Sylvain Bernard

Expert IT & Developer

[John A De Goes @jdegoes]

Just blogged, "Wicked-Fast on the JVM".

Find out how to make Java/Scala/Kotlin code run blisteringly fast on the JVM. 👇

(Or at least, point your coding agent at my article.😉)

https://t.co/7G72ibYHuS

[Sylvain Bernard @bernardsylvain4]

@SakshiSugandhi Kotlin + Java 25 FFM + Rust.

No more JNI.

No more JNA.

Just fast, clean native code.

#Kotlin #Java25 #FFM #RustLang #JVM #Programming #Performance

[Kotlin by JetBrains @kotlin]

Kotlin is moving toward name-based destructuring – new syntax that will make reordering and moving properties a breeze.

No worries: There will be a long migration period with compiler and IDE support.

Learn what’s changing and how the migration will work 👇
https://t.co/fAiCHBPZbL

[Animesh @animesh_xd]

I built a free, open-source Postman alternative in #Rust.

Postman gets expensive fast. Bruno is good, but it’s still Electron-based and inherits browser-stack limitations.

So I built #Rustman.

~20 MB
No account
No cloud sync
No telemetry

Native Rust HTTP engine.
Pre/post-request scripting with async JS.
Environment vars, request chaining, keyboard-first workflow, collections, history, auth support, Postman import, and more.
Built with Tauri v2 + Rust + React.
MIT licensed.
v0.3.0 is out now.
Contributions welcome.
https://t.co/aCrsQA1jMT
https://t.co/6Y0zmLWK63

#opensource #rustlang #tauri #webdev #buildinpublic

[Adham Dannaway @AdhamDannaway]

💚 10 Principles for Fluid UI

Practical motion design tips to help create interfaces that feel great.

1. Motion Should Be Physics-Based, Not Time-Based
2. Every Animation Must Be Interruptible
3. Direct Manipulation Over Indirect Control
4. Preserve Velocity Across Gesture Boundaries
5. Use Shared Element Transitions to Maintain Spatial Context
6. Respond to Input Method, Not Just Screen Size
7. Animate Layout Changes, Don’t Teleport
8. Apply Progressive Resistance at Boundaries
9. Choreograph Sequences, Don’t Reveal Everything at Once
10. Respect the User’s Motion Preferences

Read the article 👇
https://t.co/36NSb3Lhva

By Karl Koch

[ZardUI @zard_ui]

Zard UI is composable

like radix.
Slot-based like shadcn.
Open source and yours to fork like both.
But native Angular.

https://t.co/SS7BWIHGYy

[Kotlin by JetBrains @kotlin]

🤖 Kotlin agent skills are now available on GitHub!

Explore AI-assisted skills for converting Java to Kotlin, migrating to AGP 9.0, mapping JPA entities, and moving from CocoaPods to Swift Package Manager.

Check out the repository 👇 https://t.co/F6DMbfXsb6

[Umesh Kumar Yadav @Umesh__digital]

Dennis Ritchie created C in the early 1970s without Google, Stack Overflow, GitHub, or any AI ( Claude, Cursor, Codex) assistant.

- No VC funding.
- No viral launch.
- No TED talk.
- Just two engineers at Bell Labs. A terminal. And a problem to solve.

He built a language that fit in kilobytes.

50 years later, it runs everything.

Linux kernel. Windows. macOS.

Every iPhone. Every Android.

NASA’s deep space probes.

The International Space Station.

> Python borrowed from it.
> Java borrowed from it.
> JavaScript borrowed from it.

If you have ever written a single line of code in any language, you did it in Dennis Ritchie’s shadow.

He died in 2011.
The same week as Steve Jobs.
Jobs got the front pages.
Ritchie got silence.

This Legend deserves to be celebrated.

[Sylvain Bernard @bernardsylvain4]

@_Chandan_17 Kotlin

[Sylvain Bernard @bernardsylvain4]

@noor36758 Postgresql

[Sylvain Bernard @bernardsylvain4]

@Palak3312 Java -> kotlin -> rust dll (ffm api)

[Sylvain Bernard @bernardsylvain4]

@Saanvi_dhillon https://t.co/vsvAlvAhEF et un peu notepadd++

[Bruno Borges @brunoborges]

Fresh #gRPC benchmarks just dropped (Apr 2026) and the results are 🌶️

# 1 CPU: #Rust Tonic dominates at 102K req/s using just 15 MiB RAM

# 2-4 CPUs: #Java Vert.x takes the crown at 153K req/s... but needs 305 MiB to do it

Meanwhile Rust Thruster does 139K req/s on 12 MiB. That's 25x less memory than Java.

