{
inputs = {
nixpkgs.url = "nixpkgs/nixos-25.11";
fenix = {
url = "fenix";
inputs.nixpkgs.follows = "nixpkgs";
};
flake-utils.url = "flake-utils";
};
outputs =
{
self,
nixpkgs,
fenix,
flake-utils,
}:
flake-utils.lib.eachDefaultSystem (
system:
let
pkgs = nixpkgs.legacyPackages.${system};
toolchain = fenix.packages.${system}.stable.withComponents [
"cargo"
"clippy"
"rust-analyzer"
"rust-src"
"rustc"
"rustfmt"
];
platform = pkgs.makeRustPlatform {
cargo = toolchain;
rustc = toolchain;
};
cargoToml = pkgs.lib.importTOML ./Cargo.toml;
# Fenix's lld doesn't set RPATH; use wrapped lld for native deps.
# This flag is also needed on macOS, but gated behind -Z unstable-options there.
rustEnv = {
RUSTFLAGS = pkgs.lib.optionalString pkgs.stdenv.isLinux "-Clink-self-contained=-linker";
OPENSSL_NO_VENDOR = "1";
};
in
{
packages.default = platform.buildRustPackage (
rustEnv
// rec {
pname = cargoToml.package.name;
version = cargoToml.package.version;
description = cargoToml.package.description;
nativeBuildInputs = with pkgs; [ llvmPackages.bintools ];
src = pkgs.lib.cleanSource ./.;
cargoLock = {
lockFile = ./Cargo.lock;
};
meta.mainProgram = pname;
}
);
devShells.default = pkgs.mkShell (
rustEnv
// {
inputsFrom = [ self.packages.${system}.default ];
buildInputs = [ pkgs.nixfmt-rfc-style ];
RUST_LOG = "debug";
}
);
packages.docker = pkgs.dockerTools.buildImage {
name = cargoToml.package.name;
tag = cargoToml.package.version;
config = {
Cmd = [ (pkgs.lib.getExe self.packages.${system}.default) ];
};
};
}
);
}