Jeremy Ettlinger

Calls, puts & mise en place

Appel & Mise

Vol. ITuesday, October 6, 2026 · 52° & clear on the UWSThe daily, for Jeremy Ettlinger
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The lede

Nuxt 4.6

Daniel Roe, Nuxt blog · made the Sunday

Four hundred and twenty commits, and the headline is subtraction: a new `nuxt/server` import surface means your handlers are typed against a portable RequestEvent rather than against whichever h3 and Nitro majors Nuxt happens to depend on, so the same file runs under Nitro v2, Nitro v3 or the new experimental pure-Vite server. Typed `$fetch` has been rebuilt on fetchdts, which is the fix for anyone who has watched TS2589 appear somewhere past their three-hundredth route — resolution now scales with call sites, not route count, and the 1,000-route benchmark goes from 12.8 million instantiations and a 7.4-second typecheck to 51,558 and a fifth of a second, with peak memory falling from 946MB to 140MB. There are also sealed-cookie sessions behind a single derived `appSecret`, so a small app gets auth state with no store to provision. The detail worth sitting with is in the CLI: a lock file in `.nuxt/` lets a second `nuxt dev` — Roe's example is one started by an agent — take over from or defer to the one you started, there are `nuxt curl` and `nuxt task` commands for talking to the running server, and the new error overlay has a copy button that formats the stack trace as a prompt. The framework has started designing for the thing sitting next to you in the terminal.

AI & Agents

Reflection AI

Introducing Beam: Reflection's 501B open-weight model

A sparse mixture-of-experts model — 501B total parameters, 23B active — pitched squarely at coding and agentic work, with the weights, technical report and model card promised later this month rather than today, which is the caveat to hold onto. The number that makes this worth reading is the reinforcement learning: 10,500 GB300s for four weeks, over 100 million rollouts, roughly 1.3 billion sandboxes and a million curated environments, with scores still climbing when they stopped. Two findings travel beyond the leaderboard. They sustained stable asynchronous training while learning from rollouts generated a full day and 107 weight versions behind the current policy, which is the engineering problem anyone scaling RL actually hits. And training on code, terminal and reasoning tasks produced unprompted gains in browsing — the model taught itself to query other LLMs and call OCR APIs with no browsing tasks in the mixture at all.

Bill Doerrfeld, LeadDev

Meta turned engineers' judgment into agent skills

Meta's Capacity Efficiency Program cut performance-regression diagnosis from about ten hours to roughly thirty minutes and claims hundreds of megawatts recovered, and the architectural choice underneath it is the transferable part: stable `tools` kept separate from evolving `skills`, where a skill encodes a specific senior engineer's reasoning about a specific class of problem rather than a general-purpose assistant. Humans still approve anything touching production. For anyone who has been writing skill files by hand and wondering whether the abstraction holds at scale, this is the closest thing to a field report.

Engineering & Leadership

Emma Bostian, LeadDev

Faster code isn't faster delivery

A year ago the question was how AI could help; now it is why nothing shipped faster, and Bostian's answer is that the constraint simply moved downstream — code is cheap to produce and review is not, so the reviewers absorbed the whole gain. The corollaries are uncomfortable for anyone running a mandate: more code is not more value, the author still owns quality no matter what generated the diff, and if your metrics stop at output rather than measuring review latency and the full delivery path, you will not be able to see where your speed went.

Web & Product Craft

David Bushell

Friendship ended with Deno, now Node is my best friend

A static site generator ported off Deno onto Node v26, and the surprise is how little had to change — the filesystem calls and one `Deno.serve`, swapped for Hono's Node adapter — for a 15% faster build on a codebase still written in idiomatic Deno. The genuinely stealable part is his supply-chain hygiene: pnpm with `minimumReleaseAge: 1440` and `trustPolicy: no-downgrade`, so your lockfile simply declines to see a package version less than a day old and lets someone else find the next Shai-Hulud first. He tried a month and dependency resolution fell over; a day is the setting that actually works.

Conor McCarthy, DebugBear

Example.com just launched the biggest redesign in decades

The most-referenced placeholder on the internet now cycles through six languages, each character fading in on its own `transition-delay`, and IANA's statement on why is a small lesson in knowing your traffic: the content moved into a separate JavaScript file precisely because almost all visitors are automated and automated visitors do not fetch the JS, so the bandwidth bill goes down while the page gets more useful to the humans. There is also a quietly firm note that this is a courtesy, not an endpoint, and that if you are using it for uptime monitoring you should stop. The Wayback archaeology back to Apache 1.3.22 on Red Hat is the dessert.

New York & the Table

Tierney Plumb, Eater NY · made the Sunday

At long last, Daniel Boulud is back to impress Lincoln Center diners

Bar Boulud, Boulud Sud and Épicerie Boulud all closed; on Thursday they come back as one 10,000-square-foot room at 1900 Broadway with the greatest hits of each on a single menu — seafood towers, lobster soufflé, boudin blanc, the DB Burger — plus the restored pre- and post-theater service, which is the part that matters if your evening is scheduled around a curtain. Resy is already booked deep into October, so the realistic entry points are the morning coffee-and-croissant counter and the speakeasy upstairs that runs late.

Gus Saltonstall, West Side Rag

Cyclist killed in Central Park after off-leash dog runs onto roadway

A 71-year-old man, helmeted, riding East Drive near 84th at 8:15 Monday morning, hit a golden retriever that came onto the roadway during the park's 6-to-9am off-leash window — dogs are permitted off-leash then, but never on the drives. The detail that should stop anyone who rides or walks that loop: Richie O'Brien was killed by a bicycle at virtually the same spot on September 23, walking to work. Two deaths in two weeks on one stretch of road is a design problem, not a coincidence.

