Meetings
BioHackSWAT4HCLS 2025
BioHackathon Europe 2025
4th BioHackathon Germany
DBCLS BioHackathon 2025
ELIXIR INTOXICOM
Recent preprints
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Maintaining and refining the Tidyomics ecosystem: enhancing core packages and interoperability for EuroBioc2026
The Tidyomics ecosystem facilitates the manipulation of computational omics data structures by bringing the intuitive and consistent syntax of the tidy paradigm to R. During the EuroBioc2026 Tidyomics Hackathon, five bioinformatics researchers collaborated to strengthen this ecosystem across four areas. First, we introduce tidyAnnData, a new package that expands interoperability between the tidyverse and AnnData objects. Second, we updated and harmonized the accessibility of information across the core packages that form the current Tidyomics backbone. Third, we improved the stability of core packages by resolving critical bugs through targeted pull requests and implementing functional enhancements to the DFplyr and tidybulk packages. Fourth, we enhanced the documentation by producing a comprehensive and stable vignette for tidySingleCellExperiment covering typical single-cell analysis workflows. Together, these contributions lower the barrier to entry for new users, promote reproducibility, and support the continued transition from disparate scripts toward robust, unified omics workflows driven by community development. -
BiocExecute: Make package functions or workflows executable from the command line
Bioconductor (Huber et al., 2015) is a collection of more than 2,400 open-source software packages, together accounting for about a million downloads per year (Bioconductor, 2026). The packages are thoroughly maintained and documented, and their quality is enforced through BiocCheck. Their reach, however, largely stops at the R console. The R and Bioconductor paradigm of interactivity through a responsive, informative REPL has served academic users well for a long time. But computational biology has grown more interdisciplinary, and increasingly runs on high-performance and high-throughput compute, large-scale experimentation, and the cloud. In these settings analyses are assembled from command-line tools and run under workflow managers, where an interactive R session does not fit. For Bioconductor and the work built on it to stay relevant, its tooling must be portable and scriptable as well as interactive. Some of this ground is already covered: R2G2 integrates R with Galaxy, and Rapp (r-lib,2024) lets an R script run as if it were a command-line program. What is missing is a path from a Bioconductor package to such tools that follows the project’s own packaging conventions. BiocExecute fills that gap. It is a package that wraps Rapp so that the functions and workflows inside any Bioconductor package can be called from the command line, with these command-line entry points declared and bundled as part of the package itself. Both users and developers gain from this. Users can run Bioconductor tools outside of Rscripts, combine them as modules with other command-line tools, and reuse them in workflows under any workflow manager; developers reach a wider range of users. More broadly, making Bioconductor packages executable improves their FAIRness (Barker et al., 2022; Wilkinson et al., 2016) and gives Bioconductor software visibility among a larger community of bioinformaticians. Longer term, the goal is to lay the groundwork for programmatic generation of command-line tooling from within Bioconductor packages, so that this tooling can be slotted into modern workflow management systems or interactive platforms such as Galaxy (Goecks et al., 2010). -
Rendering SSSOM ontology mappings as RDF named graphs and RDF 1.2 triple terms
SSSOM shares ontology mappings as a TSV+YAML file usually consumed as a dataframe. At the GOBLIN hackathon we explored rendering it as RDF with the individual mapping as first-class object, via two complementary serializations: named graphs (TriG, modelling sssom:MappingSet) and RDF 1.2 triple terms (Turtle 1.2, modelling sssom:Mapping). We compare the design trade-offs and show they compose rather than compete. As proof of concept we rendered all EBI OLS extracts (271 sets, ~6.2M mappings) into both forms and built an in-browser Oxigraph + Comunica demo. Wikidata extraction is ongoing. An early proposal to start discussion. -
Eurobioc2026 BiocContainer Report
Containers enhance reproducibility and provide an easy and convenient way to share the setups used to run an analysis. As part of the EuroBioc 2026 Hackathon, this working group got together with the aim of offering user-friendly and straightforward ways to create containers given the desired R packages, data and scripts, and importantly, coupled to the used Bioconductor release. This resulted in an R package called SimpleBiocContainer which offers a minimal set of functions to do this. -
Bioconductor Spatial Data and Image Analysis Hackathon
We report the outcomes of the Bioconductor Spatial Data and Image Analysis Hackathon, held in Venice, Italy in April 2026. Twenty-seven researchers and software developers organized into four teams to advance R/Bioconductor capabilities for spatial omics and image analysis. Outputs include scalable raster–polygon workflows for whole-slide pathology, an R package for running spatial foundation models via reticulate/basilisk, a spatially stratified differential expression framework, and substantial enhancements to the R SpatialData infrastructure for interoperability with the Python spatialdata ecosystem. All software is openly available and under active development. -
2nd SpatialData Hackathon: Frameworks, Formats and Interoperability
This preprint outlines the results of the “2nd SpatialData Hackathon” organised by the scverse and Bioconductor teams. The event gathered experts to advance spatial omics through four hackathon tracks: (i) R interoperability, (ii) accessibility and performance of visualization tools, (iii) design modernization for the SpatialData framework, and (iv) file formats and transformations (NGFF).Key achievements include extending the SpatialData, Zarr and bioimaging frameworks to R/Bioconductor ecosystem, improving visualization with 2.5D/3D rendering and a chunked multiscale point representation, introducing cloud-based IO and prototypes for lazy file linking and bidirectional element-table relationships, and developing a language-agnostic conformance test suite for OME-NGFF coordinate transformations. The hackathon fostered collaboration, creating infrastructure prototypes and identifying interoperability challenges. Documented on GitHub, these efforts brought together 24 participants from the US and Europe, promoting a FAIR ecosystem of spatial omics and imaging tools. -
INTOXICOM Workshop Report: Systems Biology Models for Toxicology
This report summarizes the ELIXIR Toxicology Community workshop on Systems Biology Models for Toxicology, held on 11–12 September 2025 in Athens, Greece. The workshop took place under the INTOXICOM Implementation Study workshop series (Integrating the toxicology community into ELIXIR 2024) and aimed to strengthen connections between systems biologyand toxicology by bridging ELIXIR resources with systems toxicology modelling approaches usedfor chemical risk assessment. The workshop explored the role of qualitative and quantitative exposure–health outcome models, including (quantitative) Adverse Outcome Pathways ((q)-AOPs), AOP networks, and mechanistic toxicology models. Participants examined two usecases focused on neurotoxicity and endocrine disruption, discussing how ELIXIR tools, platforms,core data resources, and modelling environments can support them. The workshop concluded with a discussion on a roadmap for integrating ELIXIR systems biology infrastructures and tools into applied systems toxicology. This report documents the presentations, discussions, and practical results that contribute to Deliverables of INTOXICOM WP5.
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