
Green Team and HarkerDev collaborated to develop Swap N’ Share, a textbook sharing app for students that will launch beta testing in January. To encourage student participation and feedback, the two organizations will enter the participant names into a raffle for a $25 gift card.
Students can exchange old textbooks rather than relying on high priced versions elsewhere if they put books up for sale on Swap N’ Share for points. They use these points to “purchase” other books they may need if they are available on the app.
Green Team officer Elaine Zou (10) originally proposed Swap N’ Share at the Cupertino Library for Silicon Valley Youth Climate Action conference in February of 2024 to address environmental issues with textbook waste at the local level.
“[The app] creates a circular economy, so a lot of seniors have textbooks they no longer use,” Elaine said. “Whenever you move up a grade, we just have a lot of leftover resources, so it allows students to pass them down to lower grades.”
Elaine wrote a proposal for the app at the conference and earned a grant of $7,350 from Silicon Valley Clean Energy. Elaine and Green Team adviser Diana Moss discussed their goals for this app, and figured out a way to act by involving other groups of students.
“It’s thrilling because I love that clubs are beginning to collaborate to do projects,” Moss said. “I love that sustainability is something that we are keeping in our mind, like how we use less resources and textbooks are super expensive. So it’s a win-win in that regard.”
The app was created in partnership with Elaine and HarkerDev administrator Kabir Ramzan (‘24) previously. Kabir contributed to the functionality for the app, helping other HarkerDev including members Demi Zheng (10) and Adrian Roufas (10) continue with the process for three months. Demi designed the app and navigation, and Adrian dedicated work to the back end code that allows computers to communicate to manage and store books.
One main concern with the software that the HarkerDev members ponder is ensuring that all users can participate equally and honorably without taking advantage of the system.
“We’re having trouble figuring out how to keep track of the value of certain books, because at the present moment somebody could reserve a bunch of books and not give a single book to anybody else,” Adrian said. “We’re trying to discourage that, so it becomes more of an exchange.”
Green Team and HarkerDev met with the school administration and the faculty-led Sustainability Committee to discuss final logistical details last month.
“The biggest thing I’m worrying about is the point system,” Demi said. “If somebody runs out of points and they don’t have any books to list, what do they do? We hope that the people who use our app aren’t trying to do this for profit but genuinely want to save paper for the environment and to give items to their friends or classmates for this whole process to happen.”

















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