{
  description = "uni uses nix now!!";

  inputs = {
    systems.url = "github:nix-systems/default-linux";

    nixpkgs.url = "github:NixOS/nixpkgs/nixos-25.11";
    nixpkgs-unstable.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
    # WARNING: don't update the revision! it breaks the t2-firmware from nixos-hardware...
    nixpkgs-t2-firmware.url = "github:NixOS/nixpkgs?rev=7df7ff7d8e00218376575f0acdcc5d66741351ee";

    nixos-hardware.url = "github:NixOS/nixos-hardware?rev=3441b5242af7577230a78ffb03542add264179ab";

    home-manager = {
      url = "github:nix-community/home-manager/release-25.11";
      inputs.nixpkgs.follows = "nixpkgs";
    };
    home-manager-unstable = {
      url = "github:nix-community/home-manager/master";
      inputs.nixpkgs.follows = "nixpkgs-unstable";
    };

    cerulean = {
      url = "github:cry128/cerulean/refactor/snowflake";
      inputs = {
        systems.follows = "systems";
        nixpkgs.follows = "nixpkgs";
      };
    };

    grub2-themes = {
      url = "github:vinceliuice/grub2-themes";
      inputs.nixpkgs.follows = "nixpkgs";
    };

    sddm-silent = {
      url = "github:uiriansan/SilentSDDM";
      inputs.nixpkgs.follows = "nixpkgs";
    };

    hyprland = {
      url = "github:hyprwm/Hyprland";

      inputs = {
        nixpkgs.follows = "nixpkgs-unstable";
        systems.follows = "systems";
      };
    };

    awww = {
      url = "git+https://codeberg.org/LGFae/awww";
      inputs.nixpkgs.follows = "nixpkgs";
    };

    nixcats.url = "github:BirdeeHub/nixCats-nvim";

    nix-flatpak.url = "github:gmodena/nix-flatpak/?ref=latest";

    nixcord = {
      url = "github:FlameFlag/nixcord";
      inputs.nixpkgs.follows = "nixpkgs";
    };

    millennium = {
      url = "github:SteamClientHomebrew/millennium?dir=packages/nix";
      inputs.nixpkgs.follows = "nixpkgs-unstable";
    };

    wa2k = {
      url = "git+https://tearforge.net/cry/wa2k.com";
      inputs = {
        systems.follows = "systems";
        nixpkgs.follows = "nixpkgs";
      };
    };
  };

  nixConfig = {
    extra-experimental-features = "pipe-operators";
    extra-trusted-substituters = ["https://cache.soopy.moe"];
    extra-substituters = ["https://cache.soopy.moe"];
    extra-trusted-public-keys = ["cache.soopy.moe-1:0RZVsQeR+GOh0VQI9rvnHz55nVXkFardDqfm4+afjPo="];
  };

  outputs = {cerulean, ...} @ inputs:
    cerulean.snow.flake inputs ./.;
}