Enable secure boot.

nix/configuration/boot.nix

@@ -9,42 +9,81 @@
 {
   imports = [ ];
 
-  config = lib.mkIf (!config.me.buildingIso) {
+  options = {
-
+    me.secureBoot = {
-    boot.loader.grub.enable = false;
+      enable = lib.mkOption {
-    # Use the systemd-boot EFI boot loader.
+        default = false;
-    boot.loader.systemd-boot.enable = true;
+        type = lib.types.bool;
-    # TODO: make not write bootx64.efi
+        description = ''
-    boot.loader.efi.canTouchEfiVariables = false;
+          Enable to use secure boot.
-
+        '';
-    # Automatically delete old generations
+      };
-    boot.loader.systemd-boot.configurationLimit = 3;
-
-    # Check what will be lost with `zfs diff zroot/linux/root@blank`
-    boot.initrd.systemd.enable = lib.mkDefault true;
-    boot.initrd.systemd.services.zfs-rollback = {
-      description = "Rollback ZFS root dataset to blank snapshot";
-      wantedBy = [
-        "initrd.target"
-      ];
-      after = [
-        "zfs-import-zroot.service"
-      ];
-      before = [
-        "sysroot.mount"
-      ];
-      path = with pkgs; [
-        zfs
-      ];
-      unitConfig.DefaultDependencies = "no";
-      serviceConfig.Type = "oneshot";
-      script = ''
-        zfs rollback -r zroot/linux/nix/root@blank
-        zfs rollback -r zroot/linux/nix/home@blank
-        echo "rollback complete"
-      '';
     };
   };
+
+  config = lib.mkMerge [
+    (lib.mkIf (!config.me.buildingIso) {
+
+      boot.loader.grub.enable = false;
+      # Use the systemd-boot EFI boot loader.
+      boot.loader.systemd-boot.enable = true;
+      # TODO: make not write bootx64.efi
+      boot.loader.efi.canTouchEfiVariables = false;
+
+      # Automatically delete old generations
+      boot.loader.systemd-boot.configurationLimit = 3;
+
+      # Check what will be lost with `zfs diff zroot/linux/root@blank`
+      boot.initrd.systemd.enable = lib.mkDefault true;
+      boot.initrd.systemd.services.zfs-rollback = {
+        description = "Rollback ZFS root dataset to blank snapshot";
+        wantedBy = [
+          "initrd.target"
+        ];
+        after = [
+          "zfs-import-zroot.service"
+        ];
+        before = [
+          "sysroot.mount"
+        ];
+        path = with pkgs; [
+          zfs
+        ];
+        unitConfig.DefaultDependencies = "no";
+        serviceConfig.Type = "oneshot";
+        script = ''
+          zfs rollback -r zroot/linux/nix/root@blank
+          zfs rollback -r zroot/linux/nix/home@blank
+          echo "rollback complete"
+        '';
+      };
+
+      # boot.loader.systemd-boot.extraEntries = {
+      #   "windows.conf" = ''
+      #     title Windows
+      #     efi /EFI/Microsoft/Boot/bootmgfw.efi
+      #     options root=PARTUUID=17e325bf-a378-4d1d-be6a-f6df5476f0fa
+      #   '';
+      # };
+    })
+    (lib.mkIf (config.me.secureBoot.enable) {
+      # For debugging and troubleshooting Secure Boot.
+      environment.systemPackages = with pkgs; [
+        sbctl
+      ];
+      boot.loader.systemd-boot.enable = lib.mkForce false;
+      boot.lanzaboote = {
+        enable = true;
+        pkiBundle = "/etc/secureboot";
+      };
+      environment.persistence."/persist" = lib.mkIf (!config.me.buildingIso) {
+        hideMounts = true;
+        directories = [
+          "/etc/secureboot" # Secure Boot Keys
+        ];
+      };
+    })
+  ];
 }
 # efibootmgr -c -d /dev/sda -p 1 -L NixOS-boot -l '\EFI\NixOS-boot\grubx64.efi'
 

