Building this blockchain application presented several challenges. Initially, implementing CRUD operations with hooks, especially for blockchain integration, was a steep learning curve. I relied heavily on documentation and community resources to grasp these concepts, as it was my first experience with blockchain development.

Another significant hurdle was testing the application. Accessing Sepolia ETH for testing purposes proved difficult due to limitations on available tokens. To overcome this, I had to ask friends to set up MetaMask wallets and send Sepolia test ETH through faucets. This process was time-consuming and highlighted the importance of sufficient testing resources from the outset.

Furthermore, the project faced ongoing updates and changes in blockchain technology. Each update required adjustments to ensure compatibility and functionality, adding complexity to development and testing phases.

Despite these challenges, navigating through them has been a valuable learning experience, refining my skills in blockchain development and project management. Each obstacle has contributed to strengthening the robustness and resilience of the application as it progresses towards completion.