Uniform Data Model and 'Zarr' Interchange for Single-Cell Omics R package lstar version 0.2.2 A lightweight interchange layer for single-cell and spatial omics data, built on the L-star model of labelled axes and typed fields over them, serialized to the 'Zarr' format. Provides bidirectional converters ("profiles") for 'Seurat', 'SingleCellExperiment', 'Conos', and 'pagoda2' objects, including collections of heterogeneous samples, via a shared C++ core ('libstar') so the same store is readable from R, 'Python', and C++. Software Imports: Matrix, methods, stats, utils LinkingTo: cpp11 Suggests: SeuratObject, Seurat, SingleCellExperiment, SummarizedExperiment, S4Vectors, GenomicRanges, igraph, conos, pagoda2, HDF5Array, testthat (>= 3.0.0), knitr, rmarkdown Peter Kharchenko <pk.restricted@gmail.com> Comprehensive R Archive Network (CRAN) Peter Kharchenko [aut, cre] MIT + file LICENSE (https://CRAN.R-project.org/package=lstar/LICENSE) 2026-08-04 application/tgz https://CRAN.R-project.org/package=lstar doi:10.32614/CRAN.package.lstar