Marcos Sevilla 🦄💙 (@MarcosJSevilla) header
Marcos Sevilla 🦄💙 (@MarcosJSevilla) profile picture

Marcos Sevilla 🦄💙

@MarcosJSevilla

technical delivery lead and open source @vgventures

 Barcelona, Spain
marcossevilla.dev
Joined August 2015
  • Tweets12.7K
  • Following415
  • Followers1.3K
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Photo by Marcos Sevilla 🦄💙 (@MarcosJSevilla)Photo by Marcos Sevilla 🦄💙 (@MarcosJSevilla)Photo by Marcos Sevilla 🦄💙 (@MarcosJSevilla)Photo by Marcos Sevilla 🦄💙 (@MarcosJSevilla)Photo by Marcos Sevilla 🦄💙 (@MarcosJSevilla)Photo by Marcos Sevilla 🦄💙 (@MarcosJSevilla)Photo by Marcos Sevilla 🦄💙 (@MarcosJSevilla)Photo by Marcos Sevilla 🦄💙 (@MarcosJSevilla)Photo by Marcos Sevilla 🦄💙 (@MarcosJSevilla)Photo by Marcos Sevilla 🦄💙 (@MarcosJSevilla)
Marcos Sevilla 🦄💙 retweeted
Flutter (@FlutterDev) profile picture
Flutter
@FlutterDevNov 2
Flutter 3.47.9 is live on stable with native asset fixes. Resolving flutter/192933: run flutter test reliably across pub workspaces, monorepos, and symlinked paths without crashes. goo.gle/4zZxiDG
flutter/CHANGELOG.md at stable · flutter/flutter

flutter/CHANGELOG.md at stable · flutter/flutter

Flutter makes it easy and fast to build beautiful apps for mobile and beyond - flutter/flutter

github.com
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kevmoo (@kevmoo) profile picture
kevmoo@kevmooNov 3
Agentic coding kinda feels like putting on "power armor". You can jump into almost any codebase and feel productive instantly. Please remember, generating the diff is the easy part. Reviewing and maintaining still falls on humans.
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Andrew Brogdon (@redbrogdon) profile picture
Andrew Brogdon
@redbrogdonSep 16
It doesn't get as much press as Fast or Beautiful, but Open is one of the original four pillars of Flutter. 🤝 I'm stoked to see the team's new design doc process. It's more inclusive and more predictable. See the results beginning to land in the new repo: github.com/flutter/rfc!
GitHub - flutter/rfc

GitHub - flutter/rfc

Contribute to flutter/rfc development by creating an account on GitHub.

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Felix Angelov 💙 (@felangelov) profile picture
Felix Angelov 💙@felangelovSep 15
Just released equatable v3.0.0 🎉 pub.dev/packages/equatable
equatable | Dart package

equatable | Dart package

A Dart package that helps to implement value based equality without needing to explicitly override == and hashCode.

pub.dev
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Dart Language (@dart_lang) profile picture
Dart Language@dart_langSep 8
Announcing the skills CLI 1.0! 🎯 Package authors can now ship official AI agent instructions directly inside their packages. Discover skills from your dependencies: 👉 dart run skills@ get 🔗 dart.dev/blog/skills-cli-1-0…
Skills CLI 1.0: Bundle and distribute AI agent skills for your packages

Skills CLI 1.0: Bundle and distribute AI agent skills for your packages

Ship official AI agent skills directly with your packages to improve discoverability.

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Flutter (@FlutterDev) profile picture
Flutter
@FlutterDevAug 12
We’ve pieced together something special... Flutter 3.47 is officially here! 🩵 This release includes: 🧩 Material and Cupertino as standalone packages 🧩 Impeller as the default renderer for desktop 🧩 Stable Widget Previews Details → goo.gle/3TWyDeT
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Flutter (@FlutterDev) profile picture
Flutter
@FlutterDevAug 11
Flutter 3.44.9 is now available on stable! 🚀 This resolves an issue where the Flutter CLI and tests would hang if an iOS app crashed during debugging. Check out the CHANGELOG for details here: goo.gle/4fTnGn7
flutter/CHANGELOG.md at stable · flutter/flutter

flutter/CHANGELOG.md at stable · flutter/flutter

Flutter makes it easy and fast to build beautiful apps for mobile and beyond - flutter/flutter

github.com
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Flutter (@FlutterDev) profile picture
Flutter
@FlutterDevJun 17
Flutter 3.44.2 was just released, containing 4 fixes and improvements 🪲 Check out the CHANGELOG for details here: goo.gle/4uPK3Ow If you have any feedback on this release, please report it here: github.com/flutter/flutter/i…
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Tim Sneath (@timsneath) profile picture
Tim Sneath
@timsneathJun 9
One of my personal favorite features announced at WWDC will I suspect be a sleeper hit: container machines, allowing your Mac to run a lightweight, persistent Linux environment with your home directory and repos automatically mounted: github.com/apple/container/b…
container/docs/container-machine.md at main · apple/container

container/docs/container-machine.md at main · apple/container

A tool for creating and running Linux containers using lightweight virtual machines on a Mac. It is written in Swift, and optimized for Apple silicon. - apple/container

github.com
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Eric Seidel (@_eseidel) profile picture
Eric Seidel@_eseidelApr 17
There is a lot of confusion around what Flutter Web is/isn't for. shorebird.dev/blog/flutter-w…
Flutter Web Explained: When to Use It (And When Not To)

