real_parent 0.4.0

Symlink-safe path extension for parent directory
Documentation 
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{
  description = "A Rust development environment flake.";

  inputs = {
    nixpkgs.url = github:NixOS/nixpkgs/nixpkgs-unstable;
    rust-overlay.url = "github:oxalica/rust-overlay";
    flake-utils.url = "github:numtide/flake-utils";
  };

  outputs = { self, nixpkgs, rust-overlay, flake-utils }:
    flake-utils.lib.eachDefaultSystem
      (system:
        let
          overlays = [ (import rust-overlay) ];
          pkgs = import nixpkgs {
            inherit system overlays;
          };
          # cargo-nightly based on https://github.com/oxalica/rust-overlay/issues/82
          nightly = pkgs.rust-bin.selectLatestNightlyWith (t: t.default);
          cargo-nightly = pkgs.writeShellScriptBin "cargo-nightly" ''
              export RUSTC="${nightly}/bin/rustc";
              exec "${nightly}/bin/cargo" "$@"
          '';

          rust-bin-multi-target = pkgs.rust-bin.stable.latest.default.override {
            targets = [
              "x86_64-unknown-linux-gnu"
              "x86_64-pc-windows-gnu"
              "x86_64-apple-darwin"
            ];
          };
        in
          with pkgs;
          {
            devShells.default = mkShell {
              nativeBuildInputs = [
                bashInteractive
                cargo-nextest
                cargo-modules
                cargo-nightly
                cargo-udeps
                cargo-outdated
                rust-bin-multi-target
                tokio-console
              ];
            };
          }
      );
}