
By Erika Hassinen & Janne Eerola. Photos by Joshua Piipponen. AI has been used in translating the article into English.
This spring in Joensuu, a two-day hackathon was organized as part of the “Student City Joensuu 1.0” project. Seven multidisciplinary and international student teams took on the challenge of developing better shared living solutions in the city of Joensuu.
The best team was awarded tickets to Ilosaarirock festival, and their winning idea was selected for a pilot project in collaboration with student housing organisation Joensuun Elli.
Many of the practical arrangements for the event were also carried out by students. Project manager Janne Eerola acted mainly as background support and host of the hackathon.
– The underlying goal was to increase students’ opportunities to influence topics they find important in Joensuu. Every year, there’s a significant shortage of student housing, and one area of development is making shared living more attractive. That’s why we organized an idea competition together with Elli and private landlords, seeking new, creative ways to improve shared housing, Eerola explains.
The hackathon took place at the University of Eastern Finland in April. Over 24 hours, the teams worked on solutions for more functional shared housing. The competition culminated in pitch presentations, where teams showcased their ideas to a jury.

The Winning Team
The winning team was selected by judges from Joensuun Elli, Business Joensuu, and a representative of private landlords. The jury evaluated the ideas based on factors such as testability, innovativeness, and suitability for both Elli and private landlords.
All teams presented clever and practical ideas. Ultimately, the jury chose Vivunity as the winner. Team members Tatiana and Valeriya developed a solution for more functional and enjoyable shared living by using an algorithm-based tool to match compatible roommates. Finding suitable flatmates is a major factor in comfortable shared living, yet currently there is no widely used effective solution for it.
Vivunity’s concept also includes an app that helps users find suitable apartments based on roommate preferences and supports community building and advice sharing among housemates.
The first version of the idea is already being piloted. The team plans to develop a full-fledged app based on their idea in the future.

Positive Experiences from Hackathons
One of the participating teams had also competed in the earlier Sohjo Hacks competition and won one of the challenges related to student housing — furniture recycling between tenants. This time, Complete — the team of Tayyab Farouq Arshad and Nima Hadmi — came in second place, but both team members felt that the hackathons were a great opportunity to showcase their skills and push their ideas forward.
Other participants also found the hackathon to be a valuable experience. Petri Keinonen, a biology student at the University of Eastern Finland, encourages future hackathons:
– Students should definitely take part in hackathons, because they offer a chance to network with new people and develop your own ideas—maybe even turn one into a business, Keinonen summarizes.
Participant Mahjbeen Arshab Abbasi also described the experience as inspiring:
– Hackathons are an excellent opportunity for students to build self-confidence and critical thinking. This experience challenged us to solve real-world problems under time pressure, forced us to collaborate efficiently, and gave us a strong sense of accomplishment, Abbasi says.
Testing the Winning Idea
Vivunity’s idea was quickly put into practice shortly after the hackathon. Tatiana and Valeriya first created a detailed questionnaire, and based on the answers, they matched suitable flatmates using their algorithm.
Joensuun Elli supported the trial by providing one shared apartment for the summer. Three residents were selected from dozens of applicants using the Vivunity algorithm. The trio will live in the apartment for free until the pilot ends. One resident already describes the experience as exciting:
– Joining this program is a totally new and exciting experience for me. But once I met my roommates, all uncertainties were settled. It is very nice to meet new friends, communicate with each other and share our own stories and cultures. For me, I am experiencing an unforgettable summer in Joensuu. And thanks to the Vivunity team, they make our living smoother and cozier, says one of the residents.
Tatiana and Valeriya stay in contact with the residents throughout the trial and continue to develop their concept based on the tenants’ feedback. The team has also received mentoring from Business Joensuu and was selected to join the Draft entrepreneurship program.
The goal is to develop Vivunity into a widely used platform for communal student living in cities across Finland, based on the learnings from this pilot.