Flutter Web Explained: When to Use It (And When Not To)

Thinking about using Flutter Web? Read this first. Learn the pros, cons, and ideal use cases for Flutter Web directly from the original creator of Flutter.

shorebird.dev
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Eric Seidel (@_eseidel) profile picture
Eric Seidel@_eseidelApr 14
We prototyped a Flutter-specific app size analyzer. If there's interest, it wouldn't be hard to ship.
Image from Eric Seidel (@_eseidel)
Huy (@HuyNguyenTw) profile pictureHuy@HuyNguyenTwApr 14
How big is your Flutter app's Android release?
Image from Huy (@HuyNguyenTw)
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Remi Rousselet (@remi_rousselet) profile picture
Remi Rousselet@remi_rousseletApr 14
Looks like GetX is possibly compromised. Until everything is resolved, if you're using GetX: - Pin the vesion in your pubspec.yaml (remove >= or ^), to avoid downloading any malware - You can still access forks of the repo. I've found this one: github.com/violet-waves/getx
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Felix Angelov 💙 (@felangelov) profile picture
Felix Angelov 💙@felangelovMar 22
Just released hydrated bloc v11.0.0 🎉 pub.dev/packages/hydrated_bl…
hydrated_bloc | Dart package

hydrated_bloc | Dart package

An extension to the bloc state management library which automatically persists and restores bloc states.

pub.dev
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Morgan :) (@__davidmorgan__) profile picture
Morgan :)
@__davidmorgan__Mar 17
Released `build_runner` 2.13, mostly performance improvements :) pub.dev/packages/build_runne… It's faster across the board, but particularly for large projects: with these improvements plus an upcoming analyzer release, an incremental build on 10000 files that used to take 45s with 2.12 is now nearly 5x faster, just 9.5s. Full benchmark numbers are here: github.com/dart-lang/build/p…
build_runner changelog | Dart package

build_runner changelog | Dart package

A build system for Dart code generation and modular compilation.

pub.dev
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Lukas Klingsbo 💙🔥 (@spydon) profile picture
Lukas Klingsbo 💙🔥@spydonFeb 24
Really looking forward to the Dart primary constructors that are planned to be released during 2026!
Image from Lukas Klingsbo 💙🔥 (@spydon)
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Felix Angelov 💙 (@felangelov) profile picture
Felix Angelov 💙@felangelovFeb 12
Unfortunately couldn’t upgrade to Flutter 3.41 and Dart 3.11 because coverage reporting is broken 😞 github.com/dart-lang/test/is…
Coverage Generation is broken for workspace packages · Issue #2570 · dart-lang/test

Coverage Generation is broken for workspace packages · Issue #2570 · dart-lang/test

When executing tests with coverage collection in a child package of a workspace, the coverage is always empty. Steps to Reproduce Create an empty dart package Create a child package below that pack...

github.com
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Felix Angelov 💙 (@felangelov) profile picture
Felix Angelov 💙@felangelovFeb 9
New version of bloc_tools just dropped 🎉 If you're using pub workspaces, this new releases fixes several bugs with analysis option resolution. pub.dev/packages/bloc_tools
Image from Felix Angelov 💙 (@felangelov)
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Kilian Schulte 💙 (@schultek_dev) profile picture
Kilian Schulte 💙@schultek_dev25 Oct 2025
I've been experimenting with using the new analyzer plugin API for code generation, and it's actually really cool! ⚡️ Instant code generation 🔬 Surgical updates in the same file 🔎 Report outdated/wrong code as lint warnings 🪄 Auto-regenerate outdated/wrong code via 'dart fix'
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Jonas Uekötter (@ue_man) profile picture
Jonas Uekötter@ue_man26 Sep 2025
Today @MarcosJSevilla is speaking about creating PassKit (the cards in Apple Wallet) at Fluttercon. It uses a library I wrote to create those passes. Wild to see other people giving talks that include software I wrote 🤯
Image from Jonas Uekötter (@ue_man)
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DevLokos (@DevLokos) profile picture
DevLokos
@DevLokos27 Mar 2025
Hablamos con Marcos Sevilla (@MarcosJSevilla) 🇳🇮 sobre las mejores prácticas para estructurar proyectos en Flutter. ¿Cómo elegir la arquitectura correcta? 🤔💡 Escucha en Spotify, Apple Podcasts, Amazon Music y YouTube! 🎧📺 youtu.be/aVQspv07ML0 📌
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