Lup Yuen Lee 李立源 @lupyuen@qoto.org

30 km Hike: HarbourFront to Jurong East and Back

https://strava.app.link/b0GSEkQTnQb

#GitHubActions has become seriously costly for Apache #NuttX RTOS ... Here's how we slashed GitHub Costs within Two Weeks

Article: https://lupyuen.org/articles/ci3.html

Upcoming: Slint #RustLang GUI for Apache #NuttX RTOS 🎉

Source: https://github.com/apache/nuttx-apps/pull/2967

"Smallest USB Device… So Far" (#STM32 F042)

https://hackaday.com/2025/01/20/smallest-usb-device-so-far/

#RustLang Tokio Async Functions working beautifully ... On Apache #NuttX RTOS 🎉

Source: https://github.com/lupyuen2/wip-nuttx-apps/blob/rust-std/examples/rust/hello/src/lib.rs

Hacker News discovered my new article 😬

Article: https://lupyuen.org/articles/uname.html

Whisker: WiFi / USB Hacking Device (#ESP32-S3)

https://www.crowdsupply.com/devkitty/whisker

#RustLang `nix` Crate blinks the LED ... On Apache #NuttX RTOS 🎉

Source: https://github.com/lupyuen2/wip-nuttx-apps/blob/rust-std/examples/rust/hello/src/lib.rs

Testing the `nix` #RustLang Crate ... On Apache #NuttX RTOS 🎉

Source: https://github.com/lupyuen2/wip-nuttx-apps/blob/rust-std/examples/rust/hello/src/lib.rs

Star64 #JH7110:
Peripheral Access Crate (#RISCV #RustLang)

https://codeberg.org/weathered-steel/jh71xx-pac

34 km Hike: City to Changi Airport

https://strava.app.link/MLqfJVGehQb

Google Vertex AI: RAG Engine (Retrieval-Augmented Generation)

https://cloud.google.com/vertex-ai/generative-ai/docs/rag-overview

"For $53, the OrangePi 4A 4GB is a decent board ... If you need more cores and NVMe, then the OrangePi 4A is for you" (Allwinner T527 / 8-core Arm A55)

https://www.tomshardware.com/raspberry-pi/orangepi-4a-review

`uname` on Apache #NuttX RTOS became unusually quieter: Commit Hash is Missing! Watch as we stomp the seemingly simple bug ... That turns out to be something seriously sinister! (Spoiler: Static Vars are broken)

https://lupyuen.org/articles/uname.html

#FreeBSD Journal: Virtualization

https://freebsdfoundation.org/our-work/journal/browser-based-edition/virtualization-2/

"Marcel Proust: A Very Short Introduction"

https://share.libbyapp.com/title/11257540