Intel macOS instructions recommend Determinate Nix, which no longer supports x86_64-darwin

[jonathon-walker]

Problem

The README lists Intel macOS (x86_64-darwin) as supported and recommends Determinate Nix:

Requirements

1. macOS (Apple Silicon or Intel) or Linux (x86_64)
2. Determinate Nix installed on your machine

However, Determinate Nix dropped Intel macOS support in v3.13.2 (November 2025). From the changelog:

Now that Apple is well on its way to transitioning to Apple Silicon, we feel it's time to discontinue our support for Determinate Nix on Intel Macs (x86_64-darwin in Nix terms) and support Apple Silicon (aarch64-darwin) exclusively.

Since nix-openclaw doesn't require Determinate-specific features, this is a documentation issue rather than a compatibility issue.

Note: Line 64 also references Determinate Nix:

Don't have Nix yet? Follow the Determinate Nix install guide, then come back here.

Suggested fix

Update the Requirements section to clarify that Intel Mac users should use the official Nix installer instead:

2. Nix installed on your machine — Determinate Nix (Apple Silicon) or official installer (Intel macOS, Linux)