kittynode/flake.nix at main · futurekittylabs/kittynode · GitHub

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# This flake was initially generated by fh, the CLI for FlakeHub (version 0.1.25)
{
  # A helpful description of your flake
  description = "Kittynode flake";

  # Flake inputs
  inputs = {
    flake-schemas.url = "https://flakehub.com/f/DeterminateSystems/flake-schemas/*";

    nixpkgs.url = "https://flakehub.com/f/NixOS/nixpkgs/0.1.*";

    rust-overlay = {
      url = "https://flakehub.com/f/oxalica/rust-overlay/0.1.*";
      inputs.nixpkgs.follows = "nixpkgs";
    };
  };

  # Flake outputs that other flakes can use
  outputs =
    {
      flake-schemas,
      nixpkgs,
      rust-overlay,
      ...
    }:
    let
      # Nixpkgs overlays
      overlays = [
        rust-overlay.overlays.default
        (final: prev: {
          rustToolchain = final.rust-bin.nightly.latest.default.override {
            extensions = [ "rustc-codegen-cranelift-preview" ];
          };
        })
      ];

      # Helpers for producing system-specific outputs
      supportedSystems = [
        "aarch64-darwin"
        "aarch64-linux"
        "x86_64-linux"
      ];
      forEachSupportedSystem =
        f:
        nixpkgs.lib.genAttrs supportedSystems (
          system:
          f {
            pkgs = import nixpkgs { inherit overlays system; };
          }
        );
    in
    {
      # Schemas tell Nix about the structure of your flake's outputs
      schemas = flake-schemas.schemas;

      # Development environments
      devShells = forEachSupportedSystem (
        { pkgs }:
        {
          default = pkgs.mkShell {
            # Pinned packages available in the environment
            packages = with pkgs; [
              rustToolchain
              cargo-edit
              cargo-udeps
              cargo-nextest
              nixpkgs-fmt
              just
              bun
              git
            ];
            # Environment variables
            env = {
              RUST_BACKTRACE = "1";
              RUSTFLAGS = "-Z threads=8";
              CARGO_UNSTABLE_CODEGEN_BACKEND = "true";
              CARGO_PROFILE_DEV_CODEGEN_BACKEND = "cranelift";
            };
          };
        }
      );
    };
}