Question on minio backend

[mononobi]

Hello dear will

I'm using your image proxy on top of minio, and it is really awesome.
but I have a problem on setting ACCESS_KEY_ID and SECRET_KEY of minio.
I want to remove any policies from minio bucket and only let accessing images to whoever that has
correct access key. but when I remove read only from my minio bucket and I set AWS_ACCESS_KEY_ID and AWS_SECRET_KEY
in variables of imageproxy compose file, I can not access images using proxy anymore and I have to add readonly into bucket
policies and then everyone can see images even outside of proxy. is there a way to let imageproxy connect to minio using
access key?