ -85,7 +85,7 @@ const mockExitHandler = async (t, { config, mocks, files, ...opts } = {}) => {
         },
       },
     }),
-    os: {
+    'node:os': {
       type: () => 'Foo',
       release: () => '1.0.0',
     },
@@ -367,7 +367,7 @@ t.test('no logs dir', async (t) => {
 t.test('timers fail to write', async (t) => {
   // we want the fs.writeFileSync in the Timers class to fail
   const mockTimers = tmock(t, '{LIB}/utils/timers.js', {
-    fs: {
+    'node:fs': {
       ...fs,
       writeFileSync: (file, ...rest) => {
         if (file.includes('LOGS_DIR')) {
@@ -450,7 +450,7 @@ t.test('files from error message with error', async (t) => {
       ['error-file.txt', '# error file content'],
     ],
     mocks: {
-      fs: {
+      'node:fs': {
         ...fs,
         writeFileSync: (dir) => {
           if (dir.includes('LOGS_DIR') && dir.endsWith('error-file.txt')) {