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Nix

Skill Jylhis/skills/skills/languages/nix

Curated Agent Skills marketplace for Claude Code, Codex, and Google Antigravity.

Install
npx -y skills add Jylhis/skills --skill nix

Assembled from the repository path, not quoted from the project. Check it against their README if it does not work.

2 things to look at

  • no licenseNo license file was found in the repository. Code published without one is not open source by default, so using it at work is a question for whoever answers licensing questions where you are.
  • 1 stars1 stars. Stars are a popularity signal and not a quality one, but at this level it is likely that nobody has read this closely except its author, and you would be relying on your own review.

What its author says it does

Copied from the file, not written here

Use for Nix, Nixpkgs, and NixOS work — language fundamentals (lambdas, attrsets, derivations, lib functions), flakes (inputs/outputs, devShells, flake-parts), Nixpkgs packaging (mkDerivation, callPackage, overlays, builders), NixOS modules (mkOption, services, systemd, secrets), nix-darwin macOS config, home-manager dotfiles, devenv developer shells, container builds (dockerTools), nixosTests VMs, debugging (infinite recursion, IFD, hash mismatch), linting (statix/deadnix/nixfmt), performance (closure size, IFD avoidance), Emacs packaging in Nix, and hybrid non-flake + flake repos. Read the matching reference before acting.

SKILL.md

3.0 KB, 654 tokens by cl100k_base, as published. Nobody here has run it

Nix skill index

Pick the topic and read its reference before writing or reviewing Nix code. Each top-level reference covers one domain; nested sub-references go deeper where needed.

TopicWhen to readReference
Language fundamentalssyntax, lambdas, attrsets, builtins, derivations, lib, callPackage, lazy eval, RFCsreferences/language.md (+ language/advanced.md, language/rfcs.md)
Flakesflake.nix, inputs, outputs, devShells, packages, follows, flake-parts, dendritic patternreferences/flakes.md (+ flakes/flake-parts.md)
Nixpkgs packagingmkDerivation, callPackage, overlays, override, fetchers, builders, cross-compilationreferences/nixpkgs.md (+ nixpkgs/builders.md, nixpkgs/cross-compilation.md)
NixOS modulesconfiguration.nix, mkOption, services, systemd, agenix/sops-nix, impermanencereferences/nixos-modules.md (+ nixos-modules/type-system.md, nixos-modules/testing.md)
nix-darwinmacOS system, system.defaults, launchd, Homebrew cask integrationreferences/darwin.md (+ darwin/defaults.md)
home-managerhome.nix, programs.*, xdg, declarative dotfiles, home.activationreferences/home-manager.md (+ home-manager/programs.md)
devenvdevenv.nix, devenv shell/up/test, languages, processes, services, pre-commitreferences/devenv.md (+ devenv/services.md)
ContainersdockerTools, buildLayeredImage, streamLayeredImage, OCI imagesreferences/containers.md
TestingnixosTest VM tests, multi-VM, namaka snapshot testsreferences/testing.md
Debugginginfinite recursion, IFD, hash mismatch, --show-trace, nix-tree, nix-diffreferences/debugging.md (+ debugging/error-catalog.md)
Lintingstatix, deadnix, nixfmt, treefmt-nix, CI pipelinereferences/linting.md (+ linting/ci-pipeline.md)
Performanceevaluation speed, IFD avoidance, closure size, garbage collection, distributed buildsreferences/performance.md (+ performance/tools.md)
Emacs packagingemacsWithPackages, trivialBuild, melpaBuild, native-comp, tree-sitter grammarsreferences/emacs-packaging.md
Hybrid (flake + non-flake)flake-compat shim, package vs module flakes, lock sync, overlay extractionreferences/hybrid.md (+ hybrid/justfile-package.md, hybrid/justfile-module.md, hybrid/statix-config.md)

After reading the reference, follow its guidance for the task.

What ships with it: 31 files

237.0 KB alongside SKILL.md

references/

Keep looking

Skills are one crate of 326,984. Ordering is by how many stacks a row turns up in, so the top of any crate is what has actually been picked rather than what has the most stars.