#dotNET quietly sitting at #4-#8 across all configs. No hype, just solid numbers. The boring enterprise choice... that keeps winning.

Scala Pekko & Akka? Surprise top-5 finishers at 3-4 CPUs. JVM tuning is real.

Now let's talk about the bottom of the chart:

- #Python: 4,492 req/s (1 CPU)
- #Node: 12,471 req/s (1 CPU)

That's 23x slower than Rust.

Node doesn't even scale past 1 CPU — 16K req/s whether you give it 1 or 4 cores 💀

But sure, "developer productivity" even when it is AI generating code these days... 🫠

Full results → https://t.co/Tg7wyCQ9Xh

[Nicos Nicolaou @nicolaou_nicos]

🚀 Kotlin 2.4.0-Beta2 is here!

Highlights:
• Companion Extensions
• JVM target 26
• Wasm incremental compilation
• Better Swift export (Flow, coroutines, generics)
• Gradle 9.4 support
• Tons of fixes across JVM, JS, Native

https://t.co/SGAdVp8ZS8

#Kotlin #AndroidDev

[Kotlin by JetBrains @kotlin]

kotlinx.rpc now supports gRPC for Kotlin Multiplatform.

🚀 The first gRPC KMP version is now available as a dev preview, bringing most core gRPC features to JVM, Android, and native targets – plus a KMP Protobuf implementation.

Learn more 👉 https://t.co/3ydTZpNB71

[Jahir Sheikh @jahirsheikh8]

Programming languages and what they’re built with

• C → Written in Assembly
• C++ → Written in C
• Java → Written in C++
• Python → Written in C
• JavaScript (V8 engine) → Written in C++
• Go → Written in C (initially), now mostly Go
• Rust → Written in Rust (bootstrapped from OCaml)
• TypeScript → Written in TypeScript
• Kotlin → Written in Kotlin
• Swift → Written in C++
• PHP → Written in C
• Ruby (MRI) → Written in C
• C# → Written in C++
• Dart → Written in C++
• Scala → Written in Scala
• Haskell (GHC) → Written in Haskell
• Elixir → Written in Elixir (runs on Erlang VM)
• Erlang → Written in C
• Zig → Written in Zig
• Bash → Written in C
• Lua → Written in C
• Julia → Written in Julia + C
• R → Written in C + Fortran
• Objective-C → Written in C

[ayesha @ayesha_fatiima]

Google uses Java.
Amazon uses Java.
Netflix uses Java.
LinkedIn uses Java.
Oracle uses Java.
Uber uses Java.
Spotify uses Java.
Meta uses Java.
Twitter uses Java.
Intel uses Java.
Goldman Sachs uses Java.

​What's stopping you from learning Java?

[Sylvain Bernard @bernardsylvain4]

@Anaya_sharma876 Une fois que tu maîtrises vraiment Spring, difficile de revenir en arrière

L’écosystème est cohérent puissant et pensé pour la production. Tu gagnes en fiabilité et en sérénité

Oui c’est aussi une compétence très recherchée sur le marché, surtout sur des projets backend solides

[Sylvain Bernard @bernardsylvain4]

@Anaya_sharma876 Spring, ce n’est pas juste un framework — c’est un véritable écosystème avec une forte valeur ajoutée :

Spring Security, :

→ Authentification (login, JWT, OAuth2, SSO)
→ Autorisation (rôles, permissions fines)
→ Protection (CSRF, CORS, headers, sessions)

[Sylvain Bernard @bernardsylvain4]

@Anaya_sharma876 Spring Boot simplifie énormément le testing :

→ Tests unitaires et d’intégration
→ Context Spring isolé par couche (Web, Data…)
→ Mocking facile (MockMvc, WebTestClient)
→ Tests proches du réel sans complexité

Tu testes vraiment ton app, pas juste du code isolé.

[Sylvain Bernard @bernardsylvain4]

@Anaya_sharma876 + Gradle en java/kotlin, c’est le moteur de build moderne de l’écosystème Spring :

→ Build rapide (incremental + cache)
→ DSL Kotlin puissant et typé
→ Gestion fine des dépendances
→ Multi-modules et monorepo

Tu maîtrises ton projet de A à Z, même à grande échelle.