{
  description = "VRChat Event Tracker";

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

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

    fenix = {
      url = "github:nix-community/fenix";
      inputs.nixpkgs.follows = "nixpkgs";
      inputs.rust-analyzer-src.follows = "";
    };

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

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

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

        inherit (pkgs) lib;

        craneLib = crane.lib.${system};
        src = lib.cleanSourceWith {
          src = craneLib.path ./.; # The original, unfiltered source
          filter = path: type:
            let
              protoFilter = path: _type: builtins.match ".*proto$" path != null;
              protoOrCargo = path: type:
                (protoFilter path type) || (craneLib.filterCargoSources path type);
            in
              protoOrCargo path type;
        };
        # Common arguments can be set here to avoid repeating them later
        commonArgs = {
          inherit src;
          buildInputs = [
            pkgs.sqlite
            pkgs.pkg-config
            pkgs.openssl
            pkgs.protobuf
          ] ++ lib.optionals pkgs.stdenv.isDarwin [
            # Additional darwin specific inputs can be set here
            pkgs.libiconv
          ];
        };

        craneLibLLvmTools = craneLib.overrideToolchain
          (fenix.packages.${system}.complete.withComponents [
            "cargo"
            "llvm-tools"
            "rustc"
          ]);

        # 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.
        
        my-crate = craneLib.buildPackage (commonArgs // {
          inherit cargoArtifacts;
        });
      in
        {
          checks = {
            # Build the crate as part of `nix flake check` for convenience
            inherit my-crate;

            # 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.
            my-crate-clippy = craneLib.cargoClippy (commonArgs // {
              inherit cargoArtifacts;
              cargoClippyExtraArgs = "--all-targets -- --deny warnings";
            });

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

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

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

            # Run tests with cargo-nextest
            # Consider setting `doCheck = false` on `my-crate` if you do not want
            # the tests to run twice
            my-crate-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)
            my-crate-coverage = craneLib.cargoTarpaulin (commonArgs // {
              inherit cargoArtifacts;
            });
          };

          packages = {
            default = my-crate;
            my-crate-llvm-coverage = craneLibLLvmTools.cargoLlvmCov (commonArgs // {
              inherit cargoArtifacts;
            });
          };

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

          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
              sqlite
              sqlx-cli
              cargo-flamegraph
            ];
          };
        });
}