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Reposted by Cosimo Matteini

Effect | TypeScript for the AI Era @effect-ts.bsky.social · 01/10/2026

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. Read the full announcement below: effect.website/blog/release...

Effect 4.0 stable release announcement on a dark background. Large white “4.0” above “Production-ready. Out now.” A timeline along the bottom progresses from 3.0 Stable to 4.0 RC to 4.0 Stable.

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Reposted by Cosimo Matteini

Socket @socket.dev · 01/04/2026

🧨 Axios only needed to be resolved somewhere in your dependency graph to affect you. Semver + transitive deps + runtime installs = hidden blast radius. If you only checked your project’s lockfile, you may still not know. socket.dev/blog/hidden-... #nodejs #javascript

socket.dev

The Hidden Blast Radius of the Axios Compromise - Socket

The Axios compromise shows how time-dependent dependency resolution makes exposure harder to detect and contain.

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Reposted by Cosimo Matteini

Effect | TypeScript for the AI Era @effect-ts.bsky.social · 18/02/2026

Today, we launched Effect v4 beta 🚀 Rewritten runtime. Smaller bundles. Unified package system. Performance: v4 is faster and lighter than v3 across the board. Rewritten runtime: lower memory overhead, faster execution, simpler internals. Full announcement: effect.website/blog/release...

github.com

GitHub - Effect-TS/effect-smol: Core libraries and experimental work for Effect v4

Core libraries and experimental work for Effect v4 - Effect-TS/effect-smol

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Reposted by Cosimo Matteini

doubleloop @doubleloop.io · 11/02/2026

Guido Martini entra come nuovo socio di doubleloop. Dopo anni come board advisor, è un’evoluzione naturale del percorso fatto insieme. Rafforziamo il board e la nostra direzione: costruire un’azienda di prodotto end-to-end, unendo strategia, design e sviluppo. Benvenuto a bordo, Guido 🚀

Matteo, Andrea, Guido e Massimo. I soci di doubleloop

Guido presenta la sessione "UX and UI principles for devs"

Guido in montagna con la felpa doubleloop

Guido conduce una sessione alla unconference SoCraTes Italia

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Reposted by Cosimo Matteini

doubleloop @doubleloop.io · 09/02/2026

Vi siete persi @cosimomatteini.com mentre esegue il kata "from Imperative to Functional Programming" con Effect? Nessun problema: ecco il talk completo: 🎥 Talk: www.youtube.com/watch?v=XvDY... 💻 Repo: github.com/devmatteini/... Un ottimo esempio di refactoring passo dopo passo.

youtube.com

Imperative to Functional Programming Kata

YouTube video by Ticino Software Craft

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Reposted by Cosimo Matteini

doubleloop @doubleloop.io · 28/03/2025

Last week, we attended #EffectDays: 3 days of 🧑‍💻 workshops, 🎙️talks, and 🤝 exchanges with a passionate community. We shared our 💻 effect-mongodb library (tinyurl.com/mubt33xv). Big thanks to @effect-ts.bsky.social, the speakers, and everyone we connected with! 🙏 #Community #ContinuousImprovement

github.com

GitHub - doubleloop-io/effect-mongodb: A MongoDB toolkit for Effect

A MongoDB toolkit for Effect. Contribute to doubleloop-io/effect-mongodb development by creating an account on GitHub.

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Cosimo Matteini @cosimomatteini.com · 23/03/2025

Just spent 3 amazing days at the second edition of #EffectDays @effect-ts.bsky.social! Great talks and even better conversations with the community, so many new ideas to explore! Can't wait to try Effect 4.0, its performance improvements and smaller bundle size look incredible 🚀

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Reposted by Cosimo Matteini

doubleloop @doubleloop.io · 17/01/2025

We’ve been using #TypeScript library @effect-ts.bsky.social in production for a couple of years with great satisfaction. @venomav.bsky.social and @cosimomatteini.com have developed an open-source library to simplify and enhance the integration of #MongoDB with Effect. github.com/doubleloop-i...

github.com

GitHub - doubleloop-io/effect-mongodb: A MongoDB toolkit for Effect

A MongoDB toolkit for Effect. Contribute to doubleloop-io/effect-mongodb development by creating an account on GitHub.

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Cosimo Matteini @cosimomatteini.com · 04/01/2025

I've been experimenting with #Ubuntu autoinstall to automate the installation of Ubuntu Desktop. Combined with my #dotfiles bootstrap script, I can set up a new development environment in under 30 minutes. If that sounds interesting to you, check out my blog post cosimomatteini.com/blog/automat...

cosimomatteini.com

Automate Ubuntu Desktop installation | cosimomatteini.com

Automate Ubuntu Desktop installation to quickly set up a new environment with Ubuntu autoinstall format file

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