@digitalpersona/services/docs/maintain/index.md

DigitalPersona Web Access Services

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title: Library Maintenance
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# Library Maintainance

## Recommended Tools

The recommended **package manager** is [yarn](https://yarnpkg.com). While `npm` can  also beused, it occasionally breaks and requires deleting the whole `node_modules` folder and all lock files and reinstalling all packages.

The recommended **IDE** is [Microsoft VS Code](https://code.visualstudio.com/), with the folowing extensions:

* [NPM Support for VS Code](https://marketplace.visualstudio.com/items?itemName=eg2.vscode-npm-script)
* [TypeScript Linter](https://marketplace.visualstudio.com/items?itemName=ms-vscode.vscode-typescript-tslint-plugin)
* [Debugger for Chrome](https://marketplace.visualstudio.com/items?itemName=msjsdiag.debugger-for-chrome)
* [EditorConfig](https://marketplace.visualstudio.com/items?itemName=EditorConfig.EditorConfig)

The recommended **local NPM registry** is [Verdaccio](https://verdaccio.org/). It is very simple to install and configure, and it allows you to test publishing of NPM modules locally, without exposing your unfinished work to the whole world.

## Development Guides

* [Code](code.md)
* [Build](build.md)
* [Test](test.md)
* [Document](document.md)
* [Version](version.md)
* [Deploy](deploy.md)