Nix

Rationale

We use the Nix ecosystem for building and deploying all of our components.

Alternatives

No alternatives.

Usage

We use nix as the underlying package manager that serves all of Fluid Attacks' software

Guidelines

Installing Nix

Please follow the steps in the official Nix Download Page.

If everything goes well, you should be able to run:

nix --version

Troubleshooting

If, during the installation, you get an error along the following lines:

It seems the build group nixbld already exists, but
with the UID 998. This script can’t really handle
that right now, so I’m going to give up.

You can fix this by editing this script and changing the
NIX_BUILD_GROUP_ID variable near the top to from 30000
to 998 and re-run.

You may have a conflicting previous install. In order to fix this:

Remove the Nix directories as per the Nix uninstall step
Delete the users created by Nix. In Bash, you can use the command,
```
compgen -u
```
to list all users. The ones you are interested in are named along the lines of nixbld${number}. You can delete them, in Linux, using,
```
sudo userdel ${nixUser}
```
Then, when all users are deleted, you can delete the Nix group,
```
sudo groupdel nixbld
```
Finally, attempt to install Nix once again, using the multi-user configuration