{
  inputs = {
    nixpkgs.url = "github:nixos/nixpkgs";
    fenix.url = "github:nix-community/fenix";
    prisma-engines.url = "github:prisma/prisma-engines?ref=4.12.0";
  };

  outputs = { self, nixpkgs, flake-utils, fenix, prisma-engines }:
    flake-utils.lib.eachDefaultSystem (system:
      let
        pkgs = import nixpkgs {
          inherit system;
          overlays = [
            fenix.overlays.default

            (final: prev: {
              prisma-engines = prisma-engines.packages.${system}.prisma-engines;
            })
          ];
        };

        lib = pkgs.lib;

        prisma-env =
          import ./nix/prisma-env.nix { inherit (pkgs) prisma-engines; };

        toolchain = with fenix.packages.${system};
          combine [
            stable.rustc
            stable.cargo
            # targets.wasm32-unknown-unknown.latest.rust-std
          ];

        flakePkgs = rec {
          # mdbook-tera = pkgs.callPackage ./nix/mdbook-tera.nix { inherit toolchain; };
        };
      in rec {
        packages = flake-utils.lib.flattenTree flakePkgs;

        devShells = {
          default = pkgs.mkShell ({
            packages = with pkgs; [
              cargo-deny
              cargo-edit
              cargo-expand
              cargo-flamegraph
              cargo-watch
              sqlite

              zlib

              cargo-generate
              pkg-config
              rust-analyzer

              deno
              openssl
              yq

              mdbook
              # flakePkgs.mdbook-tera

              (python310.withPackages
                (p: with p; [ ipython numpy scipy sympy ]))

              toolchain

              # Get the nightly version of rustfmt so we can wrap comments
              pkgs.fenix.default.rustfmt
            ];

            PKG_CONFIG_PATH = pkgs.lib.concatStringsSep ":" [
              "${pkgs.gnome.libsoup.dev}/lib/pkgconfig"
              "${pkgs.webkitgtk.dev}/lib/pkgconfig"
              "${pkgs.gtk3.dev}/lib/pkgconfig"
              "${pkgs.gtk4.dev}/lib/pkgconfig"
              "${pkgs.glib.dev}/lib/pkgconfig"
              "${pkgs.cairo.dev}/lib/pkgconfig"
              "${pkgs.gdk-pixbuf.dev}/lib/pkgconfig"
              "${pkgs.pango.dev}/lib/pkgconfig"
              "${pkgs.harfbuzz.dev}/lib/pkgconfig"
              "${pkgs.at-spi2-atk.dev}/lib/pkgconfig"
            ];
          } // prisma-env);

          ci = pkgs.mkShell { packages = with pkgs; [ bash mdbook nodejs ]; };
        };
      });
}