Diversions

Inger Sigrun Bredkjær Brodey, Literary Hub

What would Mr. Darcy earn today? And other Jane Austen-related money matters

An excerpt that treats Austen as a balance sheet and gets somewhere real: men's fortunes are quoted as annual income because their capital was illiquid and sitting in land, women's as a lump sum because theirs was invested in government paper — Austen called the naval bonds 'the Navy fives' after their expected return. Darcy's £10,000 a year lands somewhere around $1.5 million at a 150x conversion, though Brodey is careful that the translation barely holds when labor was cheap and transport was dear. The closing figure is the one that lingers: Austen earned roughly £700 from her novels across her whole life, put it into naval bonds, and cleared about £30 a year she could call her own.

Loose Change

Donald S. Burke, Nautilus

How an accidental virus release triggered 1977's 'Russian flu'

In February 1976 a private collapsed on a hike at Fort Dix and his autopsy came back positive for swine H1N1; by October the United States was mass-immunizing against a pandemic that had already fizzled out on the base. The pandemic that did arrive, a year later, was the wrong one — and genuinely strange: it killed at a third the usual rate, it spared anyone over 26, and it refused to displace the H3N2 already in circulation. Peter Palese worked out why by chopping the genome with RNA-cutting enzymes and spreading the fragments by size and charge into a fingerprint of spots, which matched a human H1N1 strain that had gone extinct in the early 1950s. Older people were immune because they had already met it. A 2010 molecular clock put its re-emergence near Tientsin in spring 1976, months after Fort Dix — and Palese later wrote that it is now thought to have come from live-virus vaccine trials on several thousand military recruits. The global scramble to prepare for a pandemic appears to have thawed the one that came.

The Back Page

Ed Aarons, The Guardian

Schooled for success: how English lessons power Midtjylland's talent factory

More than €200m in sales since 2018 and their most profitable window yet — €62m for Franculino Djú and Darío Osorio inside 48 hours of deadline day — and technical director Kristian Kjær puts it down to English lessons three times a week, mandatory, because a player who cannot follow the coach within six months is a dead asset in a squad of 17 nationalities. The rest is the same unglamorous diligence: an academy in Nigeria running since 2004, and a nutritionist who worked out why Osorio was flat every morning (white bread for dinner). Kjær's own verdict on the windfall is the line to keep: it's not just pure luck.

Brady Klopfer, Golden State of Mind

Steph Curry reminds us that preseason results don't matter

Golden State opened in Honolulu with a 104-101 loss to the Clippers, down twelve at the break before Curry, Green and Horford were pulled, and Curry's response is the correct amount of institutional memory: eighteen years in and he can recall exactly one preseason outcome, a Lindy Waters buzzer-beater. Klopfer then does the honest thing and shows the record cuts both ways — 6-2 and 6-1 and 5-0 before three titles, but also 3-4 before the 73-win season. Basketball is back; the scoreboard isn't yet.

Around town

Wed Oct 7 · 2:30pm

CoClaude & CoWork

Betaworks, 29 Little W 12th St, Meatpacking

Two hours of coworking with other people pointing coding agents at their own projects, with a show-and-tell at the end. Free, small, bring a laptop. The pitch is accountability rather than content — which is the honest version of what most people actually need to get a side project past the first weekend.

professional

Wed Oct 7 · 8:00am

What'll It Take To Deliver Livable Streets To More Of NYC's Neighborhoods?

150W17TH, 150 W 17th St, Chelsea

A morning with DOT, a council member, Transportation Alternatives and Open Plans on why street redesign reaches some neighborhoods and not others — timely in a week when Central Park's East Drive has taken two lives in two weeks. The room is full, but the waitlist is open and there is a livestream.

casual

Wed Oct 7 · 10:30pm, Thu Oct 8 · 10:00pm, Tue Oct 13 · 4:30pm

Ghost in the Shell: 30th Anniversary Remaster

Metrograph, 7 Ludlow St, Lower East Side

Oshii's 1995 film in a 4K restoration, part of Metrograph's Cyberpunk Canon series, 83 minutes of hand-drawn cells cut with early CG. Its antagonist introduces itself as a life form born in a sea of information, which in 1995 was a premise and is now closer to a Tuesday.

casual

Wed Oct 14 · 5:00pm

AI/ML Lecture & Mixer: From Chain of Thought to Agent Swarms

Amazon JFK27, 12 W 39th St, Midtown

A monthly research colloquium, deliberately capped, where Zayne Sprague traces inference-time compute from chain-of-thought through to parallel agent swarms — including his own finding that chain-of-thought's gains concentrate in math and symbolic work, where answers can be checked automatically. Free, and the whole format is built for pushing back rather than nodding along.

professional

Quote of the day

“Every dotfile represents a mistake.”

— David Bushell, itemizing the cost of leaving Deno

On this day

October 6, 1927 — The Jazz Singer premieres at Warners' Theatre on Broadway at 52nd, and the silent era starts running out of road. Eighty-three years later to the day, in 2010, Instagram ships its first iOS app.

The puzzle corner

The Mini · Wordle · Connections

The framework shipped a lock file for the agent that starts your dev server, Meta bottled a senior engineer's judgment as a skill file, and LeadDev counted the receipts and found the time went to the reviewers.