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The QGIS project is a prominent open-source geographic information system (GIS) that has evolved over two decades, contributing significantly to the geospatial community. This paper presents the development, governance, and operational challenges faced by QGIS, providing an in-depth analysis of its growth from a hobby project to a global platform. We examine the project's organizational structure, release management, and infrastructure, alongside the financial model that sustains its development. The paper also addresses key challenges such as licensing complexities, group decision-making dynamics, and the balancing of innovation with stability in an open-source environment. Additionally, we highlight QGIS's broad applicability across industries and its continued success in fostering community-driven development.
Graser et al. (Tue,) studied this question.