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docs(holesky): fix Vouch config docs #538

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Dec 9, 2024
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29 changes: 26 additions & 3 deletions testnets/holesky/README.md
Original file line number Diff line number Diff line change
Expand Up @@ -1127,9 +1127,32 @@ the restart by following this steps when starting the Bolt sidecar:

## Vouch configuration

If you are using [Vouch](https://www.attestant.io/posts/introducing-vouch/) as validator client,
If you are using [Vouch](https://www.attestant.io/posts/introducing-vouch/) as your validator client,
you will need to tweak its configuration to make sure that it doesn't fetch blocks from PBS relays directly,
otherwise your validators might propose a block that does not adhere to the signed constraints from the Bolt sidecar.

In particular, you need to [disable external MEV relays](https://github.com/attestantio/vouch/blob/master/docs/blockrelay.md#without-mev-relays),
and make sure that your beacon node is pointing to the bolt sidecar.
In particular, you'll need to point any external MEV relays to the sidecar URL.
Doing so can be done by tweaking the following configuration files:

#### `execution_config.json`
```json
{
"version": 2,
"fee_recipient": "<FEE_RECIPIENT_ADDRESS>",
"relays": {"<BOLT_SIDECAR_CONSTRAINTS_API_URL>": {}},
"proposers": []
}
```

Then using this config in `vouch.yaml`:

```yml
...
blockrelay:
config:
url: file:///data/vouch/execution_config.json
...
```



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