For this type of project, you can use the Video comparison (Side-by-side) preset.
Take a look at the example: there are two videos and buttons to choose an answer. Note that validation, keyboard shortcuts, and task layout are already configured in this example.View example
You can add media files (audio files, videos, images) from your own server, a cloud storage like Yandex Cloud, Google Cloud, and Amazon AWS, or Yandex Disk.
To check whether a Toloker watched videos up to the end, replace the condition.played component with condition.played-fully.
To add a detailed description to the task, use the view.text component.
To let Tolokers leave comments about the task or their response, add a text field using field.textarea.
If this preset doesn't meet your needs, see other examples in this section.
To enhance Toloker's experience, you can highlight different types of data with colors using view.alert. In this example, the source text is highlighted with a blue border, and the buttons are highlighted with a yellow one.