What is Hackers' Pub?

Hackers' Pub is a place for software engineers to share their knowledge and experience with each other. It's also an ActivityPub-enabled social network, so you can follow your favorite hackers in the fediverse and get their latest posts in your feed.

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I have two opinions I want to post today:

1. You should install Signal on your phone and computer. Connect with your friends and partners on it. Use it casually, regularly, for non-sensitive messages. You'll probably never *need* an encrypted messenger, but if you someday hit a rare case where it's useful? Better it's already set up *before* you need it. Signal still requires a phone# for signup but you can use a username to message.

(This is Mastodon, so you're likely far ahead of me on this)

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Today, we’re ready to show you the upcoming quote posts feature in more detail. We’ve put together a blog post with examples of how quote posts will work on Mastodon, ahead of early access on our own servers next week 💬 Full launch to come, in Mastodon v4.5

blog.joinmastodon.org/2025/09/

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Question.

One reason I'd sometimes recommend Signal over WhatsApp is my understanding is WhatsApp leaves the contact list visible to "Meta" (or possibly simply shared the contact list with other "Meta" services like Facebook?) whereas Signal had this complicated e2e backup for the contact list. This article:

bleepingcomputer.com/news/secu

Claims WhatsApp now encrypts the contact list as well. Is this true? Is it on for all users or something you have to enable? What about importing contacts from FB?

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What does history tell us about how to stop genocides?

From Cambodia to Rwanda, no genocide in modern history has ended without military intervention.

Gaza is no exception.

AJ+ editorial lead Tony Karon explains what it will take to stop Israel’s ongoing genocide in Gaza.

aje.io/0mczc3?update=3942480



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Hi illumos Cafe! My name is Jaap, from The Netherlands, and I like a lot of IT stuff but mostly a whole lot of networking.

You wouldn't guess it, but I'm here because I'm interested in illumos.

Check out my main Mastodon profile at BSD Cafe too if you'd like: mastodon.bsd.cafe/@jaap

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I'm building a new EPYC Rome node for my home data center, trying to figure out if OmniOS can run everything I want. The last component just arrived and the machine is memtesting right now.

Over the years I've ran mostly ESXi and I've also tried to love (but didn't) Proxmox. My new node has a twin sister with a Skylake Xeon, running Fedora. If everything goes to plan the twin can be migrated to OmniOS later too.

Some specs:
- Inter-Tech 4U-4408 storage chassis
- Supermicro H11SSL-i motherboard
- AMD EPYC 7302P CPU (16 cores)
- 8x 16 GB DDR4 3200 ECC RDIMM (Samsung)
- 1x 2 TB M.2 NVMe WD SN700
- 2x 16 TB HDD Toshiba MG09

This motherboard is a little funny. You get two SFF-8643 connectors, but there's no SAS chip, so you can only break them out to SATA. Suits me fine for this build, the chassis backplanes happily take SFF-8643 too. The H11SSL-i motherboard is alright. EPYC Rome also fits a H12SSL-i which would get me PCIe 4.0, but the price for the motherboard + CPU combo would have doubled and I don't really need it for this build.

The Inter-Tech (German brand) chassis are pretty nice for affordable DIY builds. 4U is sweet because you can use regular ATX PSU's and fit heat sinks with fans that don't sound like jet engines. The heat sink I have now is a "CooNong" (? bless me) that I got with the motherboard. Looks like a clone of the same style that Supermicro sells. It came with the most crappy fan humanity ever laid eyes on so I promptly fitted a Noctua like the rest of the fans. As usual, motherboard warns about fan speeds being too low, expecting high RPM data center fans, but temps are otherwise fine. At least there's no audible warning for the fan speeds on this motherboard. The result: you can actually work right next to the machine.

Supermicro motherboard in Inter-Tech chassis with memory, M.2 SSD, storage backplane visible, ATX PSU and Noctua fans present.
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I have two opinions I want to post today:

1. You should install Signal on your phone and computer. Connect with your friends and partners on it. Use it casually, regularly, for non-sensitive messages. You'll probably never *need* an encrypted messenger, but if you someday hit a rare case where it's useful? Better it's already set up *before* you need it. Signal still requires a phone# for signup but you can use a username to message.

(This is Mastodon, so you're likely far ahead of me on this)

2. If you work a lot on a computer, you are at high risk of a vitamin D deficiency. You should probably be taking vitamin D supplements; and if you feel tired a lot, and you have a GP, you should consider asking them to test your D levels. In case of deficiency, higher-then-OTC doses are sometimes needed to reset.

In general, taking multivitamins can have many benefits. But be cautious of "B complex" vitamins, which often contain unsafe levels of B6 (one of the rare OTC vitamins you can OD on).

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I have two opinions I want to post today:

1. You should install Signal on your phone and computer. Connect with your friends and partners on it. Use it casually, regularly, for non-sensitive messages. You'll probably never *need* an encrypted messenger, but if you someday hit a rare case where it's useful? Better it's already set up *before* you need it. Signal still requires a phone# for signup but you can use a username to message.

(This is Mastodon, so you're likely far ahead of me on this)

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Cave Communities: From the Surface Border to the Deep Darkness by Raoul Manenti, 2023

From a biological perspective, the subterranean realm is one of the less studied, but at the same time, one of the most promising, theatres for new findings and research. Compared to those on the surface, the ecological conditions occurring in subterranean habitats are relatively simple

directory.doabooks.org/handle/



and this may be an optimal scenario for understanding the mechanisms allowing the colonization, adaptation, and evolution of species, as well as their interactions within local communities. Diversity in subterranean habitats is often overlooked, and few studies embrace whole communities or try to assess functional relationships between species. This Special Issue reprint comprises papers covering a wide range of aspects related to the distribution, composition, and roles of subterranean communities occurring in different typologies of subterranean habitats.
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still struggling to understand how k8s really makes a difference in the real world... I mean, I get it, I really do! But in reality, who really (reeeeeeeally) needs it?

