First we grab and display the variables from the Settings section of the JSON - https://keithgreer.dev/setting-up-a-multipurpose-cmsed-liquid-homepage-section-for-shopify

shopify-homepage-settings.json

{
	"name": "Video & Testimonial",
	"max_blocks": 5,
	"settings": [
		{
	  "id": "video_title",
	  "type": "text",
	  "label": "Heading",
	  "default": "Learn 'How to' with our video"
		},
		{
	  "id": "video_sub",
	  "type": "text",
	  "label": "Heading",
	  "default": "Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed incididunt. Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod"
		},
		{
	  "id": "video_code",
	  "type": "text",
	  "label": "YouTube Code",
	  "default": "GF60Iuh643I"
		},
		{
	  "id": "video_image",
	  "type": "image_picker",
	  "label": "Background Image"
		}
	],
	"blocks": [
	{
	"type": "testimonial",
	"name": "Testimonial Option",
	"settings": [
	  {
	    "id": "testimonial_subject",
	    "type": "text",
	    "label": "Testimonial Subject"
	  },
	  {
	    "type": "image_picker",
	    "id": "image",
	    "label": "Image"
	  },
	  {
	    "id": "testimonial_desc",
	    "type": "textarea",
	    "label": "Testimonial Description"
	  },
	  {
	    "id": "testimonial_author",
	    "type": "text",
	    "label": "Testimonial Author"
	  }
	]
	}

	],
	"presets": [
		{
		"name": "Video and Testimonial",
		"category": "Testimonial",
			    "settings": {}
		}
	]
}