{
description = "A minimal development shell for cargo2nix (Phase 1: uses pre-built cargo)";
inputs = {
nixpkgs.url = "github:meta-introspector/nixpkgs?ref=feature/CRQ-016-nixify";
rust-overlay = {
url = "github:meta-introspector/rust-overlay?ref=feature/CRQ-016-nixify";
inputs.nixpkgs.follows = "nixpkgs";
};
flake-utils.url = "github:meta-introspector/flake-utils?ref=feature/CRQ-016-nixify";
#cargo2nix.url = "github:cargo2nix/cargo2nix/release-0.12";
};
outputs =
{ self
, nixpkgs
, rust-overlay
, flake-utils
, #cargo2nix
}:
flake-utils.lib.eachDefaultSystem (system:
let
overlays = [
#cargo2nix.overlays.default
rust-overlay.overlays.default
];
pkgs = import nixpkgs {
inherit system overlays;
config = {
permittedInsecurePackages = [ "openssl-1.1.1w" ];
};
};
myRustc = pkgs.rust-bin.nightly."2025-09-16".default;
# Requires cargo2nix overlay (currently commented out above).
# Uncomment the cargo2nix input and overlay to use this:
# rustPkgs = pkgs.rustBuilder.makePackageSet {
# rustToolchain = myRustc;
# };
# Use pre-built cargo from nixpkgs for Phase 1
cargo = pkgs.cargo;
workspaceShell = pkgs.mkShell {
packages = [
pkgs.statix
pkgs.openssl_1_1.dev
pkgs.zlib.dev
pkgs.sccache
pkgs.pkg-config
];
shellHook = ''
export PKG_CONFIG_PATH=${pkgs.openssl_1_1.dev}/lib/pkgconfig:${pkgs.zlib.dev}/lib/pkgconfig:$PKG_CONFIG_PATH
export PATH=${myRustc}/bin:${cargo}/bin:${pkgs.sccache}/bin:$PATH
echo "🦀 Rust development environment ready!"
'';
};
in
rec {
devShells = {
default = workspaceShell;
};
packages = rec {
inherit cargo;
default = cargo;
};
apps = rec {
cargo = { type = "app"; program = "${packages.cargo}/bin/cargo"; };
default = cargo;
};
}
);
}