Rough script that makes index pages that have links to the files in a directory, like the directory listing provided by nginx or Apache, so you can have that when using S3-like object storage.
npx index-it [comma-separated file extensions] [files per page]
npx index-it pictures/2024 png,jpg,jpeg 20
This should put an index.html (and maybe an index-1.html and a index-2.html, etc.) in pictures/2024.