Some weekend progress on my quick* Pi5 radio terminal project. I've since added a GPS HAT, to provide accurate time for digital modes & real-time grid determination.

* About a week, +/- six weeks.

@jarkko nice!

RE: https://social.kernel.org/objects/89a9d649-aed7-412b-afa6-f3a334a08ef0

Apparently one can just claim to have codesigned any scheme now, so let it be known that Julius and I coauthored the Caesar cipher

https://openssl-conference.org/speaker?p=I

All Micro Conferences at LPC 2026 are now open for proposals! Please checkout our latest blog post for more details!

https://lpc.events/blog/current/index.php/2026/06/01/all-microconferences-have-now-been-accepted/

I think 6m is open.

Radio folk: here's something I just learned. Sporadic E propagation sometimes opens up at night. Noticed some reports from AZ last night around 11PM for my 50 MHz FT8 test transmissions. Turns out this is or was an interesting research area.


#amateurradio #hamradio

Would you like to be part of citizen science astronomy? We invite you to classify gravitational lens candidates in so-far unreleased #ESAEuclid data: "Space Warps – ESA Euclid DR1".

3000 volunteers have already made nearly 900,000 classifications, yet 70% of the project are still to be done.

All the background and link to the Zooniverse: https://www.zooniverse.org/projects/aprajita/space-warps-esa-euclid

#ESA #Euclid #astronomy #GravitationalLensing #science #CitizenScience.

2️⃣ Here's the 2nd post highlighting key new features of the upcoming v261 release of systemd. #systemd261 #systemd

When you care for a more than a single system, it is often advisable to roll out new stuff in a staged fashion: first 1% of your fleet should get it, and only after the results are in and all is good, you up it to 10%, and then to 25% and finally to 100% (or in other steps like this).

With v261, systemd is going to help you with this to some degree:

Very pleasantly surprised to discover the Voron Design open source 3D printer community in recent weeks. I'd heard the name but didn't know much about it, especially the size & broad scope of things.

So many experiments & side quests, not just in 3DP, but across all kinds of CNC, kinematics, embedded hw, & of course, software hacking.

There's also a network of very cool small businesses supporting all this with kits, components, innovations etc.

https://vorondesign.com/

Trying to avoid starting yet another project of the venerable "crazy but not actually impossible" class.

Minneapolis backrooms.

🎟️ Tickets 🎟️ are now on sale for All Systems Go! 2026 in Berlin on Sept 30th-Oct 1st!
ASG! is the premier event focused on foundational user-space Linux technologies.
Since 2025, All Systems Go! is a fully attendee-funded event; ticket prices can be adjusted ⬆️ or ⬇️.

🎟️ Get your tickets: https://ti.to/all-systems-go/all-systems-go-2026
ℹ️ More info: https://all-systems-go.io/
🗣️ CFP is open till June 14th: https://cfp.all-systems-go.io/all-systems-go-2026/cfp

📣 One month left to submit your talk to All Systems Go!, the conference focused on foundational user-space Linux technologies. This is a shared layer across all domains whether servers, cloud, desktop, embedded, edge... whatever runs Linux.

Join us in Berlin📍, Sept 30th-Oct 1st 📆!

🎤 Submit your talk here: https://cfp.all-systems-go.io/all-systems-go-2026/cfp
ℹ️ Learn more: https://all-systems-go.io
🎟️ Or just get tickets here: https://ti.to/all-systems-go/all-systems-go-2026

It's that time again! The systemd v261 release is coming closer. Let's restart the "what's new" series of posts for this iteration! Hence:

1️⃣ Here's the 1st post highlighting key new features of the upcoming v261 release of systemd. #systemd261 #systemd

systemd-repart is systemd's dynamic disk partitioner and image generation tool. It only deals with GPT disk labels – or more precisely, it only dealt with GPT disk labels *so* *far*. With v261 there's…

The RISC-V microconferecnce has been accepted for @linuxplumbersconf 2026 in Prague this October 5-7. The Call For Papers is currently open: https://lpc.events/event/20/contributions/2333/

The microconference is composed of sessions between 15 to 30 minutes for a total of 3.5 hours of technical discussion.

Proposals can be submitted here:
https://lpc.events/event/20/abstracts/

#linuxkernel #riscv #linuxplumbers

It's the weekend, finally.

What are you all working on, or doing, or not doing?

A reminder that LSS-NA is happening a week from now in Minneapolis, MN!

Note that we have had three speakers withdraw due to circumstances beyond their control. We hope they are able to present their work at future community events, including LSS, where possible.

We've now added a Hackathon session on Day 2 (Friday May 22), where folk can work together in person on solving Linux OS security challenges of their choice. This could be for brainstorming, high-level design, PoC development, bugfixing etc. Utilization of generative AI is welcome.

As always, we will also have BoF sessions. Folk may also use these to make brief lightning style talks as appropriate, which may be useful for pitching new ideas or highlighting issues to the Linux OS security community. We've seen this work well over the past few LSS events.

🐧 See the current schedule here: https://events.linuxfoundation.org/linux-security-summit-north-america/program/schedule/

🐧 Register here: https://events.linuxfoundation.org/linux-security-summit-north-america/


p.s. There are rumors of new LSS stickers being made available at the conference.

RE: https://social.kernel.org/objects/c4f0df7b-54a7-4724-a67d-4fbe7a89d375

Are we heading towards Extinction Level Enshittification?

Doing a bit of a deep dive into 3D printing engineering filaments this weekend. Nylon + CF is a great all-rounder, it seems. Perhaps like how 6061 Aluminium is for metal fabrication.

Cool!

I've just been accepted to do a Build a lightning detector workshop at #emf

I'll drag @Extelec to help out, of course :)

https://extkits.co.uk/product/lightning-detector/

Shout out to the “roll over to zoom in 🔎” enthusiasts. bless your hearts.