The CaveView application is built from it's constituent ES6 modules and the three.js 3D library into a browser supported single script file using the rollup ES6 module bundler.
Follow the instructions for your platform to install node.js and git provided with those packages
Clone the CaveView.js repository from GitHub.
Run "npm install" to install all rqeuired npm packages.
To build uncompressed .js files, run "npm run build".
To build compressed .js files, run "npm run build-min".
The resultant scripts and associated resources (images, css and associated libraries) are assembled in the build/CaveView directory.