-`aarch64-unknown-linux-gnu`: 64-bit ARM processors (Raspberry Pi 4)
Additionally there is also a `-portable` suffix which indicates if the `portable` feature is used:
- Without `portable`: uses modern CPU instructions to provide the fastest signature verification times (may cause `Illegal instruction` error on older CPUs)
- With `portable`: approx. 20% slower, but should work on all modern 64-bit processors.
## Usage
Each binary is contained in a `.tar.gz` archive. For this example, lets use the
`v0.2.13` release and assume the user needs a portable `x86_64` binary.
> Whilst this example uses `v0.2.13` we recommend always using the latest release.
### Steps
1. Go to the [Releases](https://github.com/sigp/lighthouse/releases) page and
select the latest release.
1. Download the `lighthouse-${VERSION}-x86_64-unknown-linux-gnu-portable.tar.gz` binary.