Alfredo Lopez (@lfredolo) header
Alfredo Lopez (@lfredolo) profile picture

Alfredo Lopez

@lfredolo

VP, Engineering @Hearst, Drummer, Droid. Trying stuff until it works. Views are mine and always isomorphic. He/him.

 New York, NY
alfre.do
Joined April 2009
  • Tweets9.2K
  • Following294
  • Followers588
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Photo by Alfredo Lopez (@lfredolo)Photo by Alfredo Lopez (@lfredolo)Photo by Alfredo Lopez (@lfredolo)Photo by Alfredo Lopez (@lfredolo)Photo by Alfredo Lopez (@lfredolo)Photo by Alfredo Lopez (@lfredolo)Photo by Alfredo Lopez (@lfredolo)Photo by Alfredo Lopez (@lfredolo)Photo by Alfredo Lopez (@lfredolo)Photo by Alfredo Lopez (@lfredolo)
Take all the advice from frontier labs with a huge grain of salt. By design or not, their workflows assume you're ok spending a ton of tokens. Having a 24/7 always-on agent sounds great in practice. Look ma! I pushed a bajillion PRs today! Don't lose track of your outcomes.
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Don't assume bad intentions. It's like healthcare in the US. Doctors will prescribe what they think is objectively the best solution, without being biased by your specific situation.
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Input validation is hard… Little Bobby Tables it is!
Image from Alfredo Lopez (@lfredolo)
Image from Alfredo Lopez (@lfredolo)
harper 🤯 (@harper) profile pictureharper 🤯
@harperSep 8
Muse onboarding going great
Image from harper 🤯 (@harper)
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Together (2025)
peguy_tbn (@peguy_tbn) profile picturepeguy_tbn
@peguy_tbnJun 5
LAST DANCE 💔🤯
Image from peguy_tbn (@peguy_tbn)
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The Bun rewrite and TanStack inspired me to do what I've been waiting for, literally years, in Next/React. In Next, the lifecycle hooks of _document in App Router. i.e., let me hook up RSC + server rendering before flushing the initial chunk. 🙌 In React, unlock RSC context! 🙏
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To support the RSC context, all React needs to do is allow exporting getServerTreePath, and the rest can be done in userland. React already has `currentlyRenderingTask` internally. Can't fit the whole patch in a screenshot, but you get the gist.
Image from Alfredo Lopez (@lfredolo)
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I'm fully aware that there are probably edge cases for both of these, but it's so great that custom-ish features can be done now. Codex did both of these in a few hours. Can you imagine if things like this could have been supported near launch? Emotion just works. 🫳🎤
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I’d honestly pay a premium for a movie theater experience where people are required to put their phones in a faraday cage bag. I’m sure the Alamo Drafthouse figured out it’s easier/cheaper to have someone monitor, but one can hope @AMCTheatres 🙏
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Wait, so Turbopack has no Plugin API or plans to do so? For some reason, I thought babel plugins was the dealbreaker from early on, but no compilation hooks at all? Huge bummer.
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Finally caught up on Remix 3, and it's incredible. The holy trinity of Events, Signals, and Frames as primitives are *chef-kiss* abstractions. It's pretty rough, but VERY promising. Their biggest challenge IMO is people's preconceived ideas from Remix's/React-Router's past.
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Mountainhead (2025)
Evan (@StockMKTNewz) profile pictureEvan
@StockMKTNewz29 Sep 2025
OPENAI IS PREPARING TO LAUNCH A SOCIAL APP FOR AI-GENERATED VIDEOS - Wired
Image from Evan (@StockMKTNewz)
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I had the opportunity to share some insights from my experience in scaling AI workflows and usage across the org @Hearst with some practical advice for engineering leaders. Thanks to @ladyleet @robocell for the invite!
Tracy Lee | ladyleet (@ladyleet) profile pictureTracy Lee | ladyleet
@ladyleet27 Aug 2025
Really enjoyed this conversation with @robocell & @lfredolo! Alfredo’s point about how #LLMs are reshaping velocity by getting teams to version zero faster is spot on. Great watch for engineering leaders thinking about how AI adoption works in their org 🔗⬇️
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There are a few things that I hate more than a PR that is ready to be merged (whatever that entails), that is not merged, and live in production. Every second that passes is an infrastructure failure.
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Generators in JS are so underrated; it's a shame the syntax is so gross.
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Nathan is the Andy Kaufman of my generation and I’m here for it.
Kate Hyde (@KateHydeNY) profile pictureKate Hyde
@KateHydeNY29 May 2025
Anyone who's looking for the whole CNN interview with the 'Miracle over the Mojave' pilot, Nathan Fielder, here you go.
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My filter bubble got pierced! nitter.gq/tobi/status/1624100370…
Remix 💿 (@remix_run) profile pictureRemix 💿
@remix_run28 May 2025
Wake up, Remix! remix.run/blog/wake-up-remix
Wake up, Remix!

Wake up, Remix!

It's time to go wake up Remix! Here's what we're building and what it means for React Router.

remix.run
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Most people misunderstand why successful projects/companies are successful, largely attributing it to one thing. Engineers gravitate towards *the* crucial tech decision when, in reality, success is everything else that changed because of it, or sometimes tech is the reaction.
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Keep this in mind when people say "A" is bad or when "we're migrating from A to B." in tech. You're often not privy to the behind-the-scenes of their company/team/etc, which made that decision work for them. Everyone has problems. Are their problems the ones you want/can have?
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Tried @github copilot review, and found out that once added, you can't remove it from your PR... So, every commit adds a new comment, including the same things. Please help
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