nix/configuration/flake.lock

@@ -1,5 +1,103 @@
 {
   "nodes": {
+    "crane": {
+      "inputs": {
+        "nixpkgs": [
+          "lanzaboote",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1717535930,
+        "narHash": "sha256-1hZ/txnbd/RmiBPNUs7i8UQw2N89uAK3UzrGAWdnFfU=",
+        "owner": "ipetkov",
+        "repo": "crane",
+        "rev": "55e7754ec31dac78980c8be45f8a28e80e370946",
+        "type": "github"
+      },
+      "original": {
+        "owner": "ipetkov",
+        "repo": "crane",
+        "type": "github"
+      }
+    },
+    "flake-compat": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1696426674,
+        "narHash": "sha256-kvjfFW7WAETZlt09AgDn1MrtKzP7t90Vf7vypd3OL1U=",
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "rev": "0f9255e01c2351cc7d116c072cb317785dd33b33",
+        "type": "github"
+      },
+      "original": {
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "type": "github"
+      }
+    },
+    "flake-parts": {
+      "inputs": {
+        "nixpkgs-lib": [
+          "lanzaboote",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1717285511,
+        "narHash": "sha256-iKzJcpdXih14qYVcZ9QC9XuZYnPc6T8YImb6dX166kw=",
+        "owner": "hercules-ci",
+        "repo": "flake-parts",
+        "rev": "2a55567fcf15b1b1c7ed712a2c6fadaec7412ea8",
+        "type": "github"
+      },
+      "original": {
+        "owner": "hercules-ci",
+        "repo": "flake-parts",
+        "type": "github"
+      }
+    },
+    "flake-utils": {
+      "inputs": {
+        "systems": "systems"
+      },
+      "locked": {
+        "lastModified": 1710146030,
+        "narHash": "sha256-SZ5L6eA7HJ/nmkzGG7/ISclqe6oZdOZTNoesiInkXPQ=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "b1d9ab70662946ef0850d488da1c9019f3a9752a",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "gitignore": {
+      "inputs": {
+        "nixpkgs": [
+          "lanzaboote",
+          "pre-commit-hooks-nix",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1709087332,
+        "narHash": "sha256-HG2cCnktfHsKV0s4XW83gU3F57gaTljL9KNSuG6bnQs=",
+        "owner": "hercules-ci",
+        "repo": "gitignore.nix",
+        "rev": "637db329424fd7e46cf4185293b9cc8c88c95394",
+        "type": "github"
+      },
+      "original": {
+        "owner": "hercules-ci",
+        "repo": "gitignore.nix",
+        "type": "github"
+      }
+    },
     "home-manager": {
       "inputs": {
         "nixpkgs": [
@@ -36,6 +134,33 @@
         "type": "github"
       }
     },
+    "lanzaboote": {
+      "inputs": {
+        "crane": "crane",
+        "flake-compat": "flake-compat",
+        "flake-parts": "flake-parts",
+        "flake-utils": "flake-utils",
+        "nixpkgs": [
+          "nixpkgs"
+        ],
+        "pre-commit-hooks-nix": "pre-commit-hooks-nix",
+        "rust-overlay": "rust-overlay"
+      },
+      "locked": {
+        "lastModified": 1718178907,
+        "narHash": "sha256-eSZyrQ9uoPB9iPQ8Y5H7gAmAgAvCw3InStmU3oEjqsE=",
+        "owner": "nix-community",
+        "repo": "lanzaboote",
+        "rev": "b627ccd97d0159214cee5c7db1412b75e4be6086",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "ref": "v0.4.1",
+        "repo": "lanzaboote",
+        "type": "github"
+      }
+    },
     "nixpkgs": {
       "locked": {
         "lastModified": 1734323986,
@@ -68,6 +193,22 @@
         "type": "github"
       }
     },
+    "nixpkgs-stable": {
+      "locked": {
+        "lastModified": 1710695816,
+        "narHash": "sha256-3Eh7fhEID17pv9ZxrPwCLfqXnYP006RKzSs0JptsN84=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "614b4613980a522ba49f0d194531beddbb7220d3",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-23.11",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
     "nixpkgs-unstable": {
       "locked": {
         "lastModified": 1734424634,
@@ -84,14 +225,82 @@
         "type": "github"
       }
     },
+    "pre-commit-hooks-nix": {
+      "inputs": {
+        "flake-compat": [
+          "lanzaboote",
+          "flake-compat"
+        ],
+        "gitignore": "gitignore",
+        "nixpkgs": [
+          "lanzaboote",
+          "nixpkgs"
+        ],
+        "nixpkgs-stable": "nixpkgs-stable"
+      },
+      "locked": {
+        "lastModified": 1717664902,
+        "narHash": "sha256-7XfBuLULizXjXfBYy/VV+SpYMHreNRHk9nKMsm1bgb4=",
+        "owner": "cachix",
+        "repo": "pre-commit-hooks.nix",
+        "rev": "cc4d466cb1254af050ff7bdf47f6d404a7c646d1",
+        "type": "github"
+      },
+      "original": {
+        "owner": "cachix",
+        "repo": "pre-commit-hooks.nix",
+        "type": "github"
+      }
+    },
     "root": {
       "inputs": {
         "home-manager": "home-manager",
         "impermanence": "impermanence",
+        "lanzaboote": "lanzaboote",
         "nixpkgs": "nixpkgs",
         "nixpkgs-b93b4e9b5": "nixpkgs-b93b4e9b5",
         "nixpkgs-unstable": "nixpkgs-unstable"
       }
+    },
+    "rust-overlay": {
+      "inputs": {
+        "flake-utils": [
+          "lanzaboote",
+          "flake-utils"
+        ],
+        "nixpkgs": [
+          "lanzaboote",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "lastModified": 1717813066,
+        "narHash": "sha256-wqbRwq3i7g5EHIui0bIi84mdqZ/It1AXBSLJ5tafD28=",
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "rev": "6dc3e45fe4aee36efeed24d64fc68b1f989d5465",
+        "type": "github"
+      },
+      "original": {
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "type": "github"
+      }
+    },
+    "systems": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
     }
   },
   "root": "root",

