[#b_hack] – Baltic Sea Region Hackathon 2025
Get ready to geek out at [#b_hack] – the Baltic Sea Region Hackathon 2025, happening 24–27 July 2025 in the beautiful city of Lübeck, Germany!

This year’s [#b_hack] theme, “One Region – Borderless Innovation,” invites all tech enthusiasts, creative minds, and future shapers to connect across countries and co-create brilliant IT solutions that make a real impact.
Dive into the exciting worlds of AI, storytelling, prototyping, and more. Collaborate with like-minded young tech innovators from across the Baltic Sea Region and enjoy an all-expenses-paid adventure filled with creativity, networking, and unforgettable experiences.
_who can apply?
We’re looking for passionate changemakers aged 18–29, living in or from a CBSS Member State (Denmark, Estonia, Finland, Germany, Iceland, Latvia, Lithuania, Norway, Poland, or Sweden). Whether you’re into IT, social media, or simply want to help shape the future of our region — this is your moment!
Got skills in programming, IT, audiovisual tools, or graphic design? Amazing! Not a tech wizard? No problem — we’ve got specially designed non-tech sessions too, so there is a place for everyone.
_topics
You will join one of eight hackathon topics based on your skills and preferences. Working in small teams of about five, guided by a TH Lübeck coordinator, you will utilise datasets and tools provided by the TH Lübeck. The results of each session will be presented on the final day to VIP officials from the Land Schleswig-Holstein and the CBSS.
You will team up with around five participants and tackle one of seven exciting Hackathon topics tailored to your interests and skills. With expert guidance from TH Lübeck coordinators and access to top-notch datasets and tools provided by the TH Lübeck, you will co-create innovative solutions and showcase them to VIP officials from Land Schleswig-Holstein and the CBSS on the final day.
Get ready for an inspiring blend of learning, networking, and fun. Let’s bridge borders and shape the future — together!
#1. Hack the Grid – Smarter Homes, Lower Emissions
This track focuses on creating innovative household energy consumption strategies to reduce CO2 emissions and/or cut costs. Gain access to real-time and historical data from a Smart Home (e.g., Home Assistant), including Photovoltaics (PV), Battery Storage, hourly energy spot market prices, CO2-emission data of the national German grid, and Electric Vehicles (EV). Learn how to make homes more energy-aware using open-source software and smart-home platforms. This track is for outside-the-box thinkers, nerds, energy savers, or environmental activists.
We seek solutions that are:
- Innovative: E.g., utilise PV storage in winter or use an EV as a mobile household battery to lower your CO2 footprint.
- Impactful: Reduce costs or CO2 emissions (or better, both).
- Feasible: Easily implementable with smart-home platforms like Home Assistant, with measurable effects (simulated via Jupyter Notebooks or similar).
Technical requirements and skills:
Come as you are – just bring your laptop. You should be generally interested in data-driven approaches, but there is definitely no need to be a mathematical expert. If you master Excel, this would be sufficient. If some team members had experience with more sophisticated solutions such as Pandas or Jupyter notebooks, that would be a plus.
#2. Cross-Border Future Lab – A Design Thinking Workshop
The goal of this session is to design a fictional city or region without borders, where innovation flows seamlessly. Participants will get to know and experiment with different methods from Design Thinking, an iterative problem-solving approach that focuses on understanding user needs, fostering creativity, and rapidly prototyping solutions.
The structure will be roughly as follows, but participants are welcome to bring their own ideas and experiences to the workshop:
- Empathise: Brainstorming on barriers and opportunities in cross-border collaboration.
- Define: Identifying a key problem (e.g., mobility, administration, culture).
- Ideate: Using creativity techniques to generate ideas.
- Prototype: Creating a visual or physical model of the borderless city (e.g. using paper, Lego, digital prototyping tools…)
- Test: Feedback session.
Technical requirements and skills:
Come as you are – just bring your laptop.
#3. Borderless Wellbeing – Innovation for a healthy, connected region
In a borderless region, wellbeing should also have no borders. However, health services are often fragmented, difficult to access or limited to individual countries. This session is dedicated to designing a concept for a digital wellbeing platform that uses innovation to promote mental & physical health in a connected region.
Participants will develop a concept that connects cross-border health services, digital routines and community wellbeing experiences – regardless of location, culture or systems. Innovative methods such as intelligent functions or AI will also be considered.
