Version 6

Simon Willison released inaturalist-clumper 0.1 on May 15, 2026 — a Python tool for grouping iNaturalist nature sightings into clusters and publishing them to a blog [1][2]. The tool has a two-repository structure: inaturalist-clumper is the installable package, and a separate GitHub repository named inaturalist-clumps stores grouped observation data in a clumps.json file [3][4]. Willison used the tool live at PyCon US 2026 in Long Beach [6], logging bird sightings before and after the conference [7][10], and published a post-conference LLM summary on May 19 that positioned LLMs as his primary conference theme [9]. No new technical activity, forks, or community response has surfaced since May 18.

The project illustrates Willison's practice-first release style — ship a small personal tool only after production use has shaped the design, then demonstrate it live at a major developer conference. The absence of follow-on activity (no forks, no new releases, no downstream coverage) suggests the tool is functioning as intended personal infrastructure rather than a community project seeking adoption.

Simon Willison released inaturalist-clumper 0.1 on May 15, 2026, a lightweight Python tool for grouping iNaturalist nature sightings into clusters and publishing them to a blog [1][2]. The project has a two-repository structure: inaturalist-clumper is the installable tool on PyPI, while a separate GitHub repository named inaturalist-clumps stores the grouped observation data in a clumps.json file [3][4]. That data file suggests the tool's output is structured JSON describing clusters of sightings rather than raw observation dumps — a design choice that simplifies templating for blog posts. A tool page on simonwillison.net dated May 1, 2026, titled 'Tool: iNaturalist Sightings' [5] indicates the project was publicly documented at least two weeks before the formal 0.1 release, consistent with Willison's account that the tool had been running in production for several weeks before he settled on a version number [1].

The release coincided with PyCon US 2026 in Long Beach, California [6], where Willison used the tool in practice. On the morning before the conference opened, he went on a bird walk and logged a Western Gull — spotted near a Starbucks — and a Rock Pigeon, publishing both to his blog via the tool [7]. A New Stack article covering the conference places Willison giving a talk titled 'Hacking LLMs for Fun and Profit,' framing his conference presence as primarily LLM-focused [8], a framing reinforced by a post-conference blog post on May 19 titled 'The last six months in LLMs in five minutes' [9]. By May 18, as PyCon concluded, Willison walked near the Los Angeles River and spotted a Brown Pelican, Glaucous-winged Gull, Snowy Egret, and Canada Goose before departing [10]. The three posts — tool release, pre-conference sighting, post-conference sighting — form a coherent end-to-end demonstration of the workflow, with the iNaturalist activity running as personal practice alongside his public LLM work.

External amplification reached multiple audiences. Tech curator B Devanarayanan surfaced the launch in a digest alongside the Cerebras $60B IPO and OpenAI's Codex mobile announcement [11], and a Chinese-language blog, 雅俗共赏, covered the release for a non-English developer readership [12]. Neither has followed up since May 16. Searches for PyPI download statistics yielded only generic background articles about how to interpret PyPI stats [13][14][15] — no specific data on inaturalist-clumper's adoption footprint is publicly available. No forks, contributors, or new technical coverage have been observed since May 18, and the story has produced no substantive new signal since the initial amplification wave.