---
title: "devenv Declarative Developer Environments with Nix"
description: "A fast, declarative, and reproducible developer environment tool built on Nix. devenv lets teams define project dependencies, services, scripts, and language toolchains in a single configuration file, ensuring consistent environments across machines."
verification: "security_reviewed"
source: "https://github.com/cachix/devenv"
category:
  - "Developer Tools"
framework:
  - "Multi-Framework"
tool_ecosystem:
  github_repo: "cachix/devenv"
  github_stars: 6614
---

# devenv Declarative Developer Environments with Nix

A fast, declarative, and reproducible developer environment tool built on Nix. devenv lets teams define project dependencies, services, scripts, and language toolchains in a single configuration file, ensuring consistent environments across machines.

## Installation

Choose whichever fits your setup:

1. Copy this skill folder into your local skills directory.
2. Clone the repo and symlink or copy the skill into your agent workspace.
3. Add the repo as a git submodule if you manage shared skills centrally.
4. Install it through your internal provisioning or packaging workflow.
5. Download the folder directly from GitHub and place it in your skills collection.

## Source

- [Agent Skill Exchange](https://agentskillexchange.com/skills/devenv-declarative-developer-environments-nix/)