FOSS4G 2025 Auckland Conference Registration
Going beyond all the common functions that most folks use PostGIS for. Delving into advanced use cases and using PostGIS in production workloads.
Got an idea for a geospatial product? Bring it along (or just bring yourself) and turn ideas into action. This hands-on session is for anyone wanting to explore, shape, or progress a product idea—with guidance from an experienced geospatial product consultant.
Combine deck.gl visualization, data processing, and AI APIs to create intelligent mapping applications. Build a real geospatial AI app from scratch, processing spatial data and generating insights through modern web technologies.
Explore cloud-native geospatial tools through this hands-on workshop utilizing Python Notebooks. This workshop introduces key concepts like STAC and COGs, and walks participants through real-world Earth observation analyses, empowering EO professionals to apply modern tools in their own work.
pygeoapi is an OGC Reference Implementation supporting numerous OGC API specifications. This workshop will cover publishing geospatial data to the Web using pygeoapi in support of the suite of OGC API standards.
This hands-on workshop walks through a full DGGS data pipeline. You'll use the FOSS tool DGGRID to index geospatial data and then publish it using pydggsapi, a new open-source server for the OGC API DGGS standard. Leave with a running web service on your laptop.
This workshop will cover the basics of setting up a GeoServer instance and adding vector and raster data to it, and applying styles to the data to produce a completed web map.
Learn how to create, publish, and manage interactive web maps using Re:Earth, a data platform with a low-code visualizer and content management system. This workshop is ideal for beginners and professionals looking to streamline geospatial communication on the web without programming.
Learn how to do fieldwork with QField and QFieldCloud, the fieldwork apps for QGIS.
This is the time where you can have a 30min break to recharge with Tea, Coffee, Juice, Water and Food
This is the time where you can have a 60min break to recharge with Tea, Coffee, Juice, Water and Food as well as visit our exhibitors and sponsors.
Learn to create a map from start to finish using QGIS and open data in this beginner-friendly workshop. No prior knowledge is required. By utilising open source software and data, participants gain hands-on experience in map creation while exploring cost-effective open-source tools.
This workshop will provide an introduction to performing common GIS/geospatial tasks using Python geospatial tools such as OWSLib, Shapely, Fiona/Rasterio, and common geospatial libraries like GDAL, PROJ, pycsw, as well as other tools from the geopython toolchain.
Dig into three cloud-native raster formats—COGs, Zarr, and Kerchunk—and learn how data access works under the hood with hands-on Python exercises, no image libraries required!
Introduction to spatial concepts for the Java developer. This is a great programmer first introduction to everything from geometry to map features and styling.
Workshop updated with latest Java 17, ImageN, and CQL2 technologies.
Discover how to access and analyze Sentinel satellite imagery in seconds using STAC APIs and Microsoft Planetary Computer. In this hands-on workshop, you'll use Python to fetch data, calculate vegetation indices, and build efficient Earth observation workflows.
Join us for QField Day 2025—a half-day of insights, innovation, and community. Discover how QField streamlines fieldwork through powerful features, plugins, and real-world use cases across various professional sectors.
This hands-on workshop teaches the basics of QGIS plugin development with Python. Participants will learn to set up their environment, build functional tools, and extend QGIS capabilities. Ideal for GIS users and developers, the session includes a practical project where attendees create and test a simple plugin.
XArray is a powerful Python package for working with climate and earth observation datasets. This workshop will be a structured introduction to XArray, STAC and Dask with use-cases focused on cloud-based remote sensing applications.
Create a tile server with the base map and some custom data. Build a web site with both the base map and custom data using MapLibre GL+Martin+PG+Planetiler+osm2pgsql+...
This is the time where you can have a 30min break to recharge with Tea, Coffee, Juice, Water and Food
OSGeo Oceania Annual General Meeting
A canoe trip down the Whanganui River in New Zealand, led by a Māori elder, awakens spiritual belief and practice, and becomes a call to action to draw closer to nature and fight climate change through a fundamental value shift.
FOSS4G 2025 Auckland Conference Registration
This workshop will give you hands-on experience using new Google Earth Engine Plugin for QGIS to combine their desktop-based geospatial workflows with cloud-based datasets.
Dig into geospatial vector formats—including GeoJSON, WKT/WKB, and cloud-native GeoParquet—using Python to see in detail how vector features are stored in each format and to understand what cloud-native means for vector data.
The .net-platform is gaining ground in the open-source community but is it for us “spatial-junkies”?
In this workshop we touch on the subject, going through possibilities and limitations of using .net in foss4g.
Database connections
Using existing spatial servers
Building your own spatial server
Frontend interactive maps
GeoServer is an amazing project, and an amazing project to work on!
For a little over a year now, QGIS' best field companion QField has gained a plugin framework that allows users to expand the capabilities of QField through QML and Javascript. This workshop introduces the framework and goes through practical examples aimed at empowering the participants into writing their own plugins.
This workshop is built around guided computational analyses of two particular climate risk scenarios—wildfires & floods. The goal is to support independent geospatial explorations using publicly available data products from NASA Earthdata Cloud and FOSS with Pythonic APIs on a cloud computing environment.
Geospatial workflows can be surprisingly energy-intensive. This workshop introduces Rust as a fast, efficient alternative to interpreted languages like Python and R. Learn how Rust’s performance and safety make it ideal for sustainable geospatial analysis, and explore the eorst toolkit for spatial data, raster processing, and modelling.
Calling all researchers, land managers, and FOSS4G hobbyists who need a modern web map. Using just a Github account, you can make a web map that is simple and free to deploy, is totally customizable, can be integrated into your CMS or modern web stack.
Terra Draw is a drawing library for cross-platform mapping libraries such as Maplibre, Leaflet, OpenLayers, Mapbox, Google Maps, ArcGIS. It brings advanced drawing features for all web map applications with a unified API. This workshop introduces you how you can develop drawing feature with Terra Draw in your application.
This basic workshops takes you by the hand to start using pgRouting's basic routing functionpgr_dijkstra.
This is the time where you can have a 30min break to recharge with Tea, Coffee, Juice, Water and Food
This is the time where you can have a 60min break to recharge with Tea, Coffee, Juice, Water and Food as well as visit our exhibitors and sponsors.
Join this hands-on workshop to learn how to build fully functional spatial APIs using PostgreSQL, PostGIS, and PostgREST. We'll cover setup, data exposure, and using spatial functions—empowering you to build powerful, backend-free geospatial services using just SQL.
Try Re:Earth Flow’s visual, browser-native interface to clean, join, and export spatial data—no coding required. In this hands-on alpha workshop, you’ll collaborate live and help shape the future of the platform.
Learn how to build and brand your own 3D geospatial data explorer using TerriaJS - without writing code!
A workshop to introduce the new Spring Boot architecture of GeoNetwork 5
HOTTOGO is a hands-on workshop introducing mobile mapping tools used in disaster response and climate resilience. Learn how to collect, navigate, and act on data using free, offline-ready apps built for fast, community-driven action—wherever you are, even without WiFi.
