feat!: dynamically create hosts

This commit completely restructures the flake. Hosts are now seperate
from profile configuration files in hosts/[system]. Nixos and Darwin
configurations will be built when present in the respective folders in hosts/

profiles/iso/minimal.nix

@@ -0,0 +1,61 @@
+{ lib, pkgs, ... }:
+{
+
+  nix.settings = {
+    experimental-features = [ "nix-command" "flakes" ];
+    warn-dirty = false;
+  };
+
+  boot = {
+    # initrd.systemd.enable = true;
+    kernelPackages = pkgs.linuxPackages_latest;
+    supportedFilesystems = lib.mkForce [ "brtfs" "vfat" ];
+    loader = {
+      efi.canTouchEfiVariables = true;
+      systemd-boot = {
+        enable = true;
+        configurationLimit = lib.mkDefault 5;
+        consoleMode = lib.mkDefault "max";
+      };
+    };
+  };
+
+  services = {
+    qemuGuest.enable = true;
+    openssh = {
+      enable = true;
+      ports = lib.mkDefault [ 22 ];
+      settings.PermitRootLogin = "yes";
+      authorizedKeysFiles = lib.mkForce [
+        "/etc/ssh/authorized_keys.d/%u"
+      ];
+    };
+  };
+
+  security.pam = {
+    sshAgentAuth.enable = true;
+    services = {
+      sudo.u2fAuth = true;
+    };
+  };
+
+  environment.systemPackages = with pkgs; [
+    curl
+    rsync
+    ssh-to-age
+    sops
+    vim
+    just
+  ];
+
+  programs = {
+    git.enable = true;
+    zsh.enable = lib.mkDefault true;
+  };
+
+  fileSystems."/boot".options = [ "umask=0077" ];
+
+  networking.networkmanager.enable = true;
+
+
+}