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/

hosts/nix-on-droid/magicant/default.nix

@@ -0,0 +1,40 @@
+{ pkgs, ... }: {
+  environment = {
+    packages = with pkgs; [
+      vim
+      git
+      openssh
+      # toybox
+      dig
+      man
+      gnupg
+    ];
+
+    etcBackupExtension = ".bak";
+    extraOutputsToInstall = [
+      "doc"
+      "info"
+      "devdoc"
+    ];
+    motd = null;
+  };
+
+
+  android-integration = {
+    termux-open.enable = true;
+    xdg-open.enable = true;
+    termux-open-url.enable = true;
+    termux-reload-settings.enable = true;
+    termux-setup-storage.enable = true;
+  };
+
+  # Backup etc files instead of failing to activate generation if a file already exists in /etc
+
+  # Read the changelog before changing this value
+  system.stateVersion = "23.05";
+
+  # Set up nix for flakes
+  nix.extraOptions = ''
+    experimental-features = nix-command flakes
+  '';
+}