Casey Collins

41 posts

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Casey Collins

Casey Collins

@itisthecase

Director of Engineering at @HubSpot Here to talk about AI, tech, product, TV, cooking, running, and the @Celtics

Katılım Nisan 2026
311 Takip Edilen17 Takipçiler
Casey Collins
Casey Collins@itisthecase·
I'm a big fan of everything @appfactory has done with @RedwoodJS and I'm excited to try this out for my coding projects
Peter Pistorius@appfactory

machinen.dev - boot once, run everywhere. A MicroVM that runs on hardware you already own. Close your laptop and it hands off to another host. Works across macOS, Linux, and Raspberry Pi. (aarch64)

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Mitchell Hashimoto
Mitchell Hashimoto@mitchellh·
It isn't unexpected that the focus of the Bun Rust rewrite is on the anti-Zig side more than anything, since the internet loves to hate. What is unexpected and unfortunate is that leadership within Bun hasn't tried to steer the conversation away from that at all. There are so many positive and interesting takeaways from this and I'm not really seeing any of them pushed as the primary message. A positive thing that hasn't been talked about at all is how far Bun came thanks to Zig. And even if you dump it now, its meaningful for how good Zig was to even build a product to this point and impact by any metric. I would've loved to see anyone in leadership say this. On the interesting side is how fungible programming languages are nowadays. Programming languages used to be LOCK IN, and they're increasingly not so. You think the Bun rewrite in Rust is good for Rust? Bun has shown they can be in probably any language they want in roughly a week or two. Rust is expendable. Its useful until its not then it can be thrown out. That's interesting! There's been a lot of talk about memory safety and no doubt Rust provides more guarantees than Zig. But I'd love to see a better analysis of why Bun in particular suffered so much rather than take the language-blame path. How could engineering as a practice been more rigorous to prevent this? What were the largest sources of crashes other programs should watch out for? How does Rust prevent them? How could Zig theoretically prevent them? That's interesting. I know the official blog post hasn't come out yet from Bun. But they're smart enough to know that that PR would stir up controversy the moment it opened, or they should've been. And plenty in the company have been tweeting and writing about it. Its somewhat telling to me in various dimensions what they chose to talk about first. I tend to think I'm pretty good at corporate PR/comms (especially when it comes to developer audiences) and I think appealing to the negative is never the right long term strategy; it does work to get short term eyes though.
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Arun Sharma
Arun Sharma@arundsharma·
@mitchellh > Bun has shown they can be in probably any language they want in roughly a week or two My only problem is that people are doing it via matrix multiplication. If you must, please have Claude spit out a zig <-> rust transpiler, write tests for that and then transpile bun.
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Casey Collins
Casey Collins@itisthecase·
@GergelyOrosz @levie I've had a couple networking calls with CS students over the last couple month and pointed them in this direction. While the role sounds consulting-esque I think these roles will be a good way for people to get hands on experience as engineers
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Casey Collins
Casey Collins@itisthecase·
@dadiomov I think its more that people want low-fee, low-friction payments methods for agents. Credit card fees and other legacy banking restrictions seem like they would complicate that
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Dimitri Dadiomov
Dimitri Dadiomov@dadiomov·
I don't understand the premise that "agents must use stablecoins." Why can't an agent remember the 16 digits of a credit card? Sorry maybe I'm a payments n00b. Stablecoins have a lot of great use cases, but ecommerce shopping is pretty well optimized already for cards.
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Gergely Orosz
Gergely Orosz@GergelyOrosz·
Discord's "are you human" captcha went from "a human can solve it immediately" to "sit down and do some work for it." I can do it, but captchas were meant to be dead simple for humans, hard for bots. This is NOT dead simple for humans...
Gergely Orosz tweet media
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kitze
kitze@thekitze·
american households be like
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Gergely Orosz
Gergely Orosz@GergelyOrosz·
As I previously said: Anthropic is on a speedrun to burn developer trust. Nothing wrong with wanting to remove Claude Code from the Pro subs: but everything wrong by running shady growth tests without upfront comms, instead of being clear about it.
Jaime Geiger@jgeigerm

Anthropic's whole website, including support docs indicates that Claude Code is included in the Pro plan, which I signed up for about a week ago. Despite this it only gave me a 7-day free trial. Support is non-responsive. False advertising? @AnthropicAI

