TechBrief — تازه‌ترین اخبار فناوری

Iran-Linked Hackers Are Sabotaging US Energy and Water Infrastructure

As Trump threatens Iranian infrastructure, the US government warns that Iran has carried out its own digital attacks against US critical infrastructure.

Spotify’s Prompted Playlists can help you find new podcasts to listen to

On Tuesday, Spotify expanded its Prompted Playlists feature to include podcasts, an update that could make it easier for Premium users to find new shows to listen to. Prompted Playlists were originally launched as a beta feature in December, but previously only worked for music. You can use the feature to effectively generate customized Discover […]

What the heck is wrong with our AI overlords?

New profile of Sam Altman shines a light on a whole industry.

Iranian hackers are targeting American critical infrastructure, US agencies warn

A joint FBI, NSA, and CISA advisory warns that Iranian hackers have 'escalated' their tactics in response to the ongoing U.S.-Israel war with Iran.

Cells for NetBSD: kernel-enforced, jail-like isolation

Article URL: https://netbsd-cells.petermann-digital.de/

Comments URL: https://news.ycombinator.com/item?id=47680532

Points: 6

# Comments: 2

S3 Files and the changing face of S3

Article URL: https://www.allthingsdistributed.com/2026/04/s3-files-and-the-changing-face-of-s3.html

Comments URL: https://news.ycombinator.com/item?id=47680404

Points: 38

# Comments: 8

Show HN: Gemma 4 Multimodal Fine-Tuner for Apple Silicon

About six months ago, I started working on a project to fine-tune Whisper locally on my M2 Ultra Mac Studio with a limited compute budget. I got into it. The problem I had at the time was I had 15,000 hours of audio data in Google Cloud Storage, and there was no way I could fit all the audio onto my local machine, so I built a system to stream data from my GCS to my machine during training.

Gemma 3n came out, so I added that. Kinda went nuts, tbh.

Then I put it on the shelf.

When Gemma 4 came out a few days ago, I dusted it off, cleaned it up, broke out the Gemma part from the Whisper fine-tuning and added support for Gemma 4.

I'm presenting it for you here today to play with, fork and improve upon.

One thing I have learned so far: It's very easy to OOM when you fine-tune on longer sequences! My local Mac Studio has 64GB RAM, so I run out of memory constantly.

Anywho, given how much interest there is in Gemma 4, and frankly, the fact that you can't really do audio fine-tuning with MLX, that's really the reason this exists (in addition to my personal interest). I would have preferred to use MLX and not have had to make this, but here we are. Welcome to my little side quest.

And so I made this. I hope you have as much fun using it as I had fun making it.

-Matt

Comments URL: https://news.ycombinator.com/item?id=47680309

Points: 27

# Comments: 2

Bluesky users are mastering the fine art of blaming everything on "vibe coding"

Use of AI coding tools has become a convenient boogeyman for any tech issues.

You can now turn 2D apps into 3D while using the Galaxy XR headset

Android XR is getting a new feature that turns 2D apps, websites, images, and videos into "3D experiences." The feature, which Google calls "auto-spatialization," was initially announced last year, and it's launching on Tuesday as an experimental feature for Samsung Galaxy XR headsets. Here's a video from Google that gives you an idea about how […]

I wish this selfie phone case was better for selfies

The Selfix phone case is a classic example of a great idea in theory that falls apart in practice. It's a case for the iPhone 17 Pro with a circular screen on the back. It mirrors the middle of your main phone screen, making it easier to frame up selfies using your phone's higher-quality rear […]