Gui's Nix Configs

These are my nix configurations. If you're not me and are reading this, it might be useful, but I have no public ambitions with this repo.

This is heavily based on EmergentMind's Nix Configs.

Workflows

This repository includes a justfile with convenient commands that work on both Darwin and NixOS:

• Build configuration without applying (test your changes):

  just build

• Build and apply configuration to current host:

  just apply

• Update all flake dependencies, test them, and commit flake.lock:

  just update

• Quick sync: update dependencies and apply in one go:

  just update apply

The just commands automatically:

• Detect your platform (Darwin/NixOS) and hostname
• Use the correct rebuild command for your system
• Handle sudo requirements with clear warnings

The home-manager configuration gets built and applied together with the nix-darwin configuration.

Automatic Updates

This configuration includes automatic updates that run weekly on all hosts:

• What it does: Updates flake dependencies, validates the configuration, and applies changes automatically
• Schedule: Runs weekly according to a schedule (or on the next system startup, if the system is off during the scheduled time)
• Platforms: Works on both Darwin (using launchd) and NixOS (using systemd)

The auto-update schedule is configured in hosts/common/core/default.nix:

Monitoring

On Darwin (macOS):

• Check if service is loaded:

  sudo launchctl list | grep dotfiles-auto-update

• View output logs:

  sudo tail -f /var/log/dotfiles-update.log

• View error logs:

  sudo tail -f /var/log/dotfiles-update-error.log

On NixOS:

• Check service status:

  systemctl status dotfiles-auto-update.service

• Check timer status and next run:

  systemctl list-timers dotfiles-auto-update.timer

• View logs:

  journalctl -u dotfiles-auto-update.service