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Casey Collins
Casey Collins@itisthecase·
@mschoening nailed something on Lenny's pod: models aren't getting dramatically better at non-coding work. What's actually happening is software engineering is diffusing into every other role. Friends outside tech are asking me questions about how to use AI that show them starting to think about systematizing their work in a way I've never seen. youtu.be/mCO-D3pkviM?t=…
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Casey Collins
Casey Collins@itisthecase·
Someone should tell the Celtics about the existence of the two point shot
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Dillon Mulroy
Dillon Mulroy@dillon_mulroy·
artifacts dashboard coming soon™️
Dillon Mulroy tweet media
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Turner Novak 🍌🧢
Turner Novak 🍌🧢@TurnerNovak·
One of the most insane things I’ve ever come across: Up until World War II, the majority of renters in NYC all moved at the same time on May 1st at 9am. This is because (almost) every housing lease in NYC expired on the same day. This goes back to an old Dutch tradition where every contract had an end date of May 1st. This was carried over when Dutch settlers immigrated to the US. And in 1820, the state of New York actually passed a law mandating that any housing contract without a specified term ended on May 1st. Many housing leases were just oral / handshake agreements and not actually written down, so they all had this same end date. At the height of Moving Day in the early 1900’s, it was estimated that over a million people in NYC all changed their residences at the same time. For context, NYC’s population was 1.5m in 1890 and 7.4m in 1940. Every year on May 1st, tens of thousands of farmers, etc came into NYC with wagons to make money moving people and their things around all day. There’s a few quotes about this on the Wikipedia page. A good one from 1832: “On the 1st of May the city of New York has the appearance of sending off a population flying from the plague, or of a town which had surrendered on condition of carrying away all their goods and chattels. Rich furniture and ragged furniture, carts, wagons, and drays, ropes, canvas, and straw, packers, porters, and draymen, white, yellow, and black, occupy the streets from east to west, from north to south, on this day. Every one I spoke to on the subject complained of this custom as most annoying, but all assured me it was unavoidable, if you inhabit a rented house. More than one of my New York friends have built or bought houses solely to avoid this annual inconvenience” Moving Day finally ended during WW2 because they couldn’t get enough able-bodied men in town to help move people. They were all away at war. These labor shortages + a general housing shortage + rent control finally put an end to NYC’s Moving Day.
Turner Novak 🍌🧢 tweet media
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Casey Collins
Casey Collins@itisthecase·
I have never seen a ball bounce this high and still go in
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Casey Collins retweetledi
Brian Halligan
Brian Halligan@bhalligan·
HubSpot’s agent pricing Prospecting agent - $1 per qualified lead. Customer support agent - $.50 per resolved conversation. Both agents work well and now have aligned incentives. If using HubSpot, give them a go!
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Matt Slotnick
Matt Slotnick@matt_slotnick·
@thedealdirector “Very bearish for system of record players trying to push agentic workflows.” I see no correlation here? Mass adoption of agentic workflows by SOR would drive cloud spend in any event… they’re all big GCP customers
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The Deal Director
The Deal Director@thedealdirector·
The GCP overperformance is probably the most interesting turnaround in the last months keeping in mind the weakness of Gemini adoption vs Anthropic and OpenAI. Very bearish for system of record players trying to push agentic workflows.
Jamin Ball@jaminball

Cloud Giants Update: AWS (Amazon): $150B run rate growing 28% YoY (last Q grew 24%) Azure (Microsoft): ~$108B run rate (estimate) growing 39% YoY (last Q grew 38%) Google Cloud (includes GSuite): $80B run rate growing 63% YoY (last Q grew 48%, neither are cc)

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Casey Collins
Casey Collins@itisthecase·
@GergelyOrosz I think the reality is that they are in unprecedented hyper growth and that is starting to weigh them down
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Gergely Orosz
Gergely Orosz@GergelyOrosz·
The last ~month, Anthropic really behaves like it was bought by private equity: 1. Raises prices without offering anything meaningful in return (Opus 4.7 tokenization) 2. Poor customer support for paying customer (silent bans of a few 50+ seat corp accounts) 3. Shady growth hacks that go against the company's previously stated values on integrity (eg silent updates on the pricing page, removing Claude Code from $20/month packages)
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Nathan Baschez
Nathan Baschez@nbaschez·
Do you spend a lot of time reviewing markdown docs written by AI? Wish it were a better experience? Say hi if you wanna try a new (free, open source) thing
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