Reference: http://mars3d.cn/doc.html#start/download

Steps

• Create a new folder named packages.
• Copy the package you want to replace (using mars3d as an example here) from node_modules/mars3d/ to the packages/mars3d/ directory.
• Modify the mars3d package configuration in package.json to: "mars3d": "file:packages/mars3d",
• Delete node_modules and run npm install again to install dependencies.

Reference: https://vitejs.dev/guide/env-and-mode.html#env-variables

Introduction

In a project, you can configure different variables for production and development environments. This allows you to directly run build commands without modifying files when packaging.