Open Data, Open Source, Open Standard: Quickly build your digital twin city with mago3D
The workshop will include a) field survey component where participants will be able to walk around Auckland to collect data points in QField for QGIS and b) a computer lab component where participants will use Digital Earth Pacific Python Notebooks to generate a land cover map.
This lab will introduce running GeoServer on AWS infrastructure using containerised deployment without needing to manage server infrastructure. GeoServer is an OGC compliant implementation of a number of open standards including Web Feature Service (WFS), Web Map Service (WMS), and Web Coverage Service (WCS).
Learn how OGC Building Blocks allow you to use open standards to improve user experience
Extreme heat poses major threats to human and environmental health and safety. In this workshop, you use Amazon SageMaker AI and open data from Amazon Sustainability Data Initiative (ASDI) to uncover patterns in vegetation and temperature, understand risks to urban areas, and simulate solutions that reduce risk to communities.
This QGIS workshop will raise your cartographic skills from "meh" to "magical". Co-presented by Mathieu Pellerin and Nyall Dawson, these two developers/cartographers are directly responsible for many of the cartographic features in QGIS, and together share over 3 decades experience in designing beautiful maps.
Placeholder for B2B Event at FOSS4G 2025
This is the time where you can have a 30min break to recharge with Tea, Coffee, Juice, Water and Food
Ice Breaker event will be held at the Maritime Room, New Zealand Maritime Museum.
Travel Grant Program Breakfast Event
FOSS4G 2025 Auckland Conference Registration
The opening ceremony for FOSS4G Auckland 2025
Over five years, and more than twenty thousand kilometres, our small team visited almost every ancestral Māori community of New Zealand to create the first ever map of ancestral marae. Our mission is to reconnect descendants with marae through our web platform – Maorimaps.com.
This keynote explores how feminist mappers from Geochicas around the world are transforming tech spaces by centering care, visibility, and collective learning in their communities
This is the time where you can have a 30min break to recharge with Tea, Coffee, Juice, Water and Food
This study compares CesiumJS and MapLibre GL JS performance for displaying large-scale 3D geospatial data from Japan's PLATEAU and VIRTUAL SHIZUOKA projects, finding CesiumJS excels with 3D Tiles while MapLibre GL JS performs better with lightweight vector data.
To develop a real-time model that incorporates current road conditions to estimate spatial access to health services daily, at the address level.
Obstore is the simplest, highest-throughput Python interface to Amazon S3, Google Cloud Storage, Azure Storage. This talk will explain what Obstore is, how it differs from existing Python libraries for cloud data access, and how it's being used to speed up cloud-based geospatial workflows.
Presenting everything MapLibre community has been working on, including tile serving, fonts and sprite handling, to visualizations for both web and native, to new types of tools and format standards.
QGIS is packed full of incredible features! We'll run through a few of our favourites, including highlights from the last few releases, and take a look at what's about to be unleashed in QGIS 4.0.
The very first open source geospatial foundation diversity statement … was about representation for the “C Tribe” and the “Java Tribe”! Check in with this presentation for an update from the Java crew!
An application case of combining open-source technology and AI to develop a Wildfire Spread Prediction platform that supports on-site decision-making.
This study assesses the reliability of Citizen Weather Stations (CWS) for urban heat analysis in Melbourne using CrowdQC+ and spatial interpolation. After quality control, 277 of 465 stations remained. CWS data recorded slightly higher temperatures than professional stations, with accurate predicted vs. observed comparisons (R² = 0.989; RMSE = 0.306).
This session follows on from the QGIS "Feature Frenzy" talk and is your once-in-a-lifetime opportunity to ask Marco Bernasocchi (QGIS.org Chairperson) and Nyall Dawson (QGIS Core Contributor) anything about QGIS.
Walk through of Helm charts and horizontal scaling approaches for GeoNetwork in Kubernetes, covering volume pitfalls like wro4j cache configurations, plus Locust benchmark techniques for user access testing
I will present the current state of mago3DTiler and mago3DTerrainer.
mago3DTiler is a Java-based OGC 3D Tiles creator that has gained wide adoption thanks to its flexibility, high performance, and extensive format support.
mago3DTerrainer is a Java-based quantized-mesh terrain generator designed specifically for Cesium Terrain Tiles.
Inspired by the Fellowship of the Ring, this talk shares how youth and community mappers across Asia-Pacific are rising as Open Mapping Gurus. Learn how regional collaboration, inclusive leadership, and open tools are transforming climate action and disaster preparedness—one map, one mentor, and one movement at a time.
Bridge is a plugin for your favorite desktop GIS that makes it easy to publish your data to map and catalog services. Soon it will also allow you to search and consume your OGC services.
Digital Twins address the fundamental challenges created by large volumes of geospatial data by enabling automated, near-real time processing and analysis, reducing the gap between data and the insights needed for decision-making. Here we present our open-source digital twin software framework, demonstrated through automated flood risk assessment.
Born from Christchurch’s earthquake recovery, an open geospatial platform supports everyday coordination of lifeline infrastructure. Built on federated data, open access, and stewarded by a public-good foundation, it embeds resilience into daily planning and enables smarter, faster responses to natural hazards and infrastructure disruption.
I am Harris Hudson and I aim to put climate, weather, and earth science, data directly into the hands of the everyday person. This discussion follows my research and recommendations regarding the future of visualisation of NetCDF Climate and Forecast gridded data.
Zarr is gaining traction in geospatial workflows—but is it replacing COG, complementing it, or something else entirely? We’ll unpack the formats’ shared foundations, explore their tradeoffs, and offer a path toward better community guidance, tooling, and support.
When passion for wine meets GIS expertise, QField 🍇💻 becomes the foundation for intelligent vineyard management.
Discover the story of Jojo’s Vineyard: Advanced QGIS symbology, map themes, and data capture combine to create an optimal tool for digital vineyard management.
Could this be the future of (Q)wine in Aotearoa?
This is the time where you can have a 60min break to recharge with Tea, Coffee, Juice, Water and Food as well as visit our exhibitors and sponsors.
Flooding is one of the costliest hazards facing Aotearoa. We present a methodology for creating nationally consistent flood-maps for a range of current and future climate scenarios developed by the Endeavour Mā te haumaru ō te wai: flood resilience Aotearoa. The maps are shared in an open-data repository.
Journey through the mathematical elegance of A5's pentagonal spatial indexing system. Discover how dodecahedral geometry, vertex curvature minimization, and equilateral pentagon tiling create superior spatial accuracy. A highly visual exploration of the geometric principles that make A5 equal area cells possible.
A behind the scenes look at how a kiwi cartographer uses QGIS, Blender, and Cura Slicer to turn elevation data into 3D printed landscape models.
GeoServer is a web service for publishing your geospatial data using industry standards for vector, raster and mapping, as well as to process data, either in batch or on the fly.