The structure follows the design thinking approach:
- Empathise: Exploring the challenges around wellbeing without boundaries.
- Define: Identification of a core problem (e.g. lack of access, cultural differences, stress management).
- Ideate: Creativity techniques to generate ideas for innovative digital solutions.
- Prototype: Creating a visual or interactive prototype.
- Test: Getting feedback and iterating the design.
Technical requirements and skills:
You only need your laptop and an email address. No specific technical knowledge required; focus on conceptualisation and design thinking process.
#4. Borderless Entrepreneurship – Digital network for the Baltic Sea startup community
In the Baltic Sea Region, young founders, students and start-ups often work in isolated, highly fragmented networks – a problem that strongly limits the exchange of ideas, resources and opportunities. At the same time, students and regular employees are often left out, even though they have great potential for innovative collaboration.
This session focuses on designing a digital platform or App that acts as a central hub and facilitates access to co-working spaces, mentoring programmes and investors. The platform should not only serve as a pure exchange of information, but as a dynamic, interactive network that promotes intercultural and interregional dialogue and thus unleashes the innovation potential of the entire region.
The structure follows the design thinking approach:
- Empathise: analyse the challenges and needs of the regional startup community.
- Define: Identification of a core problem (e.g. lack of networking or information deficits).
- Ideate: Develop creative solutions for a digital network that offers a wide range of support.
- Prototype: Creation of a prototype that integrates central network functions such as mentoring, resource sharing and virtual events.
- Test: Obtain feedback to refine the prototype and adapt the overall concept.
Technical requirements and skills:
You only need your laptop and an email address. No specific technical knowledge required; focus on conceptualisation and design thinking process.
#5. RoomSwap – Accommodation for exchange students
Not all universities provide housing for their students. Often students rely on the local market and share accommodation. When going abroad, it becomes crucial to find accommodation at the destination. At the same time, students need to find someone to take over their room at the home university for the duration of their stay abroad. The task for this track is simple: Solve the accommodation problem for exchange students.
Tasks:
- Determine requirements for a platform for pairing outgoing and incoming students and discuss other approaches for solving the accommodation problem,
- Implement a prototype
Technical requirements and skills:
Laptop. Programming / Software Development
#6. Artificial Intelligence goes Borderline
Artificial Intelligence will overtake our planet and impact our precious lives (Source: trust me, bro). Today, we need to get ready to defend our privacy, our secrets, our data, and thus our lives. Under all circumstances, AI needs to be kept at bay. AI already screws our planet, by using up valuable resources. For instance, a typical data center uses up 0.9 megatons of clean groundwater just for cooling and 100 million kWh energy per year. No worries, we have a solution: EdgeAI! Running controlled models on a microcontroller enables us ultimate control over our data while it is resource-saving.
Tasks:
- Sketch out the problem and provide conceptual solutions (think-tank style!)
- Develop a prototype to showcase solutions on EdgeAI hardware (engineering style!)
Technical requirements and skills:
Laptop. Critical minds
#7. Baltic Sea Region – Visualising Climate Risks and Solutions
This session involves the creation of an interactive map to illustrate how climate change is affecting the Baltic Sea Region. The tool allows users to explore dynamic and engaging visualisations of key climate risks such as flooding, heat stress, coastal erosion and sea level rise. It helps to understand how climate change affects different parts of the Baltic region. It also supports planning and activism based on facts and encourages countries to talk to each other about environmental challenges.
Tasks:
- Develop an interactive map with zoom and explore functionality
- Visualise climate risks data
- Visualise local activities and call for action on the map
Technical requirements and skills:
Laptop. Programming and GIS skills will be beneficial.
_travel, accomodation & venue
Come as you are: all your travels, accommodation and most meals will be covered by the event organisers. If your application is successful, we, the [#b_hack] team, will get in touch with you regarding your travel arrangements. You will be staying at the H+ Hotel in Lübeck. The Hackathon will take place at the premises of Technische Hochschule Lübeck, University of Applied Sciences.
_additional information & resources
Application form: https://forms.office.com/e/Yn0trhEjED
The application window will close on 15 May 2025.
_organisers
The event is organised and financed by the German land of Schleswig-Holstein, in collaboration with the Council of the Baltic Sea States (CBSS) and Technische Hochschule Lübeck (TH Lübeck).
