Writting a file gives me an Error: EACCES: permission denied

I have to create and download files dynamically, in other questions on this discord, I have seen that they give the solution for volumes because the files created in production are not persistent, but i dont want that, I download them and then delete them, I don't need them to be persistent, but it gives me this error: [Error: EACCES: permission denied, open '/app/public/miFile.tx'] Although it is in the public folder it still gives a writing error because it does not have permission

Solution:

try removing line 20

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