TerriaJS is an open-source framework for web-based geospatial catalogue explorers. It uses Cesium and Leaflet, and it supports over 50 different Web APIs and file formats. In this talk, we will cover the background of TerriaJS, its current state, new features, and future plans for the project.
We present a scalable, interoperable, and extensible FOSS architecture for modern geospatial data ecosystem, based on DGGS. Exemplary, we introduce pydggsapi, a Python server implementing the new OGC DGGS API, that can serve large geospatial datasets from cloud-native Zarr and Parquet data stores indexed by a DGGS.
How Re:Earth Visualizer turns GIS into an interactive medium connecting citizens and governments.
We put together the most popular opensource GIS dataset in Australia: the Geocoded National Address File -- the most downloaded dataset from data.gov.au. This talk will share the journey and discuss some of the challenges to maintain various insightful GIS datasets everyday.
How CTrees wrote open source code to complete zonal stats in order to move from science results (rasters) to interactive mapping apps.
This talk presents applications of GeoAI using street-level imagery and spatial analytics: detecting and mapping traffic signs, prioritising urban heat mitigation for active travel, assessing liveable streets through social-spatial configurations, and comparing perceived versus measured built environments. Together, they demonstrate scalable, data-driven approaches to inform urban planning.
UN Smart Maps Group is testing new technologies for future geospatial operations. This presentation showcase the latest advancements in the UNVT POD (Portable on Demand) and FOIL4G (Free and Open Information Library for Geospatial), integrating Tippecanoe, MapLibre GL JS, go-pmtiles, and Martin with Generative AI and classic UNIX utilities.
This talk will do a deep-dive into QGIS Model Designer for building fast, automated and reproducible workflows. We will cover real-world use cases and share tips to help you leverage the no-code framework provided by QGIS.
Melbourne’s tram network is considering Mobility Aid Lifts for wheelchair access from street level on selected routes. We scanned and processed 80km or routes with OS only in an ROS sensor framework with cloud-optimised data processing to detect stops and simulate MAL deployments.
EOPF Toolkit - Python and R Zarr access
We apply the Community Capitals Framework in small rural Midwest communities using FOSS and open data. Our case studies demonstrate how regional access to services varies across rural places—and how, within those places, spatial analysis reveals localized gaps in access to essential assets like healthcare, broadband, and public infrastructure.
DuckDB, GDAL, and libraries like Lonboard can now efficiently share large vector data at low cost, thanks to GeoArrow. This talk will explain what GeoArrow is and how to get the best performance when sharing data between these libraries with practical examples.
UNVT Portable, a Raspberry Pi server, streams PMTiles from a microSD card (up to 512 GB) without internet or database. Preloaded with OSM Planet, global DEM, and thematic layers, it’s benchmarked against cloud solutions for latency, throughput, energy, and storage efficiency, proving effective for UN field operations.
Japan International Cooperation Agency (JICA) is implementing a co-creation, innovation and circulation initiative for updating its development cooperation by adding geospatial data on OpenStreetMap. This presentation will introduce the use of open source tools developed for OpenStreetMap to create maps useful for activities in JICA.
This is the time where you can have a 30min break to recharge with Tea, Coffee, Juice, Water and Food
The National Center for Geospatial Data (CNDG) of Timor-Leste is implementing a spatial data ecosystem using cloud-native technologies in an experimental basis. Application of go-pmtiles, Tippecanoe, MapLibre GL JS, Martin, and GitHub Pages are introduced with some support from geospatial unit of Japan International Cooperation Agency (JICA).
Distributing spatial data is a major challenge. This talk walks-through different strategies you can take to simplify your spatial data for distribution, and under what circumstances you might make each choice, including: reducing precision; filling holes; Ramer-Douglas-Peucker and friends; and raster and vector conversion.
Learn to render interactive indoor maps with MapLibre and IMDF. This session guides you through the complete workflow, from data processing to creating a map with dynamic features like searching for open stores and locating amenities within large facilities.
Get familiar with the latest QFieldCloud development, QFieldCloud RESTful API and the QFieldCloud SDK.
National Land Survey of Finland has developed Topograhic Data Production System mainly based on Open Source solutions. Most important components are PostGIS, QGIS and QField. The production started successfully in April 2025. This is very exceptional use case how National Mapping Agency is updating Topographic database.
The initiative aims to launch OSM-based clubs in primary schools across Addis Ababa, promoting environmental awareness and digital literacy among children, and building a foundation for future YouthMappers through fun, educational, and community-centered activities.
Plastic pollution threatens Pacific ecosystems and livelihoods. The CleanSeas project uses Earth and ocean observation, machine learning, and on-ground validation to track marine debris across land, rivers, and sea. This presentation highlights DEP tools, showcasing how open data informs policy and enables targeted, cross-domain responses to pollution hotspots.
Zarr is a cloud-native format, and now it can be GPU-native too! We address one of the main bottlenecks of geospatial machine learning, which is on the data loading stage. Let's see how we can read and decompress data from Zarr directly into GPU memory!
eoAPI is an open-source toolkit for building scalable Earth Observation applications. We discuss the state of core components like pgSTAC, TiTiler, and STAC-FastAPI, introduce new tools like stac-auth-proxy and stac-manager, and highlight recent infrastructure work in AWS CDK and Kubernetes for deploying production-ready services.
This talk will take you through my journey of building Spatial Thoughts and share insights into what it takes to build a education business powered by open content and open-source ethos.
A retrospective on building cirrus, a cloud-native framework for building STAC-based data orchestration pipelines. We'll look at the design and architecture evolution over five years of development and some lessons learned adapting to ecosystem and requirement changes.
AI may push open-source geospatial software toward fragmentation or stronger, well-governed cores. This talk looks at how AI now — and fully automated code generation in the future — could reshape collaboration, trust, and the enduring value of geospatial expertise.
In Tanzania, OMDTZ, CartONG, and Emergency-Response Team built a community-led dashboard using OSM and local knowledge. Instead of high-tech sensors, they used phones, maps, and local insights to collect data. Session shows how anticipatory action starts with trusted community input, enabling faster, informed disaster preparedness and response.
Groups have wrangled sufficient number of GPU's to scan through a lot of satellite data to create a good set of weights. This talk scans through a few GeoFM's (Geospatial Foundation Models) and how to put data through them while loading it via OpenDataCube.
Uber H3 has revolutionized spatial indexing, but its cell sizes vary a lot. I will introduce IGEO7, an aperture 7 hexagonal equal-area DGGS with its hierarchical indexing system Z7. It is now implemented in the open-source software DGGRID and has a handy Python wrapper, dggrid4py.
This talk introduces a new drawing plugin for MapLibre: maplibre-gl-terradraw as an alternative of historical mapbox-gl-draw. maplibre-gl-terradraw has specifically been developed for Maplbire with a simple API to bring Terra Draw to your Maplibre with a single line of code.
