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Fabio Niephaus

@fniephaus.com
505 followers 138 following 92 posts

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 · 21/09/2026
GraalVM 🤝 WebAssembly Join me at @bedcon.bsky.social in Berlin this Wednesday (Sep 23), where I’ll talk about all the cool #WebAssembly things you can do with @graalvm.org. ➡️ bed-con.org/2026/
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Fabio Niephaus @fniephaus.com · 19/03/2026
Excited to speak at #WasmCon Europe next Monday about bringing #WebAssembly to the JVM ecosystem with @graalvm.org. I’ll demo GraalWasm in a Spring Boot app and show how GraalVM can compile JVM apps to Wasm for browser, mobile, and cloud. Join us! Details: sched.co/2DY2u
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Fabio Niephaus @fniephaus.com · 14/01/2026
WasmGC is coming to GraalWasm, unlocking the power of JVM garbage collectors for #WebAssembly! This will also get GraalWasm a lot closer to implementing the full Wasm 3.0 spec. Join @ssmith.bsky.social and me at @jfokus.se next month to learn more: www.jfokus.se/talks.html?s...
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Fabio Niephaus @fniephaus.com · 13/11/2025
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...
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Fabio Niephaus @fniephaus.com · 28/08/2025
Looks great! I think I found a bug though. If you go straight to a page like sdkman.io/jdks/graal/, I get a broken page:
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Fabio Niephaus @fniephaus.com · 19/08/2025
Excited to be back at @Devoxx Belgium—this year talking about @graalvm.org and #WebAssembly! Don’t miss what’s next for Java & Wasm. 🙂 m.devoxx.com/events/dvbe2...
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Fabio Niephaus @fniephaus.com · 23/05/2025
Looking for tips & tricks for @graalvm.org and Graal Languages in @intellijidea.com? Join me at IntelliJ IDEA Conf '25 to learn how to use it to: 🌱 Compile, monitor, and debug native images 🐍 Embed Python, WebAssembly, and more in your Java apps 👉 Agenda at lp.jetbrains.com/intellij-ide...
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Fabio Niephaus @fniephaus.com · 17/04/2025
Did you know that #GraalPy is nicely integrated into @jbang.dev? 🐍☕️ ✅ Use Python packages in #Java ✅ Support for Python 3 ✅ Smooth interoperability via Java interfaces Full demo at: github.com/graalvm/graa...
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Fabio Niephaus @fniephaus.com · 28/03/2025
Our "javac on #WebAssembly" demo (and code!) for #WasmIO25 is up on GitHub in case you want to play with the new Wasm backend for @graalvm.org! 🚀 More details to follow soon! graalvm.github.io/graalvm-demo...
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Fabio Niephaus @fniephaus.com · 27/03/2025
"Hello from #WebAssembly generated with @graalvm.org!" 👀 (And yes, we can run more than a HelloWorld program 🤓) More at #WasmIO25 tomorrow: 2025.wasm.io/sessions/the...
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Fabio Niephaus @fniephaus.com · 09/03/2025
This is me debugging a Rust library compiled to Wasm and embedded in a @micronautfw.bsky.social microservice in @intellijidea.com: Compile with debug info, enable the Chrome Inspector for #GraalJS and #GraalWasm, and attach to the process. 🤓 Will share more details at #WasmIO later this month!
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Fabio Niephaus @fniephaus.com · 06/02/2025
github.com/graalvm/setu... 👀
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Fabio Niephaus @fniephaus.com · 20/12/2024
We just merged the current status of the upcoming JDWP support for @graalvm.org Native Image! 🥳 This will soon provide developers with the same debugging experience they are used to in Java, but for native images! Stay tuned for more details. github.com/oracle/graal...
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Fabio Niephaus @fniephaus.com · 12/12/2024
Let me just leave this here. #debugging
debugging - Being the detective in a crime movie where you are also the murderer.
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Fabio Niephaus @fniephaus.com · 04/12/2024
The free Ampere resources on Oracle Cloud are enough for me to set up even two runners that can build #TruffleSqueak in parallel!
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Fabio Niephaus @fniephaus.com · 15/11/2024
Did you know that #GraalPy makes it easy to create interactive SVG charts with Pygal in your @micronautfw.bsky.social or #SpringBoot projects? 📊🐍 Micronaut demo: github.com/graalvm/graa... Spring Boot demo: github.com/graalvm/graa... Pygal example code: www.pygal.org/en/stable/do...
A Micronaut application rendering an SVG chart with GraalPy and Pygal.The implementation of PyGalServiceMixed. IntelliJ IDEA's language injection feature provides auto-completion for Python code.For reference: the official Pygal example code.
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Fabio Niephaus @fniephaus.com · 12/11/2024
Initial support for jcmd is going to land in #GraalVM Native Image very soon! 🥳 This will bring diagnostics and monitoring of native images even closer to the HotSpot experience. JFR, heap dumps and thread dumps, JMX, and NMT are already available! Pull request at github.com/oracle/graal...
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