nix/configuration/flake.nix

@@ -35,6 +35,12 @@
     nixpkgs-b93b4e9b5.url = "github:NixOS/nixpkgs/b93b4e9b527904aadf52dba6ca35efde2067cbd4";
     home-manager.url = "github:nix-community/home-manager/release-24.11";
     home-manager.inputs.nixpkgs.follows = "nixpkgs";
+    lanzaboote = {
+      url = "github:nix-community/lanzaboote/v0.4.1";
+
+      # Optional but recommended to limit the size of your system closure.
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
   };
 
   outputs =
@@ -45,6 +51,7 @@
       nixpkgs-b93b4e9b5,
       impermanence,
       home-manager,
+      lanzaboote,
       ...
     }@inputs:
     let
@@ -61,6 +68,7 @@
         modules = [
           impermanence.nixosModules.impermanence
           home-manager.nixosModules.home-manager
+          lanzaboote.nixosModules.lanzaboote
           {
             home-manager.useGlobalPkgs = true;
             home-manager.useUserPackages = true;

nix/configuration/hosts/odo/default.nix

@@ -11,4 +11,6 @@
   networking.hostName = "odo"; # Define your hostname.
 
   time.timeZone = "America/New_York";
+
+  me.secureBoot.enable = true;
 }

nix/configuration/roles/chromium/default.nix

@@ -8,6 +8,8 @@
 {
   imports = [ ];
 
+  # TODO: Read https://bbs.archlinux.org/viewtopic.php?pid=2209507#p2209507 and apply desired settings.
+
   environment.systemPackages = with pkgs; [
     (chromium.override { enableWideVine = true; })
   ];