How much does DeSo storage cost?

I'm curious to know, how much does DeSo storage actually cost? I've heard a lot about the platform and its potential for decentralizing social media, but I'm still unsure about the financial aspect of it. Is there a fixed price per gigabyte of storage, or does it vary based on certain factors? Additionally, are there any potential costs associated with maintaining or upgrading my storage space on DeSo? I'd appreciate any clarification you can provide on this matter.