Marius Costache

Engineering manager in cybersecurity. Thoughts on agentic engineering, building teams, and helping engineers grow. Carp fishing & F1 outside work.

[DHH @dhh]

It's pencils down, people. Writing code by hand is no longer an economically viable skill for most programmers at most companies. But the future of making software has never been brighter. Don't you dare black pill this beautiful moment! https://t.co/qaCgfmkW0u

[Scott @scottstts]

My god this is such a good speech that every SWE needs to hear. You know what? Every person should hear it

Keep the happy memories, eyes on the reality, be excited about the future. That’s the best that anyone can do

[Thorsten Ball @thorstenball]

"Programming languages and frameworks are dead."

Yes, kind of.

What will matter in future is runtime behavior:

Performance characteristics, resource usage, failure modes, observability, debuggability, deployments, rollbacks.

And legibility of all that to agents.

[lauren @poteto]

here's how i shipped 2,500 PRs last month to production

this was originally supposed to be for Cursor Compile in London. i couldn't make it since i was livestreaming for Grok @Bot Galaxy so i'm making it available for free here on X! watch it on 2x speed, i talk slowly

[lauren @poteto]

I'm writing a guide to pstack! Here's part one. https://t.co/4yjdWKPieE

[Moon @MoonGotchi]

Jev is INSANE.

I built this in an evening and morning. A real-time trading bot ingesting onchain+offchain data to make rapid decisions about trades. Fully autonomous.

So far it has lost me $31,680.

[Martin Litwak @MartinLitwak]

Solo alguien sin conocimientos técnicos puede creer que un sensor inalámbrico metido dentro de una pelota —que es pateada durante horas con una tasa de muestreo pésima— es capaz de detectar un pelo en su superficie en milisegundos, pero mágicamente inmune a la onda de presión si alguien la falla por un milímetro… todo transmitido por el aire en tiempo real a cientos de metros.

Es un acelerómetro. Capta vibraciones y cambios de presión de todo lo que esté cerca, hasta un insecto. Después la @FIFAcom decide qué pico cuenta como “toque”.

Y si el microchip marcó el “toque de cabeza” del croata… ¿por qué en la gráfica no aparece después el impacto clarísimo contra el defensor portugués?

Esto no es tecnología. Es un robo descarado. Uno de los más escandalosos de la historia del fútbol.

Y eso que han habido varios…

#Mundial #CopaMundial #FIFA #WorldCup #Fútbol #VAR #TecnologíaFIFA

[Dan @CfcDan_01]

🚨Zlatan Ibrahimovic on VAR after Croatia’s last-minute equaliser vs Portugal was ruled out:*

This referees are doing everything possible for Ronaldo to win the world cup but they will say Messi is the FIFA boy , This ball was never an Offside because the ball didn't touch the Croatia player , This is pure daylight robbery.

"The referee and VAR have just erased what should have been one of the greatest moments of this World Cup.”

"Let’s be clear: if you’re going to cancel a goal in the 90th minute, the evidence has to be beyond doubt. I’ve watched the incident multiple times, from every angle, and I still don’t see anything conclusive enough to overturn it.”

"If you’re in that VAR room for minutes, pausing, zooming, drawing lines to a shoulder, a boot, a heel… it’s not clear and obvious. And if it’s not clear, the goal must stand. That’s the whole point of VAR.”

"The referee has allowed technology to become the main character. But fans don’t fill stadiums or stay up late to watch a screen. They come for football — for drama, for emotion, for moments you remember forever.”

"Croatia showed real fight. They dug in, they scored late, they thought they’d earned a dramatic equaliser to keep their dream alive. Then one decision ripped it away, and that decision will be argued about for years.”

"This is why confidence in VAR is collapsing. It’s no longer fixing obvious mistakes. It’s hunting millimeters that nobody in the stadium can see with their own eyes. That’s not what football is supposed to be.”

"I feel for those Croatian players more than anything. You celebrate, you believe your World Cup is back on, and then it’s gone in seconds. For me, the referee on the pitch and VAR in the booth both got it wrong.

[Marius Costache @tacheshun]

@adjorNfriends Croatia was robbed

[Raul Allegre @RaulAllegre]

No estaba a favor de Portugal o Croacia, pero hoy el VAR le ROBA un empate a Croacia. El penal marcado es debatible, pero se puede aceptar. El gol anulado por fuera de lugar fue una GRAN PIFIA. En la explicación el árbitro dice que el 20 de Croacia toca el balón. No lo toca. El Croata #15 está habilitado a la hora del pase. El balón toca accidentalmente al #13 de Portugal. #nofueoffisde

[Foundring 🇺🇸 @foundring1]

FIFA is currently scrubbing this video from the interwebs because it proves they just rigged the game. Watch it while you can!

[Marius Costache @tacheshun]

@thedukeofmadrid Where is the spike from the portuguese player?

[Tyler Tarabocchia @iamtylertnt]

REFS CLEARLY MADE THE WRONG CALL! #Soccer #fifa #fifaworldcup #croatia #portugal

[Anthropic @AnthropicAI]

The US government, citing national security authorities, has issued an export control directive to suspend all access to Fable 5 and Mythos 5 by any foreign national, whether inside or outside the United States, including foreign national Anthropic employees.

The net effect of this order is that we must abruptly disable Fable 5 and Mythos 5 for all our customers to ensure compliance.

Access to all other Claude models is not affected.

We apologize for this disruption to our customers. We believe this is a misunderstanding and are working to restore access as soon as possible.

Read our full statement: https://t.co/bwn0sximKZ

[Samay @Samaytwt]

Unpopular opinion: "AI makes everyone a developer" is true the same way "cameras makes everyone a photographer"

[maru hugo @dargaudad]

Bravo MarianCeausescu 👍👏👏😂

[Claude @claudeai]

Introducing Claude Design by Anthropic Labs: make prototypes, slides, and one-pagers by talking to Claude.

Powered by Claude Opus 4.7, our most capable vision model. Available in research preview on the Pro, Max, Team, and Enterprise plans, rolling out throughout the day.

[Google AI @GoogleAI]

We’re launching a brand new, full-stack vibe coding experience in @GoogleAIStudio, made possible by integrations with the @Antigravity coding agent and @Firebase backends.

This unlocks:

— Full-stack multiplayer experiences: Create complex, multiplayer apps with fully-featured UIs and backends directly within AI Studio

— Connection to real-world services: Build applications that connect to live data sources, databases, or payment processors and the Antigravity agent will securely store your API credentials for you

— A smarter agent that works even when you don't: By maintaining a deeper understanding of your project structure and chat history, the agent can execute multi-step code edits from simpler prompts. It also remembers where you left off and completes your tasks while you’re away, so you can seamlessly resume your builds from anywhere

— Configuration of database connections and authentication flows: Add Firebase integration to provision Cloud Firestore for databases and Firebase authentication for secure sign-in

This demo displays what can be built in the new vibe coding experience in AI Studio. Geoseeker is a full-stack application that manages real-time multiplayer states, compass-based logic, and an external API integration with @GoogleMaps 🕹️