A new start

flake.nix

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+{
+  description = "Harald Hoyer's Nix Configurations";
+
+  inputs = {
+    nixpkgs.url = "github:nixos/nixpkgs/nixos-23.11";
+
+    # NixPkgs Unstable (nixos-unstable)
+    unstable.url = "github:nixos/nixpkgs/nixos-unstable";
+
+    lanzaboote = {
+      url = "github:nix-community/lanzaboote/v0.3.0";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+
+    snowfall-lib = {
+      url = "github:snowfallorg/lib?rev=5082cdac87c5fd99ef2ee5989d9f73888bc5ed14";
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+
+    # macOS Support (master)
+    darwin.url = "github:lnl7/nix-darwin";
+    darwin.inputs.nixpkgs.follows = "nixpkgs";
+
+    home-manager.url = "github:nix-community/home-manager/release-23.11";
+    home-manager.inputs.nixpkgs.follows = "nixpkgs";
+
+    neovim-flake.url = "github:notashelf/neovim-flake/v0.5";
+    neovim-flake.inputs.nixpkgs.follows = "nixpkgs";
+
+    disko.url = "github:nix-community/disko";
+    disko.inputs.nixpkgs.follows = "nixpkgs";
+
+    sops-nix.url = "github:Mic92/sops-nix";
+    sops-nix.inputs.nixpkgs.follows = "nixpkgs";
+
+    nixsgx-flake = {
+      url = "github:matter-labs/nixsgx";
+      # inputs.nixpkgs.follows = "nixpkgs";
+    };
+
+    simple-nixos-mailserver.url = "gitlab:simple-nixos-mailserver/nixos-mailserver/nixos-23.11";
+    simple-nixos-mailserver.inputs.nixpkgs.follows = "nixpkgs";
+  };
+
+  outputs = inputs:
+    let
+      lib = inputs.snowfall-lib.mkLib {
+        inherit inputs;
+        src = ./.;
+
+        snowfall.namespace = "metacfg";
+
+        snowfall = {
+          meta = {
+            name = "metacfg";
+            title = "Metacfg";
+          };
+        };
+      };
+    in
+    lib.mkFlake {
+      channels-config = {
+        allowUnfree = true;
+      };
+
+      homes.modules = with inputs; [
+        neovim-flake.homeManagerModules.default
+      ];
+
+      systems.modules.nixos = with inputs; [
+        lanzaboote.nixosModules.lanzaboote
+        home-manager.nixosModules.home-manager
+        sops-nix.nixosModules.sops
+        disko.nixosModules.disko
+        simple-nixos-mailserver.nixosModule
+      ];
+
+      overlays = with inputs; [
+        nixsgx-flake.overlays.default
+      ];
+
+      outputs-builder = channels: {
+        formatter = channels.nixpkgs.nixpkgs-fmt;
+        defaultApp = lib.flake-utils-plus.mkApp { drv = channels.nixpkgs.home-manager; };
+      };
+
+    };
+}