Nix Install

Install the Nix package manager and prepare it for development use. Handles platform detection, installer selection, installation, post-install verification, and flake enablement.

What this skill does

1. Detects the platform (OS, distro, WSL2, container).
2. Checks for an existing Nix installation.
3. Selects an installer (Determinate Systems or upstream nixos.org).
4. Installs Nix using the appropriate command for the platform.
5. Verifies the installation, daemon, and flake support.

Platform detection