How do you earn RNDR?

How exactly does one acquire RNDR? Could you please elaborate on the methods available for earning this cryptocurrency? Are there specific platforms or exchanges where I can purchase it? Or does earning RNDR involve participating in some sort of mining or staking process? I'm also curious about whether there are any rewards programs or airdrops that might allow me to acquire RNDR without having to spend fiat currency. Could you provide more details on these options? Additionally, are there any risks or considerations I should be aware of before attempting to earn RNDR? I'd greatly appreciate a comprehensive breakdown of the process.