bsky markdown post fails to locate profile id

```js
function getCurrentHandle() {
  try {
    var storedHandle = localStorage.getItem('bsky-handle');
    if (storedHandle && storedHandle.includes('.')) {
      return storedHandle;
    }
  } catch (e) {
    console.log('Could not access localStorage:', e);
  }
  return null;
}
```

Clearly need some form of alternate -- maybe just fall back to user input?