nix-fast-build

Parallelize Nix evaluation and builds using nix-eval-jobs and nix-output-monitor.

3|1|Updated Mar 29, 2026
One-click install
npx skills add https://github.com/ncaq/konoka --skill nix-fast-build
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: nix-fast-build
Source: https://github.com/ncaq/konoka/tree/main/plugins/nix-tasuke/skills/nix-fast-build
Command: npx skills add https://github.com/ncaq/konoka --skill nix-fast-build

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

nix-fast-build is a parallelized workflow for Nix evaluation and builds, dramatically reducing feedback time in linting, building, and testing Nix-based projects.

Core Features & Use Cases

  • Parallel evaluation of Nix expressions using nix-eval-jobs and nix-output-monitor to accelerate checks.
  • Supports Flake-based projects for faster nix flake check, lint, and test tasks in CI or local development.
  • Ideal for CI pipelines and local development where rapid feedback on changes to Nix expressions is critical.

Quick Start

Run nix-fast-build to start parallel evaluation and builds for faster feedback.

Frequently Asked Questions about nix-fast-build

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

FAQPage Schema
How do I speed up nix flake check for CI pipelines?

You can speed up nix flake check by parallelizing Nix evaluation and builds across multiple workers. This approach uses nix-eval-jobs and nix-output-monitor to reduce feedback time for lint, build, and test workflows in Flake-based CI pipelines.

What is the best way to parallelize Nix builds for local development?

The best way to parallelize Nix builds for local development is to use a workflow that coordinates parallel workers. By leveraging nix-eval-jobs and nix-output-monitor, it accelerates evaluation and provides rapid feedback on Nix expressions.

Do I need nix-eval-jobs and nix-output-monitor to run parallel Nix evaluation?

Yes, you need nix-eval-jobs and nix-output-monitor to perform parallel Nix evaluation. These dependencies are required to coordinate parallel workers and handle common failure modes during Nix expression builds.

Does nix-fast-build work with Flake-based projects?

Yes, nix-fast-build supports Flake-based projects. It is designed to accelerate nix flake check, lint, and test tasks for both CI pipelines and local development environments that require fast feedback.

Why does parallel Nix evaluation fail and how are common failure modes handled?

Parallel Nix evaluation can encounter worker coordination issues, but this workflow handles common failure modes automatically. It coordinates parallel workers via nix-eval-jobs to manage evaluation and build errors effectively.

What are the limitations of using parallel workers for Nix evaluation?

The limitations of using parallel workers for Nix evaluation include the strict requirement for nix-eval-jobs and nix-output-monitor. It is specifically tailored for Flake-based projects and requires these dependencies to handle common failure modes.