Explore how cql2-rs, a compact Rust library for working with OGC CQL2 expressions, powers validation, conversion, and evaluation across environments — from Rust to CLI, Python, and WebAssembly — and how writing small, reusable Rust utilities can extend impact across languages and platforms.
A summary of the GNSS-IR method and a discussion on the deployment of a low-cost, Raspberry Pi-based GNSS-IR system for field-scale soil moisture monitoring.
To provide geospatial mapping training and raise awareness on the use of geospatial tools to empower Pacific Women — including young women, women with disabilities, and women from outer islands in mapping to access, utilize, and apply mapping resources for community development and decision-making.
We are developing a system to mitigate the risks posed by heavy snowfall.
To achieve this, we are using remote sensing data from South Korea's radar sensor.
Our backend comprises GDAL, PostGIS and GeoServer.
The front end uses OpenLayers.
This system will enable us to predict damage to greenhouses
Leave-one-field-out tests on Malawian smallholder plots compare multiband/index linear regression, XGBoost, CNN-LSTM, a frozen ViT and a ViT-LSTM on Sentinel-2 VT–R1 stacks. ViT-LSTM delivers the best accuracy (RMSE 0.022 t ha⁻¹) but runs 2.5 × slower than CNN-LSTM.
Re:Earth is an open-source WebGIS platform designed to make publishing, sharing, and using geospatial data open and sustainable. This talk highlights current challenges in the geospatial ecosystem—fragmentation, vendor lock-in, and massive data complexity—and shows how open technologies can build shared digital public goods for everyone.
Conference Dinner Event on the waterfront
Women in Geospatial Breakfast Event
FOSS4G 2025 Auckland Conference Registration
This talk discusses workflows implemented in Python for processing bathymetry data for hydrodynamic modelling applications.
DigiAgriApp is a multilingual, open-source platform for precision agriculture, supporting field monitoring down to individual plants. In 2025, there are several new innovations at the software level, but especially for the new public servers.
Learn the basics of what it means to have cloud-native geospatial infrastructure, and explore how you can convert your existing data architectures to be more performant with less cost.
Kart brings Git-style version control to geospatial data, enabling teams to track changes, create branches, and collaborate on spatial datasets just like code.
https://kartproject.org/
This paper highlights the datasets, analytical tools, computational capacity and insights made possible through Digital Earth Pacific (DE Pacific). The paper focuses on the use case of participatory land use land cover model calibration and validation using QField and the Digital Earth Pacific Jupyter Analytics Hub.
This presentation investigates whether Large Language Models (LLMs) possess adequate knowledge to function as effective intermediaries between non-expert users and FOSS4G CLI tools. We assess the capability of current LLMs to correctly respond to queries requiring geospatial domain-specific knowledge and generate appropriate solutions for spatial analysis tasks.
"Osmia" is an Javascript/Openlayers web app that interrogates OSM metadata to find areas of the road network that need mappers attention. Highways that have not been edited in a long time are highlighted to the user.
This study presents the accomplishments in establishing a Blue Carbon database and developing a GIS-based digital information map system to support effective management and decision-making along the Korean coast.
A metaverse-based training engine is developed to enable high-precision 3D simulations for scientific training environments, enhancing decision-making and spatial analysis through realistic geospatial data and interactive tools.
This talk showcases OSGeo Nepal’s journey as a new OSGeo local chapter, highlighting its grassroots growth, student-led initiatives, and collaborative projects. It demonstrates how a young, volunteer-driven community can make a meaningful impact through inclusive working groups, regular events, and partnerships with academic and professional organizations.
An elegant, functional and well-built webmap is a true work of art. With our friends Svelte, MapLibre & PMTiles, you can make your dream map come true.
The Australian Ocean Data Network has built a system to ingest ocean data and make it discoverable to end users. This talk will demo the system and look at the open source technologies, emerging and traditional, that we've used to make it secure, scalable and adaptable.
The Open Data Cube is a big, complicated tool that does a lot of things, and it's a little old. It's been replaced with a small complicated tool, which does less things more simply, which is great. This is a talk about that.
To overcome the long-standing underutilization of paper and unstructured data accumulated by MLIT, LINKS Veda has been launched. This talk introduces methods to enhance the quality and speed of policy-making through AI technology, no-code processing, and geospatial data utilization.
This talk will take you on a whirlwind tour of hidden and advanced features of the world's most popular open-source desktop GIS.
The weavingspace python module enables creation of thematic maps using periodic tilings to produce attractive maps that weave together many data attributes in a single map display.
Learn how to start using Leaflet, OpenLayers and MapLibre open-source mapping libraries to transform how you build and deliver interactive web maps. We will explore the differences between these libraries, compare their capabilities and go through simple examples to get YOU started lightning fast before you can pronounce FOSS4G.
This presentation will introduce a system that leverages GTFS data to visualize bus locations on a map for any chosen time and date.
I developed a Python-based solution that extends QGIS routing capabilities by calculating longest paths in road networks using NetworkX and modified Dijkstra's algorithm. This approach transforms traditional shortest-path analysis into maximum distance exploration, could be applied in tourism route design and hydrological analysis.
A whirlwind tour of LINZ's latest open datasets and useful platform features.
This talk highlights the diversity of our global community and showcases tools and contributors not otherwise featured at FOSS4G 2025.
Object storage gave us scale, durability, and low cost–the foundation of cloud-native geospatial. But what if it’s also our biggest problem? This talk explores why the object model fails multidimensional datasets, and how the Coalesced Chunk Retrieval Protocol could restore seamless user experience at cloud scale.
UN Open GIS Initiative has been developing an open source GIS bundle for UN operations since 2016. This presentation will introduce its activities such as hybrid GIS development and capacity building. This presentation will also introduce the future directions for the second decade of the initiative, for open discussion.
This presentation shares how open-source mapping tools were used to collect data on buildings and infrastructure in Kiribati, Tonga, and Vanuatu. The data helps governments understand which areas are most at risk from disasters like cyclones and floods, and supports better planning for safer, stronger infrastructure.
This presentation will share how community members are being trained to leverage the use of measurable local data in decision making using Free and Open-Source software such as QGIS, GeoJSON.io, Google Sheets, GitHub, and Tableau Public.
eo-tides provides powerful open-source tools for combining satellite Earth observation data with tide modelling. These tools can be applied to petabytes of freely available satellite data, providing a suite of flexible tools for efficient monitoring and mapping of coastal and ocean environments – from regional, continental, to global scale.
Feature frenzy of 10 years of pgRouting evolution: On 2013 with the new version 2.0 there were only 11 graph functions, now after 12 years we have 89 functions and a grand total of 222 different signatures, when variations or overloads of the functions are considered.
OSGeo Nepal has been building an inclusive and active open geospatial community, with a strong focus on youth empowerment through open data. By forming a network of over 150 members, OSGeo Nepal is equipping the next generation with tools to access, analyze, and contribute to open datasets.