The whole idea is really nice, but then again, I see big players taking advantage and profit from it....

I keep saying this: less is more :)

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Here is something I put together today.

Spotify on FreeBSD Guide
=========================

Requirements
------------
- Spotify Premium account
- Spotify Developer App:
1. Visit developer.spotify.com/dashboard
2. Create a new app (name it anything)
3. Note your Client ID and Client Secret
4. Set Redirect URI to: http://127.0.0.1:8888

Install Dependencies
--------------------
Some packages may be optional, but installing all ensures compatibility:

pkg install rust python cmake clang \
alsa-lib alsa-plugins alsa-seq-server alsa-sndio alsa-utils \
zita-alsa-pcmi

Versions may vary—adjust as needed for your system.

Compile librespot from Source
-----------------------------
git clone github.com/librespot-org/libre
cd librespot
cargo build --no-default-features --features "rustls-tls-native-roots rodio-backend"

Install spotify-qt
-------------------
You can install via ports or build from source:

git clone github.com/kraxarn/spotify-qt.
cd spotify-qt
mkdir build && cd build
cmake ..
make
./spotify-qt

First Run Setup
---------------
1. Launch spotify-qt
2. Enter your Spotify App ID and Secret
3. Go to Settings → Spotify and set the path to your librespot binary
4. Restart spotify-qt
5. Open Menu → Devices and select your spotify-qt instance

Done!
-----
Enjoy Spotify on FreeBSD 🎶

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Hi everyone,

@joynewaccJoy and I had video chats over Signal with three more people from Gaza today and I’d love to welcome them to the Gaza Verified family.

They are:

@abeerabed22Abeer Ehab🍉
@baraaelmoghrabiBaraa Elmoghrabi 🍉
@emanahmedEman 🍉

Please give them a warm welcome to Mastodon and the fediverse and please help with the fundraisers by donating or sharing them if you can.

Thank you all for the amazing support you’re showing our friends and their families in Palestine in their darkest hour.

gaza-verified.org

💕

PS. They will be adding the verified link to their accounts over the coming hours. Once they do, their accounts will show that the link is verified. Please bear with them as Internet access is sketchy at best in Gaza and there are sometimes technical challenges.

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Today, we’re ready to show you the upcoming quote posts feature in more detail. We’ve put together a blog post with examples of how quote posts will work on Mastodon, ahead of early access on our own servers next week 💬 Full launch to come, in Mastodon v4.5

blog.joinmastodon.org/2025/09/

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Body Image, Nutrition and Mental Health by Hubertus Himmerich, 2024

The Special Issue “Body Image, Nutrition, and Mental Health” examines and illuminates the complex relationships among body image, nutrition, and mental health. It covers the psychological and social risk factors of body image disturbances and associated disorders, biological aspects of appetite regulation and the metabolic syndrome

directory.doabooks.org/handle/




and therapeutic approaches for eating and weight disorders and their health consequences.
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The recording of the September 11th, 2025 Production User Call is up:

youtu.be/MGies9_cjPk

We discussed Eurobhyvecon, weekly git, sponsoring with Patreon, bhyve on ARM64 issues, a great Sylve article inspired by a recent call, the EDK2 update review, GPU Pass-Through, and more!

"Don't forget to slam those Like and Subscribe buttons."

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Biological Invasions in Changing Ecosystems. Vectors, Ecological Impacts, Management and Predictions by João Canning-Clode, 2019

When organisms are deliberately or accidentally introduced into a new ecosystem a biological invasion may take place. These so-called ‘invasive species’ may establish, spread and ecologically alter the invaded community.

directory.doabooks.org/handle/

($300 on Amazon)



Biological invasions by animals, plants, pathogens or vectors are one of the greatest environmental and economic threats and, along with habitat destruction, a leading cause of global biodiversity loss.  
In this book, more than 50 worldwide invasion scientists cover our current understanding of biological invasions, its impacts, patterns and mechanisms in both aquatic and terrestrial systems.
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2. If you work a lot on a computer, you are at high risk of a vitamin D deficiency. You should probably be taking vitamin D supplements; and if you feel tired a lot, and you have a GP, you should consider asking them to test your D levels. In case of deficiency, higher-then-OTC doses are sometimes needed to reset.

In general, taking multivitamins can have many benefits. But be cautious of "B complex" vitamins, which often contain unsafe levels of B6 (one of the rare OTC vitamins you can OD on).

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Biological Networks by Neda Bagheri, 2019

Networks of coordinated interactions among biological entities govern a myriad of biological functions that span a wide range of both length and time scales—from ecosystems to individual cells and from years to milliseconds. For these networks, the concept “the whole is greater than the sum of its parts” applies as a norm rather than an exception.

directory.doabooks.org/handle/



Meanwhile, continued advances in molecular biology and high-throughput technology have enabled a broad and systematic interrogation of whole-cell networks, allowing the investigation of biological processes and functions at unprecedented breadth and resolution—even down to the single-cell level. The explosion of biological data, especially molecular-level intracellular data, necessitates new paradigms for unraveling the complexity of biological networks and for understanding how biological functions emerge from such networks. These paradigms introduce new challenges related to the analysis of networks in which quantitative approaches such as machine learning and mathematical modeling play an indispensable role. The Special Issue on “Biological Networks” showcases advances in the development and application of in silico network modeling and analysis of biological systems.
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