Rodrigo Fernández, CTO and co-founder of Savelist, shares insights on optimizing Ionic-based Progressive Web Apps (PWAs) for desktop screens without compromising their mobile functionality. Having used Ionic since its early versions, Savelist faced challenges in adapting their mobile-first design to larger screens, as the layout initially felt like an enlarged version of their mobile app. Fernández highlights the importance of utilizing Ionic's flexbox-based grid system to create responsive content, suggesting adjustments to grid widths and breakpoints to enhance navigation and aesthetics. He also advises on centering toolbars and repositioning tabs to align with desktop usage patterns. Emphasizing the need for adaptable design, he discusses the use of Ionic's responsive grid and breakpoints to maintain a clear, organized layout of saved products, demonstrating how to adjust the number of display cards based on screen size. Fernández concludes by inviting readers to share their experiences and tips for enhancing Ionic app designs, underscoring the value of community input in refining development practices.