A friend sent me a message asking if I could extract the Te Arai River outline in Tai Rawhiti for a tattoo idea he had.
Using QGIS, GRASS and Python along with LINZ Dataservice to calculate shadow impact of trees 50 years in the future.
Digital Earth is implementing a Machine Learning Operations proof of concept for an automated system designed to support development, training, and release of complex ML models for satellite imagery such as artificial surface detection. Talk will share architecture and learnings, focusing on integration of open-source components with cloud services.
This is the time where you can have a 30min break to recharge with Tea, Coffee, Juice, Water and Food
This presentation highlights Malaysia’s I-Plan system, which empowers urban planning through open geospatial technologies. By integrating multi-source land use data, I-Plan enhances planning efficiency, transparency, and collaboration. Key lessons on data harmonization, stakeholder support, and capacity building will be shared to inspire similar initiatives.
We interact with urban form everyday. It dictates where and how we live, move, build and interact with people and services in our cities. This talk will introduce the exciting world of urban morphometrics - measurements of urban form and their implications on urban evolution, function and performance.
The Open Source Geospatial Foundation is a not-for-profit organization whose mission is to foster global adoption of open geospatial technology. This talk introduces the foundation and talks about challenges and ideas for its future.
We introduce PyForestScan, a Python library that streams LiDAR data and outputs GeoTIFF canopy height, cover, foliage-height diversity, plant-area-index and density layers. We demonstrate it by mapping forest metrics on Hawai‘i Island’s 1 M-ha, 1.8 B-point survey into 1–30 m grids.
We introduce a method for displaying global point cloud data using the open-source, scalable display system ChOWDER, which distributes rendering of 3DWebGIS across multiple web browsers. We discuss current challenges, such as rendering artifacts arising from the conversion of Earth-scale data.
Explore STAPI, a specification for a Sensor Tasking API. We’ll highlight recent developments, showcase the open-source projects being developed in the ecosystem, and share the community's vision of increased interoperability driving the next generation of geospatial workflows.
The AWS Open Data team will discuss how to use datasets in the Registry of Open Data as Amazon Bedrock Knowledge Bases. With Amazon Bedrock Knowledge Bases, you can give foundation models and agents contextual information from private and public data sources to deliver more relevant, accurate, and customized responses.
Icechunk 2.0 is a transactional, cloud-native storage engine for Zarr. This talk introduces powerful new features for transactionally managing massive geospatial arrays, including efficient appends/inserts.
Powered by a newly architected headless map engine written in Rust and WebAssembly, Navara combines photorealistic rendering, unconstrained custom-shader freedom, and a high-performance API in a single platform. This session introduces the technology behind Navara and showcases the real-world use cases these capabilities unlock.
This study investigates forest disturbance patterns across Maharashtra using multi-temporal remote sensing data. By analyzing vegetation indices and land surface temperature trends from 2014 to 2024, the research identifies key spatiotemporal shifts in forest cover. The findings contribute to understanding ecosystem dynamics and support forest management and conservation strategies.
The United Nations Vector Tile Toolkit (UNVT) is a collection of Open Source Software (OSS) to produce, host, style and optimize vector tiles. This session introduces how the UN uses this technology in web mapping.
We introduce vrpRouting, a PostgreSQL/PostGIS extension embedding meta-heuristic VRP solvers. It returns LINESTRING routes and stop attributes, solving multi-depot, pickup-and-delivery, and time-window problems at city scale while enabling fully in-database optimization of stored road networks and logistics data.
People love to throw everything including the kitchen sink onto their maps mistakenly thinking more information is better. This leads to a mental burden, making the map harder to read and putting some readers off entirely. This talk will cover designing maps which are clear, uncluttered and support the viewer.
This presentation is an in-depth status update on GeoServer 3, an overhaul of the popular open-source server for spatial data and web services. Supported by a community-driven crowdfunding effort, GeoServer 3 modernizes the platform’s foundation to ensure it meets the growing demands of the geospatial community.
Since 2020, Japan’s MLIT has led Project PLATEAU, releasing 3D city models. Despite efforts, only 62% of buildings are mapped. OSM Japan is using the "citygml-osm" converter. This presentation proposes a one-year roadmap to complete building mapping, optimizing data imports, and community collaboration.
Deforestation and forest degradation in the Pacific is an ongoing threat to biodiversity, ecological connectivity and livelihoods. These processes have catalysed rapid expansion of invasive flora constituting severe land degradation. Using Digital Earth Pacific, we are better able to monitor the sprawling expansion of these invasive species.
GRASS is an open source geoprocessing engine for efficient spatio-temporal data management, analysis, and modeling. The software comes with C / Python / R API, command line and graphical user interfaces.
In this talk we will give a comprehensive overview of the latest GRASS developments and upcoming new features.
Showcasing regional ocean model outputs, this talk will focus on structuring analysis-ready data using the unstructured grid (UGRID) standard, our successes (and failures) in our CSIRO team using Xarray and QGIS for these tasks, and improving the uptake of these standards in the FOSS community.
This is the time where you can have a 60min break to recharge with Tea, Coffee, Juice, Water and Food as well as visit our exhibitors and sponsors.
This presentation covers the development of a national data cube for Estonia, integrating remote sensing data and using open-source tools. It provides analysis-ready data for biodiversity and carbon research, overcoming technical hurdles. User-friendly tools and cloud computing enhance data access, empowering informed decision-making for sustainable development.
This study examines knowledge-sharing practices among professionals in the free and open-source software community. It emphasizes the concept of knowledge community by applying Bona Fide Group Theory, and explores the mechanism of knowledge sharing across boundaries from a cross-cultural perspective.
The Centre for Australian Research into Access has been utilising the fast-calculating methods of the Pandana library in combination with Geopandas methods to perform continental-scale network analysis. Outputs of our work attempt to highlight the importance of address-level spatial analysis when assessing accessibility to services.
What even is Intellectual Property? I thought this was a Free Open Source Software conference!
I'll talk about potential issues with software licensing and other boring but important topics to ensure everyone keeps having a good time (except the lawyers).
How QGIS was used to help review and define New Zealand's electoral boundaries.
Re:Earth Flow is a new visual ETL tool for geospatial data—fully browser-based and built for collaboration. See the alpha in action, learn how it works, and find out how to get involved early.
Behind every early warning system is a community that knows where it floods, who is at risk, and how to respond. This session shows how OMDTZ uses OSM and open tools to empower youth, elders, and leaders, placing them at the center of anticipatory action and transforming vulnerability into resilience.
MapProxy is a lightweight geospatial proxy server supporting WMTS, WMS, and TMS. We utilize its plugin system to enable COG, vector tiles, and 3D Tiles support, facilitating integration of modern 2D/3D geospatial formats into open-source enterprise GIS workflows with enhanced interoperability, scalability, and cost-efficiencies in enterprise environments.
