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## Rerun command-line tool
You can install the binary with `cargo install rerun-cli --locked --features nasm`.
**Note**: this requires the [`nasm`](https://github.com/netwide-assembler/nasm) CLI to be installed and available in your path.
Alternatively, you may skip enabling the `nasm` feature, but this may result in inferior video decoding performance.
The `rerun` CLI can act either as a server, a viewer, or both, depending on which options you use when you start it.
Running `rerun` with no arguments will start the viewer, waiting for an SDK to connect to it over gRPC.
Run `rerun --help` for more.
## What is Rerun?
- [Examples](https://github.com/rerun-io/rerun/tree/latest/examples/rust)
- [High-level docs](http://rerun.io/docs)
- [Rust API docs](https://docs.rs/rerun/)
- [Troubleshooting](https://www.rerun.io/docs/getting-started/troubleshooting)
### Running a web viewer
```sh
rerun --web-viewer path/to/file.rrd
```