Using Bzlmod with Bazel 6+
- Enable with 
common --enable_bzlmodin.bazelrc. - Add to your 
MODULE.bazelfile: 
For the core module
bazel_dep(name = "rules_nixpkgs_core", version = "0.13.0")For the nodejs module
bazel_dep(name = "rules_nixpkgs_nodejs", version = "0.13.0")Using WORKSPACE
Paste this snippet into your WORKSPACE.bazel file:
load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
http_archive(
    name = "io_tweag_rules_nixpkgs",
    sha256 = "30271f7bd380e4e20e4d7132c324946c4fdbc31ebe0bbb6638a0f61a37e74397",
    strip_prefix = "rules_nixpkgs-0.13.0",
    urls = ["https://github.com/tweag/rules_nixpkgs/releases/download/v0.13.0/rules_nixpkgs-0.13.0.tar.gz"],
)
load("@io_tweag_rules_nixpkgs//nixpkgs:repositories.bzl", "rules_nixpkgs_dependencies")
rules_nixpkgs_dependencies()
load("@io_tweag_rules_nixpkgs//nixpkgs:nixpkgs.bzl", "nixpkgs_git_repository", "nixpkgs_package", "nixpkgs_cc_configure")
load("@io_tweag_rules_nixpkgs//nixpkgs:toolchains/go.bzl", "nixpkgs_go_configure") # optional0.13.0 - 2025-01-29
Added
- Support for Bazel 8. See #622.
 - Support for new 
apple-sdkfrom Nixpkgs 24.11 and later. See #639. - Documentation for 
nixpkgs_java_configurewith bzlmod. See #498. - Add 
extra_flags_per_featureto cc toolchain. See #575. - Add 
rustfmt_toolchain. See #625. 
Removed
nixpkgs_cc_configure_deprecatedwas removed since it depended on Bazel'scc_autoconf_impl, which was removed from@bazel_toolsand moved into a private package inrules_ccin Bazel 8. See #621.