Here's a sample original post you can use or modify for Square to meet all the requirements:

🚀 The future of modular blockchain infrastructure is here with @Caldera Official ! Caldera is transforming how devs build scalable L2 rollups with ultra-fast finality and full customizability. Excited to see how it powers new use cases on $ERA! 🌐 #Caldera

✅ Post Length: 100+ characters

✅ Mention: @Caldera Official .

✅ Hashtag: #Caldera

✅ Token Mention: $ERA

✅ Original and Relevant Content

@Caldera Official #caldera