Mount Servinga S3-Compatible Storage on Your Proxmox Server

apt install s3fs
echo ACCESS_KEY_ID:SECRET_ACCESS_KEY > /etc/passwd-s3fs
chmod 600 /etc/passwd-s3fs
mkdir /mnt/s3
s3fs backup /mnt/s3 -o passwd_file=/etc/passwd-s3fs -o url=https://nl.s3.servinga.cloud

Proxmox S3 servinga