nix-direnv
A fast, persistent implementation of direnv's use_nix and use_flake for caching Nix shell environments.
What is nix-direnv?
nix-direnv is a fast, persistent implementation of direnv's `use_nix` and `use_flake` functions for Nix-based development environments. It solves the problem of slow shell loading and lost build caches by caching evaluated environments and protecting dependencies from garbage collection.
Nix users and developers who work with Nix shells or flakes and want faster, more reliable direnv integration for their project environments.
Developers choose nix-direnv because it significantly speeds up environment loading after the first run, prevents accidental garbage collection of build dependencies, and works seamlessly as a drop-in replacement without requiring external daemons.
Overview
A fast, persistent use_nix/use_flake implementation for direnv [maintainer=@Mic92 / @bbenne10]
Use Cases
Best For
- Speeding up direnv environment loading in Nix-based projects
- Protecting Nix shell dependencies from garbage collection
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