Founded April 2025 · Budapest

Green Reliable Software Budapest

Practical green software for students, engineers, founders, researchers, and partners building around impact.

A local community exploring sustainable software, responsible engineering, and practical pathways to build systems that are reliable, useful, and aligned with long-term impact.

Part of the Green Software Foundation Meetup Community · Supported by Data Immigrant Kft.

Start here

Three ways to engage

New to the community? Choose the path that fits where you are right now.

Watch & Learn

Access past talks, recordings, speaker slides, and event recaps.

Watch videos →
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Join the Community

Meet students, engineers, founders, researchers, and partners building around impact.

Join Meetup →
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Build With Us

Explore open-source starter resources, projects, and practical build pathways.

Follow GitHub →

Latest recap

Countdown to HACK4EARTH 2.0

The next cycle turns community learning into practical open-source work. Europe is placing renewed emphasis on open and interoperable digital ecosystems; our local response is to prepare students and builders to contribute reusable, responsible software in public-interest areas.

The shared challenge is not that one community will solve the transition alone. It is that the transition needs more people who can translate ideas into reliable systems, open tools, clear documentation, and practical prototypes others can learn from.

Open sourceGreen AISustainable softwareStudent teamsOctober build cycle

The call to action: learn in public, build responsibly, document clearly, and make useful work easier for others to reuse.

Context: EU Open Source Strategy · European Commission open digital ecosystems update

2.0

October · Open Source Month

HACK4EARTH returns

Applications, challenge briefs, team formation, mentorship, submissions, demos, and post-event incubation pathways will be organized through the Knowledge Hub.

LearnTeamBuildSubmitIncubate

The idea

What is green software?

Green software is the practice of designing, building, and operating software with awareness of energy, carbon, infrastructure, hardware, cost, reliability, access, and long-term impact.

Energy Efficiency

Build systems that use less energy to deliver useful outcomes.

Carbon Awareness

Understand when and where software runs, and how energy sources affect impact.

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Hardware Efficiency

Use devices, servers, and infrastructure responsibly across their full lifecycle.

Free course

Green Software for Practitioners

A practical introductory course for software practitioners who want to understand the foundations of building, maintaining, and running greener applications.

Open Linux Foundation course →

Impact direction

A global technical talent pipeline, starting in Budapest.

The goal is to help students and early-career builders develop a wider professional toolkit before they enter the field: software engineering, open-source practice, sustainability literacy, systems thinking, documentation, communication, and responsible product judgement.

What we are trying to achieve

We participate in bringing solutions forward by turning events into learning records, open challenges, practical builds, and professional pathways. Budapest is the starting node: a local place to learn, meet, test, document, and connect before ideas travel outward.

Workforce context: LinkedIn’s green skills research notes that demand for green talent has been rising faster than supply, making practical education and early access increasingly important.

Read the green skills research →
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Agrifood

Regenerative agriculture, food systems, label literacy, field evidence, and supply-chain trust.

Energy

Carbon-aware computing, grid awareness, energy management, and software efficiency.

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Water

AI water footprint awareness, data infrastructure, and resource-sensitive design.

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Cities & public services

Open, interoperable systems, civic technology, procurement literacy, and public-interest software.

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Mobility & logistics

Efficient routing, lifecycle data, resilient infrastructure, and lower-waste operations.

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Circular economy

Repair, reuse, product data, hardware lifetime, and less extractive digital habits.

Knowledge Hub

Recaps that become learning pathways

The Knowledge Hub keeps event recaps, slides, links, and next-step pathways together so students can keep learning after each session.

From events to action

Hack4Earth and Green AI momentum

In October 2025, Data Immigrant helped organize the Kaggle Community Olympiad — HACK4EARTH Green AI Challenge, a month-long open-source challenge exploring how AI can be created and used with greater environmental care.

The challenge turned community learning into submissions, demos, and practical solution-building. The next step is to use the Knowledge Hub to prepare students earlier, coordinate teams better, and connect promising work to incubation and internship pathways.

400+participants
44teams
15final submissions
1 monthopen-source challenge

Partners & supporters

Partners, supporters, and ecosystem links

Our work grows through local venues, engineering teams, learning partners, and wider communities supporting sustainable software, student pathways, and responsible technology practice.

Green Software Foundation logo
Deep Ecosystems logo
Kaggle Community Olympiad logo
Finesse Troublemakers Group logo
Eco-office logo

Support the community infrastructure

Help fund student sessions, learning materials, event recordings, mentorship, and build labs.

View support tiers →