From https://github.com/kern/filepizza?tab=readme-ov-file#whats-new-with-filepizza-v2

What's new with FilePizza v2

• A new UI with dark mode support, now built on modern browser technologies.
• Works on most mobile browsers, including Mobile Safari.
• Transfers are now directly from the uploader to the downloader's browser (WebRTC without WebTorrent) with faster handshakes.
• Uploaders can monitor the progress of the transfer and stop it if they want.
• Better security and safety measures with password protection and reporting.
• Support for uploading multiple files at once, which downloaders receive as a zip file.
• Streaming downloads with a Service Worker.
• Out-of-process storage of server state using Redis.