Blockchain Developer
mediumblockchain-l2-rollups
What are Layer 2 rollups and how do they change app design?
Answer
Rollups execute transactions off-chain and post proofs/data on-chain.
They reduce fees and increase throughput, but introduce:
- Bridging UX
- Finality differences
- Withdrawal delays (optimistic)
Apps must design for cross-chain messages, liquidity, and user onboarding across L1/L2.
Related Topics
Layer 2ScalingArchitecture