At DotStark, we employ different frameworks for NodeJS development depending on the project requirements. Express.JS is a preferred choice by us to create web apps with vigorous routing and middleware capabilities. To build real-time applications, we choose Socket.io for WebSocket support. Alongside, Nest.JS is used to develop maintainable and scalable server-side apps. Apart from that, we also use Sails.JS and Koa.JS as per needs and preferences.