Alex Nemish and Oleksii Khodakivskyi from Lantr introduce Scalus, a smart contract framework built with Scala 3. They walk through the vision, roadmap, and show how it simplifies development on Cardano, including a live demo of a payment splitter contract. This session is ideal for devs exploring new tools to build on Cardano.

Giovanni Gargiulo, Senior Software Engineer at the Cardano Foundation, shares how ecosystem engineering supports Cardano’s growth. The session covers DevOps practices behind scalability, security, and uptime, along with challenges of running decentralized infrastructure. Giovanni also touches on infrastructure evolution, global adoption, and what’s ahead for Cardano engineering.

Satya Ranjan, Lead Blockchain Architect at the Cardano Foundation, presents Java tools for building on Cardano. The session covers cardano-client-lib, writing off-chain code, building transactions, and integrating governance and staking. Satya also demos Yaci DevKit for local dev environments, Yaci Store for indexing, and shows how to build lightweight apps using tailored data. Ideal for developers and exchanges exploring Java’s role in Cardano infrastructure.

This installment of the Cardano Developer Office Hours explores Reeve, a next-generation accountability tool for delivering tamper-proof and transparent financial insights. Reeve integrates traditional accounting systems with blockchain technology, ensuring transparency, immutability, and security for financial records. Built on Cardano, the platform offers a decentralized approach to financial data management. Designed for accountants, auditors, non-profits, and enterprises, Reeve helps streamline audits, improve efficiency, and build trust in financial processes. The session provides an overview of the project, its architecture, and current development.

A Roundtable Talk on February 25, 2025, focused on the Cardano budgeting process and the implications of the proposed Net Change Limit. The session aimed to educate the community on this treasury governance mechanism, which sets a yearly withdrawal cap. Experts discussed the risks of allocating budgets without a predefined limit and fostered an open discussion to empower community members in shaping structured and sustainable on-chain financial governance.

This installment of the Cardano Developer Office Hours explores the Cosmos-Cardano Inter-Blockchain Communication (IBC) bridge project. The session provides an overview of the architecture, current development, and key components driving the project. Topics include the IBC protocol, blockchain interoperability, and the integration of Cosmos SDK with Cardano. A live demo showcases how to send messages between the Cosmos network and a local Cardano node. The session also covers real-world use cases like token transfers, cross-chain swaps, and more.

This 13th installment of the Cardano Developer Office Hours is presented by Thomas Kammerlocher, Senior Full Stack Developer at the Cardano Foundation. Thomas discusses the Java implementation of Rosetta, a tool developed by Coinbase for exchanges to integrate with Cardano. Rosetta simplifies multi-chain support with its blockchain-agnostic API, and the transition from TypeScript to Java enhances performance and reduces resource consumption. Upcoming updates include support for staking rewards tracking, off-chain data integration, and more improvements to scalability and efficiency.

A Roundtable Talk on January 30, 2025, celebrated the Plomin Hard Fork, a milestone marking the full realization of decentralized governance in Cardano's Voltaire era. Key stakeholders gathered to discuss the significance of this achievement and reflect on the network's journey from Byron to Voltaire. The session explored the new opportunities for community-driven innovation and ecosystem growth unlocked by the decentralized treasury and on-chain governance framework.

This 12th installment of the Cardano Developer Office Hours is presented by Satya Ranjan, Senior Enterprise Architect at the Cardano Foundation. In this session, Satya discusses how the yaci-devkit simplifies building and testing on a local Cardano dev network, helping developers iterate faster and avoid public testnet limitations. The session highlights key features such as customizable block times, integrated tools, and Blockfrost-compatible APIs. A live demo shows easy setup using Docker and NPM distributions.

A Roundtable Talk on December 17, 2024, explored the role of large voters and DeFi protocols in Project Catalyst F13. The discussion featured insights on how major stakeholders like Minswap, Liqwid, and the Cardano Foundation evaluate and vote on proposals. It delved into the challenges and impact of stake-based governance and DeFi protocols borrowing voting power, examining the lessons shaping Cardano's one-ada-one-vote framework.