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Emulating RISC-V workers when the hardware goes away

Scaleway provide the RISC-V workers for OCaml CI, and they have been down for about a week with no real evidence that they’ll be back anytime soon. I can’t provision any new ones as they are “temporarily out of stock”.

03 Jun 2026

Marc Elvers

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Building a STAC server to avoid scanning 3.8 million tiles

The GeoTessera project produces 128-channel geospatial embeddings from Sentinel satellite imagery. The dataset is tiled at 0.1-degree resolution across the globe, covering 9 years and comprising roughly 3.8 million tiles, each containing embeddings and scale-factor files.

17 Apr 2026

Marc Elvers

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.plan-26-14: Tracking AI screen time and escaping to pen and paper

On cognitive DDoS and AI screen time for code, a proposal for voluntary disclosure in OCaml, iOS misery, releasing GeoTessera 0.8 and spatial indexing and the FP Launchpad launch at IIT Madras.

05 Apr 2026

Anil Madhavapeddy's Blog

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From Scaleway to Cambridge

Over the past few days, I migrated several OCaml CI services from Scaleway to Cambridge, consolidating them onto fewer machines with fewer services.

01 Apr 2026

Marc Elvers

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