ZIP uses QGIS, QField, and QFieldCloud to coordinate rapid field responses against invasive predators, helping achieve their mission of a predator-free New Zealand with powerful, real-time open-source tools.
Pacific Ocean Portal 2.0 is a robust, open-source platform empowering Pacific nations with seamless ocean data access, advanced GIS management, visualization, and sector-specific tools. It supports collaboration, real-time monitoring, and expert resources, strengthening ocean services and climate resilience through unified, actionable information for regional stakeholders.
When critical Sentinel-2 index data went missing before a deadline, we rapidly rebuilt coverage using Sentinel-2 UTM Tiling Grid (ESA), filtered cloud and shadow pixels, and inserted clean values into the database. This talk shares practical steps, code, and lessons learned from urgent environmental monitoring under time constraints.
Public Participatory Geographic Information Systems (PPGIS) is a map-based survey method enabling citizens to contribute geographic and non-geographic information for planning and research.
In this presentation, we discuss a framework of GeoAI for object detection and classification based on OGC standards. This framework has been developed as OGC pilot project, tested for UN VMC, and composed of multiple open-source modules communicating via OGC standards.
Artificial Intelligence is reshaping GIS, and QGIS plugins are catching up fast. This talk explores how AI and large language models (LLMs) can enhance geospatial workflows. We’ll cover key concepts, demo real tools, and ask: do they work, can we trust them, and what are the trade-offs?
Explore how extensive building data in Thailand is efficiently managed using innovative virtual tilesets. Learn about data partitioning with Google’s S2 grid system, transforming and merging thousands of 3D assets for scalable visualization, and the advantages this method offers for effective geospatial data handling.
AI systems writing code, international tensions, trade wars and real wars. What challenges do we face, and what opportunities do we have as free and open source communities?
This project develops an open-source-based platform that visualizes urban traffic simulation data using various techniques and presents a way to intuitively understand complex movement patterns.
This is the time where you can have a 30min break to recharge with Tea, Coffee, Juice, Water and Food
This presentation examines the transformative impact of open geospatial data (CSDI Portal) on geospatial analysis and predictive modeling in Hong Kong. It showcases innovative projects that leverage AIoTs and GeoAI to offer actionable insights for urban planning/public health. Forecasted outputs disseminates through interactive dashboard for real-time visualization.
Explore how to quickly access and analyze Sentinel satellite data using STAC APIs and the Microsoft Planetary Computer. In this talk, we’ll demonstrate how Python makes it easy to fetch imagery and calculate vegetation indices in just minutes.
Review of the current state-of-art of open source, offline capable, mobile geospatial data collection using the KoboToolbox toolset, based on Open Data Kit standards.
Learn how AnyTrip built a turn-by-turn navigation and real-time tracking app for bus drivers using GTFS, OSM, Valhalla, OSRM, and other open-source tools - tailored for the unique needs of public transport and deployed in the real world on low-cost mobile devices.
pygeometa project status presentation. Come and find out the latest news on the project as well as future plans, and how to get involved!
OGC wants developers more involved in testing and developing standards - and making sure standards have direct benefits in your work.
This lightning talk highlights the progress of forming a FOSS4G community in Bulgaria. After two local FOSS4Gs and one OSM mapathon we are still on our way of establishing the core of the community. These milestones represent significant progress and open up exciting opportunities for collaboration, learning, and growth.
ORA Reefs aims to restore degraded rocky reef ecosystems across Tīkapa Moana by removing large-scale kina barrens. To support marine habitat identification and monitoring, we are developing a classification pipeline in Python and QGIS. Using the Depth-Invariant Index to isolate seabed reflectance from water column reflectance.
We propose a semantic spatial search architecture that understands users’ natural language requests and precisely retrieves optimal locations from PostGIS and pgVector using NL2SQL.
This project builds a scenario-based simulation platform for urban planners and policy makers, presenting a real-time integrated workflow that supports the entire process from scenario creation to result analysis and comparison.
This paper introduces a scalable open-source system using GRASS, TorchGeo, Python libraries, and HDF5 to map impervious surfaces from orthophotos and Sentinel-2 imagery. Outputs are vectorized, compared with agricultural and forested lands, and analyzed for environmental impacts like soil sealing to support sustainable land management and restoration.
Meet A5, a new pentagonal geospatial indexing system with truly equal area cells offering millimeter precision. Discover why pentagons solve fundamental limitations of existing hexagonal systems like H3, and explore real-world applications from urban planning to environmental monitoring.
This presentation highlights the feasibility and impact of teaching “Cloud-based Open-source GIS Solutions” through student-developed applications. Featuring five selected apps, it demonstrates how project-based learning fosters practical skills, innovation, engagement with open geospatial technologies, preparing students to contribute effectively to the evolving landscape of open GIS.
It can be a hard problem for casual community football groups to line-mark the outline of a football pitch rapidly and dynamically, in varying temporary locations and sizes, on public grounds. Can GIS fix it?
This contribution reviews how open standards and open-source technologies enable integrated, transparent, and sustainable workflows for managing bridges, tunnels, and roads. It highlights how open ecosystems can overcome data silos, support digital twins, and enhance long-term monitoring, regulatory compliance, and collaboration in infrastructure asset management.
Abley’s open-source mapping stack powers high performance apps and APIs using PostGIS, GeoServer and MapLibre. The architecture underpins Abley’s SafeSystem data platform and road safety applications. This presentation, aimed at spatial developers, explores the stack’s architecture, discusses engineering challenges encountered and presents key learnings.
Learn how to bring real-time observability to your web applications using monitoring tools. We’ll cover how to track errors, performance bottlenecks, and user-impacting issues without drowning in logs.
Workflow demonstration converting 20GB+ raster datasets like GEDTM30 global DEM to H3 hexagonal grids at resolution 12. Complete pipeline uses GDAL, DuckDB, and GeoParquet for QGIS visualization. Benefits include eliminated projection boundaries, consistent global coverage, and scalable OGC REST API with O(1) retrieval performance for modern cloud-native workflows
Safe n Redi is a regional platform supporting disaster preparedness through local mapping of churches, community halls, and shelters. This talk highlights how trained volunteers use KoboToolbox and QGIS to assess evacuation readiness and improve resilience from the ground up in Fiji, Tonga, Vanuatu, and Solomon Islands.
TerriaMap is just a wrapper around TerriaJS core. This talk will demonstrate how to strip away the default UI without touching the core and add two custom controls: switching between 2D/3D view modes and toggling base maps.
Reading a Cloud-optimized GeoTIFF involves several steps, from fetching compressed bytes over a network/disk, decompressing those bytes, to finally parsing of TIFF tag metadata. Can we speed up the decoding using asynchronous methods, or even GPU-accelerated libraries? Let's see how we can program this in Rust!
This work proposes a methodology for assembling Urban Digital Twin prototypes using solely open data and open source software. It outlines a three-component architecture for processing, data storage, and extensibility, and its implementation, showcasing a cost-effective, scalable solution, demonstrated via a test case.
