You could do quick tests using bytea, toast, or large objects. But an object store may be more convenient overall. When I did something similar, I did store e

You could do quick tests using bytea, toast, or large objects. But an object store may be more convenient overall. When I did something similar, I did store embeddings and the image UUID in a table and my images in an object store with the same UUIDs as filenames. It was simpler to upload the images and put them available through a CDN.