> For the complete documentation index, see [llms.txt](https://www.build3.network/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://www.build3.network/developers/notes-about-substrate/runtime.md).

# Runtime

There's so much ground to cover, but let's focus on runtime because that's where most of your time: how the runtime works and is constructed.

The `runtime` is built using `FRAME Pallets` as a plugin system. Between the `Pallets` and the `Runtime` crates, we have been able to create a working prototype of proof of supervision applicable to the construction industry.

Explore our [work in progress use cases](broken://pages/AOb1Z6wdzZgzqQSNAnwT) for build3 if you want a quick look at what is being proposed and how we plan to use the technology.