{
  inputs = {
    nixpkgs.url = "github:matthewcroughan/nixpkgs/mc/riscv-testing";

    # VisionFive ("v1")
    vendor-kernel = {
      url = "github:starfive-tech/linux";
      flake = false;
    };
    jh7100_ddrinit = {
      url = "https://github.com/starfive-tech/JH7100_ddrinit/releases/download/ddrinit-2133-211102/ddrinit-2133-211102.bin.out";
      flake = false;
    };
    jh7100_secondBoot = {
      url = "https://github.com/starfive-tech/JH7100_secondBoot/releases/download/bootloader-211102_VisionFive_JH7100/bootloader-JH7100-211102.bin.out";
      flake = false;
    };
    jh7100_recovery_binary = {
      url = "https://github.com/starfive-tech/bootloader_recovery/releases/download/JH7100_recovery_binary/jh7100_recovery_boot.bin";
      flake = false;
    };
    jh71xx-tools = {
      url = "github:xypron/jh71xx-tools";
      flake = false;
    };

    # VisionFive 2
    jh7110-kernel = {
      # url = "github:starfive-tech/linux/50a831018ed997c9fb3b603574176b221a28aa12"; # JH7110_VisionFive2_devel via VisionFive2 project submodule about two revisions back.
      url = "github:starfive-tech/linux/JH7110_VisionFive2_devel";
      flake = false;
    };
    jh7110_recovery_binary = {
      url = "https://github.com/starfive-tech/Tools/blob/bc6dc7e33e0c2466db0476b5043f0f77842f98f0/recovery/jh7110-recovery-20221205.bin?raw=true";
       flake = false;
     };
    # Should be possible to build from https://github.com/starfive-tech/VisionFive2
    jh7110_u-boot-spl-bin = {
      url = https://github.com/starfive-tech/VisionFive2/releases/download/VF2_v2.8.0/u-boot-spl.bin.normal.out;
      flake = false;
    };
    jh7110_u-boot-bin = {
      url = https://github.com/starfive-tech/VisionFive2/releases/download/VF2_v2.8.0/visionfive2_fw_payload.img;
      flake = false;
    };
  };
  outputs = inputs@{ self, nixpkgs, jh71xx-tools, jh7100_recovery_binary, jh7100_secondBoot, jh7100_ddrinit, vendor-kernel, ... }:
    let
      inherit (nixpkgs) lib;
      system = "x86_64-linux";
      pkgs = import nixpkgs { inherit system; overlays = [ self.overlay ]; };
      modules = [
        { nixpkgs.overlays = [ self.overlay ]; }
        "${nixpkgs}/nixos/modules/installer/sd-card/sd-image-riscv64-visionfive-installer.nix"
        ./base.nix
        ./configuration.nix
      ];

      # Pass arguments to a module inside a function inside a file, while preserving
      # the file name behavior of the module system.
      importApply =
        modulePath: staticArgs:
          lib.setDefaultModuleLocation modulePath (import modulePath staticArgs);
    in
    {
      overlay = final: prev: {
        linuxPackages_visionfive = final.linuxPackagesFor ((final.callPackage ./kernel.nix { inherit vendor-kernel; }).override { patches = []; });
      };
      legacyPackages.${system} =
        {
          inherit (pkgs.pkgsCross.riscv64.linux) linuxPackages_visionfive;
        };
      images = {
        visionfive-cross = self.nixosConfigurations.visionfive-cross.config.system.build.sdImage;
        visionfive-native = self.nixosConfigurations.visionfive-native.config.system.build.sdImage;

        visionfive2-cross = self.nixosConfigurations.visionfive2-cross.config.system.build.sdImage;
        visionfive2-native = self.nixosConfigurations.visionfive2-native.config.system.build.sdImage;
      };
      nixosModules = {
        visionfive2-sd-image = importApply ./visionfive2/sd-image.nix { inherit inputs importApply; };
        visionfive2-kernel = importApply ./visionfive2/kernel/nixos-module.nix { inherit inputs importApply; };
      };
      nixosConfigurations = {
        visionfive-cross = nixpkgs.lib.nixosSystem {
          system = "${system}";
          modules = modules ++ [
            {
              nixpkgs.crossSystem = {
                system = "riscv64-linux";
              };
            }
          ];
        };
        visionfive-native = nixpkgs.lib.nixosSystem {
          system = "riscv64-linux";
          modules = modules;
        };
      };
    };
}