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nix-troubleshooting

Diagnose and fix Nix, NixOS, and nix-darwin build and activation errors.

Updated Aug 23, 2026
Search Tags:#troubleshooting#logs#nix#activation#nixos#flake#build-failure
One-click install
npx skills add https://github.com/kaiiiiiiiii/nix-packages --skill nix-troubleshooting
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: nix-troubleshooting
Source: https://github.com/kaiiiiiiiii/nix-packages/tree/main/.github/skills/nix-troubleshooting
Command: npx skills add https://github.com/kaiiiiiiiii/nix-packages --skill nix-troubleshooting

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Diagnoses and fixes Nix, NixOS, and nix-darwin issues such as build failures and activation errors.

Core Features & Use Cases

  • Step-by-step diagnostics for common build failures, activation errors, and evaluation problems.
  • Guidance for disk space management, garbage collection, and channel/flake troubleshooting across Nix-based environments.
  • Real-world use cases covering NixOS, Nix-Darwin, and development workflows to stabilize configurations.

Quick Start

Run a guided troubleshooting session to diagnose and fix a Nix/NixOS build, activation, or evaluation error.

Frequently Asked Questions about nix-troubleshooting

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I fix NixOS build failures and activation errors?▼

NixOS build failures and activation errors are fixed through step-by-step diagnostics that analyze logs, apply concrete commands, and run validation checks to ensure reproducible resolutions across your configurations.

What is the best way to troubleshoot Nix flake evaluation problems?▼

The best way to troubleshoot Nix flake evaluation problems is to run a guided diagnostic session that analyzes build logs and applies validation checks to stabilize your Nix-based environment.

How do I resolve disk space constraints and garbage collection issues in Nix?▼

Resolving disk space constraints and garbage collection issues in Nix involves following specific troubleshooting guidance for managing system resources and stabilizing your NixOS or nix-darwin setup.

Does this troubleshooting approach work for both NixOS and nix-darwin environments?▼

Yes, this troubleshooting approach works for both NixOS and nix-darwin environments, providing real-world use cases and diagnostics to stabilize configurations across various Nix-based systems.

Why does my Nix channel update trigger an activation failure?▼

Nix channel updates trigger activation failures due to evaluation mismatches or broken dependencies, which require targeted log analysis and command-level validation checks to pinpoint and fix.

How do I debug evaluation problems when my Nix build is not working?▼

Debugging evaluation problems when a Nix build is not working requires analyzing step-by-step diagnostics, inspecting build logs, and applying validation checks to isolate the failure.

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