How to earn with Lido?

Could you please explain, in a nutshell, how individuals can earn through Lido? I'm curious to know the basic steps involved, whether it's through staking, lending, or other mechanisms. Additionally, are there any specific requirements or qualifications that need to be met in order to start earning? Also, could you provide an overview of the risks involved and any potential limitations? I'd appreciate it if you could keep the explanation concise yet informative.