# Installation & Setup

Three software projects comprise Old Faithful:

* [Faithful](http://github.com/rpcpool/yellowstone-faithful), used for running the [RPC server ](/usage/rpc-server.md)and [creating the necessary indexes](/running-old-faithful/sourcing-data/generating-from-rocksdb/creating-indexes.md) for the RPC server
* [Radiance](http://github.com/rpcpool/radiance-triton-faithful/), used for processing[ warehouse nodes’ ledger  archives and producing CAR files](/running-old-faithful/sourcing-data/generating-from-rocksdb/warehouse-nodes.md)
* [PoH check car,](https://github.com/rpcpool/poh-check-car) used for [validating PoH of Old Faithful](/usage/validation.md) car files.

You can also [interact with Old Faithful through standard Filecoin tooling](/running-old-faithful/installation-and-setup/configuration-files/filecoin-v1-retrievals.md) like [Lassie](https://github.com/filecoin-project/lassie).

You only need the Faithful CLI if you are interested in working with the Faithful dataset and retrieving data.

## Building and installing Radiance

You will need to build Radiance with RocksDB support following the guide here:

<https://github.com/rpcpool/radiance-triton-faithful/blob/main/INSTALL.md>


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.old-faithful.net/running-old-faithful/installation-and-setup.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.