This is a starter project that can be used as a template for new sandboxes on the Codesandbox platform, a cloud-hosted in-browser IDE service that can be used for convenient and free remote development. I'd highly recommend using codesandbox, it's an excellent service that doesn't cost anything to get a very good deal out of.
The template will create a new cloud sandbox using Docker and Nix. These are both built-in features for cloud sandbox configuration, and fhis template provides a stripped-down setup for utilizing these tools. I'd like to evetually expand this a bit to have some built in bootstrapping options, but for now it's mainly just for my own convenience.
More details on the options for using nix and docker in codesandbox can be found in their documentation.