Version 2

Simon Willison released inaturalist-clumper 0.1 on May 15, 2026, a personal tool for publishing iNaturalist nature sightings to a blog, after weeks of production use [1]. He deployed it live during PyCon US 2026 in Los Angeles, logging bird sightings before and after the conference [2][3]. The release drew brief external notice from at least one tech curator, who bundled it alongside larger news items like the Cerebras $60B IPO and OpenAI's Codex mobile launch [4].

The story is a compact illustration of tool-building driven by practice rather than speculation: Willison shipped only after real-world use had shaped the design, then demonstrated the workflow live at a major developer conference. The tool appearing in a tech digest alongside billion-dollar industry stories signals at least passing recognition outside Willison's existing audience.

Simon Willison released inaturalist-clumper 0.1 on May 15, 2026, a lightweight tool he built to bridge iNaturalist — the popular citizen-science nature observation platform — and a personal blog [1]. Rather than shipping at a speculative milestone, Willison had already been running the tool in production for several weeks, and it was that real-world use that drove design iterations before he settled on a formal release [1]. The announcement was characteristically terse: a brief statement of the tool's purpose and its production history, with no marketing gloss.

The release landed the same morning Willison went on a bird walk in Los Angeles ahead of PyCon US 2026 [2]. That walk yielded a Western Gull — spotted near a Starbucks — and a Rock Pigeon, both logged to iNaturalist and published to his blog [2]. The juxtaposition was unplanned but illustrative: the tool was already doing exactly what it was built to do, in the field, on release day.

By May 18, as PyCon wound down, Willison set out on a final morning walk near the Los Angeles River with a specific quarry in mind: a Brown Pelican [3]. He found one, along with a Glaucous-winged Gull, Snowy Egret, and Canada Goose, and logged the sightings before departing for home [3]. The three posts together — tool release, pre-conference sighting, post-conference sighting — form a coherent demonstration of the workflow inaturalist-clumper is designed to support, even if that demonstration was incidental rather than staged.

The release attracted at least some external attention: tech curator B Devanarayanan included the inaturalist-clumper launch in a digest of notable items from May 16, 2026, alongside the Cerebras $60B IPO filing and OpenAI's Codex mobile announcement [4]. The inclusion suggests the project registered as meaningful in a broader developer-news context, even if it occupies a very different scale from the items it was grouped with.