@RustyPotato could you try this branch ?

Codecov Report

Attention: Patch coverage is 44.64286% with 31 lines in your changes missing coverage. Please review.

Project coverage is 90.48%. Comparing base (cdc3850) to head (c87a92d).

@RustyPotato you may need to remove the composer.lock before doing your install, but in theory it should now support your 32 bit install.

Couldn't the zip creation also be outsourced to the client?
https://github.com/gildas-lormeau/zip.js

the latest 2 version would be 2.4.0
https://github.com/maennchen/ZipStream-PHP/releases/tag/2.4.0

Couldn't the zip creation also be outsourced to the client? gildas-lormeau/zip.js

The problem is that the response is in streaming mode, In version 3 of Lychee, we were creating the zip file serverside before sending it. This has changed by the use of ZipStream, but I am not knowledgeable enough of how streaming files works with http, not how it would be possible for the client to know, that is one file, that is the next file.
The advantage of streaming the zip file directly is that the client no longer need to keep the page open and can just have it run in a background tab.

@RustyPotato please confirm otherwise I won't be able to merge this. :)