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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 · 2w ago

Curious what’s new in @graalvm.org? Meet me at: 🇧🇪 @devoxx.com BE · Oct 5–9 🇨🇭 @jugch.bsky.social, Zurich · Oct 20 🇨🇭 GraalVM Community Summit · Oct 21–22 🇲🇦 #DevoxxMA · Nov 4–5 I’ll share the latest – from Native Image, Python, and WebAssembly to Oracle Database. Where will I see you? 👋

GraalVM@graalvm.org · 2w ago

Join us at @devoxx.com next week! Explore what's new across the GraalVM ecosystem — from Native Image and Python to AI — and bring your questions! @thomaswue.dev @alina-yurenko.bsky.social @graemerocher.bsky.social @fniephaus.com

Fabio Niephaus@fniephaus.com · 6mo 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 · 7mo 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 · 11mo 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 · 11mo 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 · 12mo 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 · last yr.

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 · last yr.

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 · last yr.

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