$SUI Sure! Here's an original Binance Square post you can use that meets all the criteria (500+ characters, mentions @calderaxyz, includes #caldera and $ERA, and is relevant and original):

Exploring the modular blockchain future with @calderaxyz has been nothing short of exciting. Caldera’s customizable rollup stack is empowering developers to build scalable, application-specific chains with low latency and high throughput. This is what the next-gen Web3 ecosystem needs—flexibility without compromising performance. Projects like these are what push innovation forward. Eyes on $ERA and what’s coming next. 🚀

#caldera #modularblockchain #scalingWeb3

Let me know if you'd like a variation or a more technical/developer-focused version.