diff --git a/.gitignore b/.gitignore
index 22f3a5c..9e0b378 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,7 +2,7 @@
 obj/
 *.taskkey
 bin/
-*/node_modules/
+node_modules
 typings.json
 */typings/
 deploy-gae-build-task/#task.json#
diff --git a/README.md b/README.md
index 2997441..26490ee 100644
--- a/README.md
+++ b/README.md
@@ -35,15 +35,17 @@ Questions can be asked on StackOverflow
   - [PowerShell][PowerShell]: Installed by default on modern windows platforms.
   - [Node.js][Node]: Download and install from the website.
   - [npm][npm]: Installed along with Node.js.
-  - [TypeScript][TypeScript]: Install with `npm install -g typescript`
-  - [tfx][tfs-cli]: The tfs cli. Install with `npm install -g tfx-cli`
-  - [mocha][mocha]: A JavaScript test runner. `npm install -g mocha`
-  - [ts-node]: Used by mocha to run TypeScript directly. `npm install -g ts-node`
-  - [nyc][nyc]: The Istanbul code coverage tool. Install with `npm install -g nyc`
+  - [MSBuild][https://docs.microsoft.com/en-us/visualstudio/msbuild/msbuild?view=vs-2019]: Installed with Visual Studio. Visual Studio does not add MSBuild to the path. You can make msbuild resolve in powershell by doing this:
+
+```  
+New-Alias vswhere "${env:ProgramFiles(x86)}\Microsoft Visual Studio\Installer\vswhere.exe"
+$msbuildPath = (ls ((vswhere -latest -property InstallationPath) + "\MSBuild\*\Bin\MSBuild.exe"))[0].FullName
+New-Alias msbuild $msbuildPath
+```
 
 ### Build Script
 
-Execute build script `./build/BuildExtension.ps1`. It will download needed
+Execute build script `npm run-script build`. It will download needed
 modules, build the common files and build tasks, and then package everything
 into `./bin/Google Cloud Tools.google-cloud-tfs-<version>.vsix`.
 
diff --git a/build/BuildExtension.ps1 b/build/BuildExtension.ps1
index 69086d3..c719893 100644
--- a/build/BuildExtension.ps1
+++ b/build/BuildExtension.ps1
@@ -1,18 +1,16 @@
-<##
- # Copyright 2017 Google Inc.
- # 
- # Licensed under the Apache License, Version 2.0 (the "License");
- # you may not use this file except in compliance with the License.
- # You may obtain a copy of the License at
- # 
- #     http://www.apache.org/licenses/LICENSE-2.0
- # 
- # Unless required by applicable law or agreed to in writing, software
- # distributed under the License is distributed on an "AS IS" BASIS,
- # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- # See the License for the specific language governing permissions and
- # limitations under the License.
- ##>
+# Copyright 2017 Google Inc.
+# 
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
 
 [CmdletBinding()]
 Param(
@@ -20,10 +18,14 @@ Param(
     [switch]$SkipInit,
     [switch]$SkipCompile,
     [switch]$SkipTest,
+    [switch]$SkipPackage,
     [string]$Publisher,
     [string]$Version
 )
+Set-StrictMode -Version 3.0
+$ErrorActionPreference = "Stop"
 
+$env:PATH = "$PSScriptRoot\..\node_modules\.bin\;${env:PATH}"
 
 pushd (Join-Path $MyInvocation.MyCommand.Path ..)
 $functionsModule = Import-Module ./BuildFunctions.psm1 -PassThru -Verbose:$false -ArgumentList $VerbosePreference
@@ -67,5 +69,4 @@ try {
     }
 } finally {
     popd
-    $functionsModule | Remove-Module -Verbose:$false
 }
diff --git a/build/BuildFunctions.psm1 b/build/BuildFunctions.psm1
index 9d07fbc..eb40268 100644
--- a/build/BuildFunctions.psm1
+++ b/build/BuildFunctions.psm1
@@ -1,22 +1,23 @@
-<##
- # Copyright 2017 Google Inc.
- # 
- # Licensed under the Apache License, Version 2.0 (the "License");
- # you may not use this file except in compliance with the License.
- # You may obtain a copy of the License at
- # 
- #     http://www.apache.org/licenses/LICENSE-2.0
- # 
- # Unless required by applicable law or agreed to in writing, software
- # distributed under the License is distributed on an "AS IS" BASIS,
- # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- # See the License for the specific language governing permissions and
- # limitations under the License.
- ##>
+# Copyright 2017 Google Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 Param(
     $VerbosePreference
 )
 
+$env:PATH = "$PSScriptRoot\..\node_modules\.bin\;${env:PATH}"
+
 function Initialize-All([string[]]$tasks) {
     Write-Host "Initialize modules and tasks"
     Initialize-PsTask "install-cloud-sdk-build-task"
@@ -77,8 +78,9 @@ function Invoke-MochaTest([string]$task, [string]$reporter) {
         if ($reporter) {
             $nycArgs += "--reporter", $reporter
         }
-        Write-Verbose "Running: nyc $nycArgs"
-        nyc $nycArgs
+
+        Write-Host "Running: nyc $nycArgs"
+        nyc @nycArgs
 
         if ($LASTEXITCODE -ne 0) {
             throw "mocha failed for task $task"
@@ -178,7 +180,7 @@ function Merge-ExtensionPackage([string] $publisher, [string] $version) {
         $tfxArgs += "--overrides-file", $overridesFile
     }
     Write-Verbose "Running: tfx $tfxArgs"
-    tfx $tfxArgs
+    & tfx @tfxArgs
     if ($overridesFile) {
         rm $overridesFile
     }
diff --git a/package.json b/package.json
new file mode 100644
index 0000000..4498033
--- /dev/null
+++ b/package.json
@@ -0,0 +1,28 @@
+{
+  "name": "GoogleCloudPlatform.google-cloud-tfs",
+  "version": "0.0.9",
+  "description": "A collection of TFS build tasks to run Google Cloud Platform tools.",
+  "license": "Apache-2.0",
+  "author": "Google Cloud Tools",
+  "repository": "https://github.com/GoogleCloudPlatform/google-cloud-tfs.git",
+  "main": "run.js",
+  "dependencies": {
+    "typescript": "^3.6.4"
+  },
+  "scripts": {
+    "build": "pwsh ./build/BuildExtension.ps1"
+  },
+  "devDependencies": {
+    "typescript": "^3.6.4",
+    "tfx-cli": "^0.7",
+    "ts-node": "^8.4.1",
+    "@types/mocha": "^2.2.40",
+    "@types/mockery": "^1.4.29",
+    "@types/node": "^7.0.6",
+    "@types/q": "0.0.32",
+    "mocha": "^3.2.0",
+    "mockery": "^2.1.0",
+    "typemoq": "^2.0.1",
+    "nyc": "^14.1.1"
+  }
+}