XF 2.2 Place for own addon cache folder?


I'm developing an addon that does some work with uploaded attachments (images and videos)and generates thumbnails.

I wanted to ask what the best practice is when placing the files being generated. I know that videos are saved under /data/videos/ and pictures are saved under /attachments/

Should I create my own subfolder on those places for my addon? Something like:

Or is there another best practice?

Thanks in advance

After posting this question, I found out that I asked the same question a while ago and it was already answered. I can not remove the post, apologizes for repeating it .