func (r *metacacheReader) peek() (metaCacheEntry, error) {
	r.checkInit()
	if r.err != nil {
		return metaCacheEntry{}, r.err
	}
	if r.current.name != "" {
		return r.current, nil
	}
	if more, err := r.mr.ReadBool(); !more {
		switch err {
		case nil:
			r.err = io.EOF
			return metaCacheEntry{}, io.EOF
		case io.EOF:
			r.err = io.ErrUnexpectedEOF
			return metaCacheEntry{}, io.ErrUnexpectedEOF
		}

					}
				}
			}
		case "r":
			z.Recursive, err = dc.ReadBool()
			if err != nil {
				err = msgp.WrapError(err, "Recursive")
				return
			}
		case "i":
			z.Immediate, err = dc.ReadBool()
			if err != nil {
				err = msgp.WrapError(err, "Immediate")
				return
			}
		case "u":
			z.UndoWrite, err = dc.ReadBool()
			if err != nil {
				err = msgp.WrapError(err, "UndoWrite")

			}
		case "ReplicaStatus":
			err = z.ReplicaStatus.DecodeMsg(dc)
			if err != nil {
				err = msgp.WrapError(err, "ReplicaStatus")
				return
			}
		case "DeleteMarker":
			z.DeleteMarker, err = dc.ReadBool()
			if err != nil {
				err = msgp.WrapError(err, "DeleteMarker")
				return
			}
		case "ReplicationTimeStamp":
			z.ReplicationTimeStamp, err = dc.ReadTime()
			if err != nil {

Next, you would run the server passing the configurations as environment variables, for example you could set an `ADMIN_EMAIL` and `APP_NAME` with:

<div class="termy">

```console
$ ADMIN_EMAIL="deadpool@example.com" APP_NAME="ChimichangApp" fastapi run main.py

<span style="color: green;">INFO</span>:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)
```

</div>

/// tip