Interoperability is one of the easiest ways to turn a clear blockchain roadmap into an unexpected delay. A founder comes in with a focused vision: One chain. One product. One launch timeline. Then, somewhere during the architecture discussion, the question appears: “Can we make it work on another chain as well?” It sounds like a simple addition. In reality, it can reshape the entire build. Cross-chain functionality is not something you attach at the end of development. It affects core decisions from the beginning token contract design, wallet interactions, bridge mechanisms, transaction flows, security models, and how users experience the product across networks. We have seen how a single interoperability decision, made too late, can create major changes in planning, development effort, and security reviews. The projects that move smoothly are usually not the ones that avoid complexity. They are the ones that identify it early. The interoperability conversation needs to happen at the architecture stage not after smart contracts are already written and infrastructure choices are locked in. For any token-based product, the question is not just: “Which blockchain should we launch on?” It is: “How will this product interact with the wider ecosystem as it grows?” The decisions made in the first few weeks often determine the challenges faced months later. A strong blockchain product is not only built for launch day. It is designed for the ecosystem it needs to operate in. How early do you think teams should make their interoperability decisions before product development starts or during technical planning?