TomTom partners with communities worldwide to build richer maps through collective action. In this FOSS4G session, we share how we support university mapathons, YouthMappers, and humanitarian mapping in 189 countries, reflecting on learnings and challenges in scaling community engagement while advancing OSM’s mission through meaningful, local partnerships.
In the rapidly evolving world of agriculture, the integration of digital technology has become imperative for advancing productivity, sustainability, and customer satisfaction. Join us to discover how placing farmers at the heart of digital innovation is revolutionizing agriculture, making it more responsive, efficient, and sustainable.
In this presentation I demonstrate how to use the LUMASS visual modelling environment to develop high-performance parallel raster processing models without writing a single line of code. LUMASS models are scalable and run on laptops as well as distributed memory systems. https://manaakiwhenua.github.io/LUMASS
GeoChicas is a group of women who do mapping in OpenStreetMap and work to close the gender gap in the OpenStreetMap community.
FOSS4G 2025 Auckland Conference Registration
A 3D WebGIS Information Extraction System was developed to retrieve and visualize Mobile LiDAR Survey data by integrating spatial objects with attribute information. The system aims to have a user-friendly interface and uses free and open-source technologies including Python, HTML5, JavaScript, PostGIS, GeoServer. Leaflet and Cesium.
Interactive visualization is often a precursor to extracting meaningful insights from data. Lonboard provides 30-40x faster performance for visualizing geospatial vector data than other Python libraries, supporting millions of coordinates.
ogc-cite-runner is a software to help automate OGC CITE compliance testing for geospatial web applications. It can be used either as a GitHub action or standalone. Learn more about it at https://osgeo.github.io/ogc-cite-runner/
This study presents a gamified educational framework for teaching urbanism using open-source tools. Combining MLIT PLATEAU (GIS data), Blender (3D modeling), and Godot (simulation), it enables youth to engage in participatory placemaking while learning spatial thinking and urban design through an accessible, interactive digital workflow.
We present i.hyper, a multimodular toolset for processing hyperspectral satellite imagery in GRASS. It supports the import of PRISMA, EnMAP and Tanager products through a dedicated import module and provides preprocessing, visualization and export. The i.hyper addon is available in the official GRASS Addons repository.
This study examines knowledge-sharing practices among professionals in the free and open-source software community. It emphasizes the concept of a knowledge community and knowledge sharing across boundaries from a cross-cultural perspective. It offers practical implications to professionals facing linguistic challenges and nourish a sustainable community culture.
Introducing the re-newed raster image procession engine for the Java GeoSpatial Community.
The Python Pandas library makes data analysis fast and intuitive. Learn how to load datasets, filter and transform data, perform basic calculations, and export results - all using Pandas. Stacy will present a beginner-friendly workflow using Python Notebooks, tailor made for rapid experimentation and iteration.
The Fiji Bureau of Statistics, in collaboration with SPC’s Statistics for Development Division, has developed the 2023 Fiji Population Grid—a high-resolution spatial dataset modeled from the 2017 Census and projected to 2023
Most OGC services are deployed with only functional testing, leading to failures under real user loads. Our open-source Locust framework generates realistic geospatial requests with random bounding boxes and dynamic coordinates for proper load testing
Learn how to turn your PostgreSQL database into a powerful RESTful API using PostgREST. This talk focuses on exposing geospatial data and leveraging PostGIS functions to build scalable, efficient spatial APIs—all without writing a single line of backend code.
Digital Earth Pacific (DEP) adapts proven Earth Observation frameworks and standards to the unique needs of Pacific island states. Presentation explores DEP’s regional scaling journey, highlighting design choices, partnerships, data architecture that address scale, capacity, and sustainability - advancing equitable cloud-native EO infrastructure for sustainable development in the Pacific.
Designing a flood mapping workflow using a few standard python libraries to efficiently process high resolution data at-scale.
From aerial imagery, to digitization, field mapping and data use, we're building an integrated tech suite for humanitarian open mapping
An introduction and overview of the capabilities provided by the Free and Open Source Software Discrete Global Grid Abstraction Library (DGGAL) https://dggal.org https://github.com/ecere/dggal
Quick check in with the GeoTools project!
“Vibe coding emphasizes creative flow: the human developer accepts AI-suggestions liberally and focuses on iterative experimentation rather than code correctness” (Wikipedia). I am an Academic working with FOSS4G for 20+ years. Am I a Natural Intelligence vibe coder? This is that story.
A web-based GTFS timetable viewer that processes General Transit Feed Specification (GTFS) data entirely client-side using SvelteKit. Users can upload GTFS ZIP files and instantly visualize transit schedules in an interactive timetable format with real-time status indicators.
A web platform to transform workflow: leveraging open-source tools for powerful visualizations, cloud-optimised geospatial formats for scalable data access, Python's geospatial ecosystem for processing pipelines, and carefully constrained LLMs to automate report generation while preserving expert methodology.
Mapping Storm (spoiler - not storm mapping!)
I'll show you how i built a simple web application that uses open source tools and open data to estimate NZ census counts within custom geographies.
I'll share some tips and tricks i learned along the way and hopefully inspire you to make your own geo web app.
Lonboard transforms geospatial analysis by eliminating the need for costly tiling and database preprocessing. This WebGL-based visualisation library delivers superior performance in Jupyter Notebooks, reducing costs while enabling real-time interaction with large vector datasets. Open source demonstration with reproducible examples from Urban Intelligence's climate modelling work.
ROCS is building Romania’s Earth Observation infrastructure using FOSS4G tools like STAC, COG, Zarr, MinIO and Kubernetes. The platform enables scalable, cloud-native data access, processing and analytics. Real-world use cases include crop monitoring, forest compliance, EO education, all developed in an open and reusable manner.
Since its initial release, QField’s collaborative cloud project management QFieldCloud has seen a steady capabilities growth. This talk aims at introducing some of the more advanced functionalities introduced in the last year or so to new and preexisting users.
pycsw project status presentation. Come and find out the latest news on the project as well as future plans, and how to get involved!
This is the time where you can have a 30min break to recharge with Tea, Coffee, Juice, Water and Food
Combining geospatial and remote sensing data to create accurate representations of national wetlands from diverse datasets raises technical and real-world challenges.
This talk covers how we minimize negative impacts of technical decisions while maximizing positive outcomes, and how we combine multiple datasets to support national wetlands mapping and monitoring.
fAIr is an open AI-assisted mapping platform developed by the Humanitarian OpenStreetMap Team (HOT). In this talk we will go through current progress and state of the art of usage of AI in humanitarian mapping. We will share our experience and roadmap of fAIr .
GeoArrow is a binary data format for geospatial data. It is designed for efficient data exchange, so is suitable for such usages as WebGIS. This talk will give the overview and the current status, including the limitation, of FOSS4G ecosystem around it, including DuckDB, Deck.gl, and MapLibre.
