How do I reset a custom generated chunk after its unloaded?

thats not a great idea, youd rather just purge the chunks with mcselector with a setting of like 15 seconds of lifetime on chunks, anything under will be removed

I think you wanted that vs what you said

Don’t do it, if you are worried about storage, then why did you even pregen in the first place?

I’m not really worried about storage but I was wondering if there was an alternative way to reset the world without using any extra storage since I currently have a plugin that resets the chunk after its unloaded from a copy of the world.

You are solving a problem that doesn’t really exist then at the cost of stability?

Why?

I’m not really worried about storage

and

to be as storage efficient as possible

makes no sense to have in the same place

just dont do your plan, and take the extra storage

if you have 100gb of storage usability its fine

chunky is better in 99% of cases

because it doesnt require you to have shell access, nor download and upload

to remove chunks?

yes

chunky trim does inhabited time aswell

single command, just need to restart after for best practice

way less downtime than having to download 100 gb world, mcaselector then upload again

1 command like 10 seconds and youre done