Posts
658
Following
540
Followers
438
Linux Kernel security developer, working for Microsoft. Also W7TXT. Views are my own.
Topics: #Linux #kernel #security, #amateurradio, #RF, #hamradio, #electronics, #science, #radioastronomy, #physics, #space, #arduino.

📡 https://w7txt.net/
🐧 https://blog.namei.org/
☠️ https://www.facebook.com/w7txt
jmorris

James Morris

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.
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jmorris

James Morris

Reply to @jarkko
@jarkko Interesting take ;-) You are probably right but I tried it once in the 90s and did not enjoy.
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jmorris

James Morris

Reply to @MLE_online@social.afront.org
@MLE_online thanks, I hate it.
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jmorris

James Morris

Reply to @drfootleg@fosstodon.org
@drfootleg I've been involved in grassroots motorsports lately and it really is full of hackers & makers (fabrication, welding, mechanical engineering, etc).
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jmorris

James Morris

Reply to @drfootleg@fosstodon.org
@drfootleg these Raspberry Pis are getting huge
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jmorris

James Morris

@jarkko nice!

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

James Morris

Reply to @th@v.st
@th idly I wonder to what extent it is an analog computer.
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jmorris
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sophieschmieg@infosec.exchange

Sophie Schmieg

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

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linuxplumbersconf@mastodon.social

Linux Plumbers Conference

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/

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jmorris

James Morris

I think 6m is open.
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jmorris

James Morris

Reply to @_the_cloud@mastodon.social
@_the_cloud I remember these, for cooling fluid.
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jmorris

James Morris

Reply to @ai6yr@m.ai6yr.org
@ai6yr 146.520 seems to be on the wane for some reason. I often monitor it when driving long distances and used to hear the odd mobile or POTA station, but very rarely in the past year or so.
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jmorris

James Morris

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
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jmorris
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ec_euclid@mastodon.social

Euclid Consortium

Would you like to be part of citizen science astronomy? We invite you to classify gravitational lens candidates in so-far unreleased 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

.

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jmorris

James Morris

Reply to @gigabecquerel@chaos.social
@gigabecquerel interesting! Last time I looked into this no conductive filament could carry the right level of current.
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jmorris
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pid_eins@mastodon.social

Lennart Poettering

2️⃣ Here's the 2nd post highlighting key new features of the upcoming v261 release of 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:

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jmorris
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veronica@explains.social

Veronica Explains

Reply to @veronica@explains.social

I also wrote up a blog post about my writerdeck which goes into a smidge more detail about how I set things up. kmscon is really a viking here.

https://veronicaexplains.net/my-first-writerdeck/

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jmorris

James Morris

Reply to @slyka@pawb.fun
@slyka what is it?
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jmorris

James Morris

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.
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elonjet@mastodon.social

Elon Musk's Jet

Reply to @elonjet@mastodon.social

~ 1,352 gallons (5,117 liters).
~ 9,059 lbs (4,109 kg) of jet fuel used.
~ $9,800 cost of fuel.
~ 14 tons of CO2 emissions.

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