We present an AI-based conversational Digital Twin service leveraging open-source technologies such as CesiumJS and Deck.gl. This service enables 3D map control and geospatial information exploration through voice or text, supporting complex queries and real-time 3D visualization to deliver an intuitive user experience.
Explore how QField empowers people to map and understand the world—supporting daily tasks, global challenges, and the UN SDGs through open-source, intuitive, and collaborative mobile geospatial tools.
pygeoapi project status presentation. Come and find out the latest news on the project as well as future plans, and how to get involved!
We present an open-source workflow integrating QGIS, map2loop, and LoopStructural to automate geological map deconstruction into 3D models. This approach streamlines extracting contacts, faults, and stratigraphy from legacy maps, reducing manual effort and enhancing reproducibility. Results show rapid, scalable model generation, improving geological understanding in data-sparse regions.
A browser-based digital twin of individual trees is possible—even at scale. Using OGC 3D Tiles, we visualized real tree models with species and height data across vast forests in Korea.
Mapping can look easy for some people, but it could be really hard for others. What if communities could just simply and easily utilize the existing apps for mapping?
Discover OGC APIs and their implementation in GeoServer
This talk is about why National Land Survey of Finland made a strategic decision to use open solutions and collaborate actively with other agencies and OS communities. The talk will outline our experiences on open solutions and collaboration, as well as plans to strengthen the collaborative efforts going forward.
IIC have intentionally incorporated the benefits of free and open source software into recent projects for the benefit of the client and regional development. These have included training and SDI resolves for the Pacific, a QGIS charting plugin and a free Electronic Charting System.
Earth Search is Element 84’s open, cloud-native STAC API for public Earth observation data. This talk covers pipeline updates, metadata fixes, and open-source plans—making geospatial data easier to find and use.
ArkEdge Space Inc. has developed a Free and Open platform to democratize satellite-derived geospatial data. Leveraging FOSS4G technologies and rapid iterative development, we've quickly deployed forestry, agriculture, environmental, and water management apps globally, actively sharing source code to enable easy satellite-data access for everyone, including non-experts.
Open Software and Open Standards are complementary pieces of the geospatial ecosystem. In 2022, OSGeo and OGC signed a new Memorandum of Understanding (MoU) that aims to benefit the mission and goals of both organizations. This presentation will provide an update on collaboration, reference implementations, code sprints, and future plans.
OpenSearch is an open source 'observability platform' and a growing part of any modern DevOps stack and cloud infrastructure. Though it may seem a world away from anything to do with geospatial, I will show some of the geospatial capabilities of the platform.
Join us for the latest from the GeoNetwork community
Learn how OPENGIS.ch built a sustainable business on QGIS and QField—where open source, community, and entrepreneurship come together to create real, lasting impact.
This is the time where you can have a 60min break to recharge with Tea, Coffee, Juice, Water and Food as well as visit our exhibitors and sponsors.
This presentation introduces a trustless, browser-based system for Indigenous geospatial data sovereignty. It combines geomasking, encryption, and blockchain to enable secure, third-party-free data sharing. Developed for Māori-managed Biodiversity Areas in Aotearoa New Zealand, the tool ensures privacy and control over sensitive spatial data in cloud environments.
We present our research on a system prototype that combines a digital twin-based web service using Cesiumjs and 3D Tiles with atmospheric diffusion models to predict the diffusion of chemicals in the atmosphere to support post-mortem assessments of chemical spills.
An introduction and overview of the capabilities provided by the Free and Open Source Software libCartoSym and related dependency libraries (libCQL2, libDE9IM...) implementing the candidate OGC Cartographic Symbology 2.0 Standard. http://cartosym.org/ https://github.com/ecere/libCartoSym
Learn how Abley’s mapping stack leverages Amazon Web Services (AWS) and the AWS Cloud Development Kit (CDK) to automate, standardize, and scale geospatial infrastructure. Discover how our reusable CDK library enables rapid, environment-driven deployment of high-performance mapping services that power the Abley SafeSystem and geospatial APIs.
STAC 101 covers the essentials of the SpatioTemporal Asset Catalog, with practical tips for users and data providers to publish, find, and use geospatial data effectively.
Did you know that GeoServer can both produce and consume vector tiles? Join to find out how.
Seoul experiences concentrated rainfall. Our team is trying to mitigate the flooding by using tiny radars. During the development phase, our software architecture relied heavily on FOSS4G. However, for the operational phase, we have removed our dependency on FOSS4G. We have found that this approach is more suitable.
Land Information New Zealand is transitioning from siloed, middleware-heavy systems to a cloud-native geospatial data lake, built on STAC, COG, COPC, PMTiles, and GeoParquet. We’ll share our insights on modernising our data publishing, web mapping, analytics, and open data publishing across a complex national enterprise.
MapSafe is a QGIS plugin that enables users to protect and share sensitive geospatial data with privacy controls like donut masking, encryption, and blockchain verification. It brings advanced geoprivacy functions into desktop GIS workflows, eliminating reliance on third parties and supporting compliance with data protection regulations.
Learn how to secure STAC APIs using OIDC, CQL filtering, and existing STAC extensions. We present stac-auth-proxy, a backend-agnostic FastAPI proxy for enforcing flexible auth policies, including integration with Open Policy Agent.
Open Data in Japan is growing, but daily operations—structuring, updating, and cross-team management—remain challenging. This talk introduces how Re:Earth CMS, an open-source, model-based and collaborative tool, offers a lightweight approach to making Open Data more usable and sustainable.
Reflections on the development and delivery of a free public national-scale basemap service, built using open standards, open data and FOSS tech.
Wow it has been a busy time for security vulnerabilities. FOSS4G software is getting caught up in the general push to regulate IT and impose “security” on the technology that powers society.
Community: "This is broken, and WE'RE going to fix it"
Lone Wolf: "This is broken, and I'M going to fix it (alone)"
A deep dive into the open-source based tech stack behind the Pacific Data Hub.
Improved communication of flood risk via advanced visualisation could lead to increased and wider understanding of flooding, and therefore improved planning decisions and reduced impacts. We demonstrate the representation of modelled flood scenarios within virtual reality, and an open-source Python package for ingesting flood model outputs into Unreal Engine.
Comprehensive update on deck.gl's latest developments from a core maintainer. Discover seamless MapLibre globe integration, powerful widget system, WebGPU and more. Learn how these advances position deck.gl as the leading open-source framework for high-performance web geospatial visualization.
This is the time where you can have a 30min break to recharge with Tea, Coffee, Juice, Water and Food
Open data has delivered access, but not connection. This talk explores the space between silos, the overlooked disconnect where open data must evolve to become infrastructure.
Open source communities have created transformative technologies, but many organisations still hesitate to adopt them fully. This presentation explores practical ways open source contributors can make their projects more approachable, sustainable, and strategically valuable to businesses and governments.
The Closing Ceremony of FOSS4G 2025 Auckland
OSGeo Global Annual General Meeting