Embedding the Nix installer in the binary.

[grahamc]

Description

Embedding the Nix binary will reduce runtime failures due to fetching, and reduce the foundation's bandwidth burden by roughly half a terabyte per day.

Checklist

• Formatted with cargo fmt
• Built with nix build
• Ran flake checks with nix flake check
• Added or updated relevant tests (leave unchecked if not applicable)
• Added or updated relevant documentation (leave unchecked if not applicable)
• Linked to related issues (leave unchecked if not applicable)

Validating with install.determinate.systems

If a maintainer has added the upload to s3 label to this PR, it will become available for installation via install.determinate.systems:

curl --proto '=https' --tlsv1.2 -sSf -L https://install.determinate.systems/nix/pr/$PR_NUMBER | sh -s -- install

[ShalokShalom]

I guess its too early for that, but I would personally love to see the option to use tvix.

[cole-h]

Kyewl.

[cole-h]

@ShalokShalom

I guess its too early for that, but I would personally love to see the option to use tvix.

I'm also interested in tvix, but I don't think we would even consider supporting it in this project until it supported flakes. Maybe this has changed recently, but I also remember last time I checked on it, it didn't support building and/or substituting, which makes for a very limited Nix experience 😆