The problem Kasturi solves

Indonesia has hundreds of regional languages that are still used in daily life, but there is no structured and credible way for outsiders to learn them.

For people who move between regions like students and workers, language gaps often create:

• Miscommunication in everyday interactions
• Social friction and exclusion
• A persistent feeling of being an “outsider” in a new community

Today, learning usually depends on luck: local friends, long immersion, or unstructured online content. Even when someone makes a real effort, the outcome is hard to measure and impossible to prove to others.

Challenges I ran into

• Choosing the right ERC standards:
  Determining how to use Soulbound tokens for non-transferable learning credentials and ERC-1155 for redeemable utilities required careful consideration of responsibilities and scope.

• Limited provider support on Lisk Sepolia:
  Some commonly used third-party providers were not yet fully usable or stable on Lisk Sepolia, which limited certain integrations during development.

• Heavy reliance on direct RPC calls:
  Early implementations used direct RPC calls even for simple on-chain data, which increased complexity on the frontend.

• Implementing newly learned technologies:
  The project involved applying concepts that were recently learned, including Soulbound Tokens, ERC-1155, and email-based login while abstracting blockchain complexity from users.