TextInput

let (text, setText) = React.useState(() => "")

<TextInput
  value=text
  onChangeText={v => setText(_ => v)}
  placeholder="Type here"
  style={Style.s({borderWidth: 1., padding: 8.->dp})}
/>

Events include onChange, onEndEditing, onSubmitEditing, onContentSizeChange, etc. (see binding for full props).