New North American based Guix Substitute Server, cuirass.genenetwork.org Now Available

["Collin J. Doering" <collin@rekahsoft.ca>]

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Dear Guix Community,

I am excited to announce that Guix substitutes (for x86_64) are now available in North America, thanks to the generous contribution of server hardware and infrastructure from GeneNetwork.org.

This new server enhances the availability and redundancy of Guix substitutes, ensuring a more robust and reliable experience for users in North America.

We will be posting a detailed blog article about the setup of the build farm in the coming weeks, but the Guix system configuration and notes about its setup can be found at https://git.rekahsoft.ca/rekahsoft/guix-north-america/. Stay tuned for more information!

# Using Substitutes from cuirass.genenetwork.org

If you're using Guix System, you can use the cuirass.genenetwork.org substitute server completing the following:

1. Add `https://cuirass.genenetwork.org` to the list of substitute servers (using the `substitute-urls` field of `guix-configuration` passed to the `guix-daemon` service).
2. Adjust guix-daemon ACLs to include the following public key (using the `authorized-keys` field of `guix-configuration` passed to the `guix-daemon` service).

```
(public-key 
 (ecc 
  (curve Ed25519)
  (q #9578AD6CDB23BA51F9C4185D5D5A32A7EEB47ACDD55F1CCB8CEE4E0570FBF961#)
  )
)
```

In the future, we hope to work with Guix maintainers to include this substitute server as one of the provided Guix System defaults.

When using Guix on a foreign distribution, you'll need to do the following to enable substitutes from cuirass.genenetwork.org:

1. Add the substitute url using the `--substitute-urls` option to guix-daemon. Assuming your foreign distribution uses systemd, this can be done using the following.

```
sudo systemctl edit --full guix-daemon
sudo systemctl restart guix-daemon.service
```

2. Add the public key for cuirass.genenetwork.org to the guix-daemon ACLs.

```
guix archive --authorize < /root/.config/guix/current/share/guix/cuirass.genenetwork.org.pub
```

If you want to just use ci.guix.gnu.org, or cuirass.genenetwork.org for that matter, you'll need to adjust the substitute URLs configuration for the guix-daemon to just refer to the substitute servers you want to use.

Best regards,

PS: thanks for the support Arun Isaac and Pjotr Prins!

-- 
Collin J. Doering

http://rekahsoft.ca
http://blog.rekahsoft.ca
http://git.rekahsoft.ca

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