handle info

.env.example

···
+# generate with `openssl ecparam --name secp256k1 --genkey --noout --outform DER | tail --bytes=+8 | head --bytes=32 | xxd --plain --cols 32`
+COOKIE_SECRET=my_secret

islands/MigrationSetup.tsx

···
             <label class="block text-sm font-medium text-gray-700 dark:text-gray-300">
               New Account Handle
               <span class="text-xs text-gray-500 ml-1">(Passport ID)</span>
+              <div class="inline-block relative group ml-2">
+                <svg class="w-4 h-4 text-gray-400 hover:text-gray-600 dark:hover:text-gray-300 cursor-help" fill="currentColor" viewBox="0 0 20 20">
+                  <path fill-rule="evenodd" d="M18 10a8 8 0 11-16 0 8 8 0 0116 0zm-8-3a1 1 0 00-.867.5 1 1 0 11-1.731-1A3 3 0 0113 8a3.001 3.001 0 01-2 2.83V11a1 1 0 11-2 0v-1a1 1 0 011-1 1 1 0 100-2zm0 8a1 1 0 100-2 1 1 0 000 2z" clip-rule="evenodd" />
+                </svg>
+                <div class="absolute bottom-full left-1/2 transform -translate-x-1/2 mb-2 px-3 py-2 bg-gray-900 text-white text-sm rounded-lg opacity-0 group-hover:opacity-100 transition-opacity duration-200 pointer-events-none whitespace-nowrap z-10">
+                  You can change your handle to a custom domain later
+                  <div class="absolute top-full left-1/2 transform -translate-x-1/2 border-4 border-transparent border-t-gray-900"></div>
+                </div>
+              </div>
             </label>
             <div class="mt-1 relative w-full">
               <div class="flex rounded-md shadow-sm w-full">