# `fud`: The Calyx Build Tool
Reimplementation of the [fud][] compiler driver for Calyx.
### Installation
To install from source, run the following from `calyx/fud2`:
```
cargo install --path .
```
This will install the binary `fud2` to the default `cargo` binary location.
### Configuration
The minimal required configuration requires setting the `calyx.base` key so that `fud` knows where the Calyx compiler is. Open the configuration file by running:
```
fud edit-config
```
Add the path to the location of the Calyx compiler:
```toml
[calyx]
base = "<path to calyx repo>"
```
[fud]: https://docs.calyxir.org/fud/index.html