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Fabio Niephaus

@fniephaus.com

Research Manager on the @graalvm.org team at Oracle. Graal Languages, Native Image, developer tools, GraalVM developer experience. Previously at @hpi.bsky.social, @googlecolab.bsky.social, and @matonguitars.bsky.social. Views are my own.

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Fabio Niephaus@fniephaus.com · 4mo ago

GraalVM CE can now sandbox untrusted JavaScript and WebAssembly code! 🚀 As AI generates more and more of the code we run, the ability to execute it safely matters more than ever. We have more coming that builds on this, so stay tuned! github.com/oracle/graal...

[GR-73792] Extend Truffle runtime with Polyglot Isolate and engine sandbox features. by graalvmbot · Pull Request #13322 · oracle/graal

This pull request adds support for isolated polyglot execution and guest-language sandboxing. It extends the Truffle runtime and Polyglot API to support isolated Engine and Context execution, inclu...

github.com

Fabio Niephaus@fniephaus.com · 4mo ago

GraalWasm just got faster! 🔥 The new threaded interpreter delivers significantly better interpreter performance. In interpreter benchmarks, total execution time is reduced by 5-40%! Details: github.com/oracle/graal...

[GR-69570] Wasm threaded interpreter. by graalvmbot · Pull Request #13181 · oracle/graal

This PR updates the Wasm interpreter to incorporate the recently introduced bytecode handler design (#12825). A detailed documentation of this design can be found at https://github.com/oracle/graal...

github.com

Vsevolod Tolstopyatov@qwwdfsad.bsky.social · 9mo ago

Native Image is an *amazing* technology! Having a 150mb+ JAR full of weird compiler stuff (from jrtfs to Swing!) in kotlinc quite easily built with Native Image, and immediately yielding this kind of improvement is outstanding. Looking forward to what's next 👀

Fabio Niephaus@fniephaus.com · 9mo ago

The @kotlinlang.org team at @jetbrains.com is working on a @graalvm.org-compiled kotlinc. Early experiments look very promising: > So far, a native image with PGO offers a properly "warmed-up" kotlinc and with up to 20% more peak throughput. Ticket: youtrack.jetbrains.com/issue/KT-823...

Sébastien Deleuze@seb.deleuze.fr · 10mo ago

Nice demo from @fniephaus.com from the @graalvm.org team of a Spring Boot application summarizing various files with MarkItDown and Hugging Face Transformers popular Python libraries with GraalPy. github.com/fniephaus/gr...

GitHub - fniephaus/graalpy-spring-boot-summarize: Use MarkItDown and Hugging Face Transformers in Spring Boot to summarize various files

Use MarkItDown and Hugging Face Transformers in Spring Boot to summarize various files - fniephaus/graalpy-spring-boot-summarize

github.com

Fabio Niephaus@fniephaus.com · 10mo ago

Excited to talk about @graalvm.org and #WebAssembly tomorrow at @devoxx.com! 🚀 Join me to explore Web Image and GraalWasm — and see them in action with plenty of live demos.

GraalVM@graalvm.org · 11mo ago

Fabio @fniephaus.com will introduce Web Image, a new preview feature of GraalVM that enables compiling applications into efficient Wasm modules, including use cases and live demos. We'll also look at GraalWasm, a new embeddable Wasm runtime. m.devoxx.com/events/dvbe2...

TruffleRuby@truffleruby.dev · 11mo ago

TruffleRuby 25.0 is released! 🚀🎉 It can now run native extensions in parallel, just like Ruby code already ran in parallel in Threads on TruffleRuby! It also features many compatibility improvements and notably support for custom Digest algorithms. github.com/oracle/truff...

Release TruffleRuby 25.0.0 · oracle/truffleruby

TruffleRuby is a high-performance implementation of the Ruby programming language. It aims to be fully compatible with the standard implementation of Ruby, MRI. More information is available at htt...

github.com

GraalVM@graalvm.org · last yr.

openHAB, the open source home automation software, has integrated GraalPy!🤖🐍 "Unlike the Jython Scripting add-on, it offers full Python 3.11 support and is future-proof. It can be used as a scripting language in UI, file-based rules, and transformation services" www.openhab.org/blog/2025-07...

openHAB 5.0 Release

A new major release of openHAB is here! openHAB 5.0 comes with a lot of exciting new features and improvements, including Matter support, a new Python Scripting add-on and a ton of other enhancements.

openhab.org

IntelliJ IDEA, a JetBrains IDE@intellijidea.com · last yr.

🎉 Greetings from #IntelliJIDEAConf 2025! We’re just hours away from kicking off Day 1. Today’s sessions: ☕ 30 Years of Java with @sharatchander.bsky.social 🧪 Kotlin notebooks, GraalVM, AI apps & more 📺 Join us at 9:00 am UTC: youtube.com/live/Bd8EA8X...

IntelliJ IDEA Conf 2025. Day 1

On June 3–4, 2025, JetBrains is hosting a free virtual event – IntelliJ IDEA Conf.IntelliJ IDEA Conf is a celebration of the developer community, bringing to...

youtube.com

Fabio Niephaus@fniephaus.com · last yr.

If you are based in Prague, this is a great opportunity to learn about #GraalPy and @graalvm.org, first hand from Štěpán who's working on both!

Jakub Čecháček@jakub.cechacek.net · last yr.

🚀 @czjug.bsky.social events continue. Join us at #Oracle Prague offices to learn 💡 from Štěpán Šindelář about bridging modern Python 🐍 and the JVM ☕ ecosystem with #GraalPy and @graalvm.org 🍕 at the venue and discussion over 🍻 afterwards . #JUG #GraalPy #Java #Python #JVM #Prague