Fernando Abolafio (@oxfernando) header
Fernando Abolafio (@oxfernando) profile picture

SpaceXAI Ambassador and Engineer @Trackman

Denmark / Copenhagen
Joined September 2017
Photo by Fernando Abolafio (@oxfernando)Photo by Fernando Abolafio (@oxfernando)Photo by Fernando Abolafio (@oxfernando)Photo by Fernando Abolafio (@oxfernando)Photo by Fernando Abolafio (@oxfernando)Photo by Fernando Abolafio (@oxfernando)Photo by Fernando Abolafio (@oxfernando)Photo by Fernando Abolafio (@oxfernando)Photo by Fernando Abolafio (@oxfernando)Photo by Fernando Abolafio (@oxfernando)
wow
Built a physical simulation of a record player with WebGL2 and Web Audio. It's *shockingly* accurate: vinyl-gl.vercel.app. Instead of playing a song, it works by converting it into the physical shape of a groove. Then a simulated stylus rides those walls 384,000 times a second, and you hear the voltage that motion would induce in a cartridge. So the crackle, the pops, the wow/flutter, the dull inner grooves are natural byproducts of the simulation. You can also "DJ" the record. (The converted songs are in the public domain or CC-licensed. Code is linked for you to remix and re-deploy.)
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Fernando Abolafio retweeted
You can now build live apps in Cursor and share them with a link. Agents have made it easier to write code, but most apps never make it off localhost. Describe the tool you want - Cursor will build it, set up a database, run deterministic and agentic security checks, and deploy.
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Fernando Abolafio retweeted
Lovely explanation of statecharts.
What is a "statechart"? State machines, but better. Another hand-written 2-minute read ⬇️
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We need more of it
we did invent it and it's called OIDC federation vercel and github actions do it: - each deploy gets a short-lived signed token - AWS/npm/other services verify it via trust policy - you get temporary creds no keys to paste the problem is not enough APIs and services accept it
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Ouch
Replying to @DrewOgryzek
I'm not interested in this post
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Fernando Abolafio retweeted
.@bot is such a polished product. it's intuitive, just works, and always surprises me in what it's capable of. kudos @poteto and team
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Loving adding my @bot to Slack Wished there was a native way to do that. But this works: - create a slack app (ask a bot to do that) that sends message to a webhook - set a routine in your bot which is triggered by the webhook - name the slack app after your bot and point the slack mentions over to the routine webhook -> magic 🪄
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Fernando Abolafio retweeted
Grok Bot now has its own email. Bot can use it to sign up for services, contact businesses for you, or schedule time with someone.
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We tried to make LLMs humans and we wound up with humans becoming LLMs
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Fernando Abolafio retweeted
New alchemy is on Effect 4.0 stable and has too many awesome changes to fit into a single tweet. My favorite this time round is that @neondatabase is no longer just a database company. It might be time to update their twitter handle 😅
[email protected] brings a ton of new stuff, including broad GCP coverage, Neon becomes more than a Database, pluggable secret providers, Prisma ORM, better scheduling primitives for Durable Objects and much more. alchemy.run/blog/2026-09-29-…
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to do this you just gotta: npm i -g littlesystem it will install the littlesystem cli and start the canvas + a skill teaching your agent on how to use it. you can then just ask it to draft a new/existing system using the cli
I love that now i can prototype systems and UI altogether with a real execution engine
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I love that now i can prototype systems and UI altogether with a real execution engine
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intense month at the kitchen
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Fernando Abolafio retweeted
Cool eval. Simply ask an LLM “Land or Water?” and give it a latitude and longitude coordinate as text. Ask 16,200 times, plot as image. The models know. From compressing the internet.
Replying to @celestepoasts
results for all claudes
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I've been using the pre release for a while and I can testify that this is great 👌
Effect v4 is here. One ecosystem. Zero dependencies. The next chapter of Effect and the foundation for building reliable software and AI agents in TypeScript.
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Nice read
Today I'm parting ways with Fly.io. It's been a privilege. I'm off to tilt at a big old windmill with Kurt, again. sockpuppet.org/blog/2026/09/…
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How will new generations know what’s real in history vs AI?
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Fernando Abolafio retweeted
Replying to @ThePrimeagen
I've been reflecting on this. I'm generally a very optimistic person, but lately I've been feeling a strange sense of sadness that coding has been "solved". I can, and have, made many caveats to "solved"... but I also know that in five years none of them will matter. It will be solved. Building things is still fun, but a different kind of fun. It doesn't activate the same parts of my brain as trad coding did. I think it's okay to mourn the thing we loved doing being different now. Software was the first job to go through the five AI stages of grief, which means we're also some of the first to internalize that this will happen to many other jobs. It was the best of times, it was the worst of times.
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