{
  description = "Build a cargo project";

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";

    crane = {
      url = "github:ipetkov/crane";
      inputs.nixpkgs.follows = "nixpkgs";
    };

    flake-utils.url = "github:numtide/flake-utils";

    advisory-db = {
      url = "github:rustsec/advisory-db";
      flake = false;
    };
  };

  outputs = { self, nixpkgs, crane, flake-utils, advisory-db, ... }:
    flake-utils.lib.eachDefaultSystem (system:
      let
        pkgs = import nixpkgs {
          inherit system;
        };

        inherit (pkgs) lib;

        craneLib = crane.lib.${system};
        src = craneLib.cleanCargoSource ./.;

        # Common arguments can be set here to avoid repeating them later
        commonArgs = {
          inherit src;

          nativeBuildInputs = with pkgs; [
            cmake
          ];
          
          buildInputs = with pkgs; [
            # Add additional build inputs here
            libopus
          ] ++ lib.optionals pkgs.stdenv.isDarwin ([
            # Additional darwin specific inputs can be set here
            pkgs.libiconv
          ] ++ (with pkgs.darwin.apple_sdk.frameworks; [
            Security
          ]));

          propagatedBuildInputs = with pkgs; [
            ffmpeg_5-headless
          ];

          meta = {
            hydraPlatforms = [ "x86_64-linux" ];
          };
          # Additional environment variables can be set directly
          # MY_CUSTOM_VAR = "some value";
        };

        # Build *just* the cargo dependencies, so we can reuse
        # all of that work (e.g. via cachix) when running in CI
        cargoArtifacts = craneLib.buildDepsOnly commonArgs;

        # Build the actual crate itself, reusing the dependency
        # artifacts from above.
        newalan = craneLib.buildPackage (commonArgs // {
          inherit cargoArtifacts;
        });
      in
        {
          checks = pkgs.lib.optionalAttrs (system == "x86_64-linux") {
            # Build the crate as part of `nix flake check` for convenience
            inherit newalan;

            # Run clippy (and deny all warnings) on the crate source,
            # again, resuing the dependency artifacts from above.
            #
            # Note that this is done as a separate derivation so that
            # we can block the CI if there are issues here, but not
            # prevent downstream consumers from building our crate by itself.
            newalan-clippy = craneLib.cargoClippy (commonArgs // {
              inherit cargoArtifacts;
              cargoClippyExtraArgs = "--all-targets -- --deny warnings";
            });

            newalan-doc = craneLib.cargoDoc (commonArgs // {
              inherit cargoArtifacts;
            });

            # Check formatting
            newalan-fmt = craneLib.cargoFmt {
              inherit src;
            };

            # Audit dependencies
            newalan-audit = craneLib.cargoAudit {
              inherit src advisory-db;
            };

            # Run tests with cargo-nextest
            # Consider setting `doCheck = false` on `newalan` if you do not want
            # the tests to run twice
            newalan-nextest = craneLib.cargoNextest (commonArgs // {
              inherit cargoArtifacts;
              partitions = 1;
              partitionType = "count";
            });
          } // lib.optionalAttrs (system == "x86_64-linux") {
            # NB: cargo-tarpaulin only supports x86_64 systems
            # Check code coverage (note: this will not upload coverage anywhere)
            newalan-coverage = craneLib.cargoTarpaulin (commonArgs // {
              inherit cargoArtifacts;
            });
          };
          
          runCommandHook = {
            newalan = pkgs.writeScript "New Alan CD" ''
              echo HIIIII $(date) >> ~/TEST_SCRIPT
              echo Wheee
            '';
          };
          packages.default = newalan;

          apps.default = flake-utils.lib.mkApp {
            drv = newalan;
          };

          devShells.default = pkgs.mkShell {
            inputsFrom = builtins.attrValues self.checks.${system};

            # Additional dev-shell environment variables can be set directly
            # MY_CUSTOM_DEVELOPMENT_VAR = "something else";

            # Extra inputs can be added here
            nativeBuildInputs = with pkgs; [
              cargo
              rustc
              rust-analyzer

              deploy-rs
            ];
          };
        }
    );
}