TESSERA on the ESA homepage and at CVPR, GeoTessera 0.9 stabilising onto S3/Zarr, io-uring in OCaml, carbon credits in New Scientist and WSJ, and musings on internet malware again.

Publishing the OxCaml Labs year-one review, POSSE and AI content disclosure for the web, adopting the geo-embeddings Zarr convention for TESSERA, action PROPL at PLDI, the death of the grant application, and NASA's new swathe lidar mission.

Community feedback reshaped our Zarr store layout — years became a dimension, shards got bigger, and we retired the TESSERA-specific convention in favour of a shared geo-embeddings standard that also covers other models.

How we restructured TESSERA's geospatial embeddings from millions of individual numpy files into sharded Zarr v3 stores for efficient HTTP streaming, enabling everything from single-pixel mobile lookups to regional-scale analysis with just a couple of range requests.

TESSERA paper accepted at CVPR 2026, went to the AI Impact Summit, OCaml Zarr hacking, Shriram's talk on human factors of formal methods, and discussions on teaching OxCaml to agents.