Hacker News: _ks3e

New comment by _ks3e in "Apple Keynote now showing ads in its UI"

_ks3e — Wed, 14 Oct 2026 16:44:11 +0000

The people running subscription services within Apple may be measured on metrics (subscriber count/growth) that may not be aligned with the long-term interests of the company as a whole, especially since brand value and the effect of software advertising on hardware sales are hard to quantify.

New comment by _ks3e in "Apple has added persistent 'ads' to iOS, and it's driving users crazy"

_ks3e — Tue, 22 Sep 2026 15:23:18 +0000

There are a few projects that let you access iMessage on non-Apple devices. I've been using https://github.com/lrhodin/corten-matrix to relay iMessage to Matrix, and there's also https://openbubbles.app/ for something that runs solely on an Android phone.

New comment by _ks3e in "Minimal Phone 2"

_ks3e — Fri, 18 Sep 2026 22:22:12 +0000

Isn't this just the Air?

New comment by _ks3e in "Giving up on smart rings"

_ks3e — Tue, 15 Sep 2026 21:39:28 +0000

Perhaps you could reinforce both the outside and the inside, so any swelling would be directed parallel to the finger?

New comment by _ks3e in "Giving up on smart rings"

_ks3e — Tue, 15 Sep 2026 21:32:50 +0000

The bluetooth protocol has been reverse-engineered and you can run everything locally with https://github.com/Th0rgal/open_oura

New comment by _ks3e in "Creepy Crawlies"

_ks3e — Sun, 30 Aug 2026 17:57:37 +0000

Good news: https://krebsonsecurity.com/2026/07/lg-to-ban-residential-pr...

New comment by _ks3e in "iCloud+ Hide My Email addresses will remain on icloud.com"

_ks3e — Tue, 25 Aug 2026 02:08:07 +0000

Not arbitrarily many aliases - there's a limit of (as of two or three weeks ago) 768.

New comment by _ks3e in "HP trialed mandatory 15-minute support call wait times (2025)"

_ks3e — Fri, 20 Mar 2026 14:57:25 +0000

The spinoff for lab and scientific equipment (Agilent, 1999) happened long before the HP/HPE split (2015).

New comment by _ks3e in "AirPods Max 2"

_ks3e — Tue, 17 Mar 2026 15:06:53 +0000

You don't have to melt through that adhesive - it's incredibly weak and you can just pop it out with a sufficiently thin pry bar. This guide [1] does it with an iSesamo, but I just used a utility knife since I had one on hand and wasn't particularly concerned with scratches (the entire seam is covered by the headphone pads, so scratches around it are invisible).

[1]: https://docs.kenp.io/airpods-max/usb-c-kit/v1dot1_assembly/

New comment by _ks3e in "Six ingenious ways how Canon DSLRs used to illuminate their autofocus points"

_ks3e — Mon, 16 Mar 2026 19:14:06 +0000

The only AF systems that use LIDAR are the one on the newest Hasselblad medium format mirrorless cameras (since DJI owns Hasselblad and can leverage the tech from drones/cinema cameras) and possibly some phones.

I suspect it's fairly challenging to implement since the LIDAR sensor doesn't operate through the lens, so you'd have to continuously align the depth map with the image to account for parallax; plus it's only useful for close-ish distances (since the lasers can't be too powerful) and can cause unwanted focus behavior with windows or reflections.

New comment by _ks3e in "AirPods Max 2"

_ks3e — Mon, 16 Mar 2026 18:55:19 +0000

Replacing the batteries on the Maxes is actually a fairly straightforward process (no adhesive melting required, just a screwdriver and a pry bar), and spare batteries can be purchased on Amazon or Ebay for around 50 USD. It's one of the better Apple products in that regard, very unlike the in-ear models.

New comment by _ks3e in "Cache-friendly, low-memory Lanczos algorithm in Rust"

_ks3e — Tue, 11 Nov 2025 20:26:20 +0000

It's nice to see some high-performance linear algebra code done in a modern lanugage! Would love to see more!

Is your approach specific to the case where the matrix fits inside cache, but the memory footprint of the basis causes performance issues? Most of the communication-avoiding Krylov works I've seen, e.g [0,1] seem to assume that if the matrix fits, so will its basis, and so end up doing some partitioning row-wise for the 'large matrix' case; I'm curious what your application is.

[0] https://www2.eecs.berkeley.edu/Pubs/TechRpts/2007/EECS-2007-..., e.g. page 25. [1] https://www2.eecs.berkeley.edu/Pubs/TechRpts/2015/EECS-2015-...

New comment by _ks3e in "Show HN: Ts-SSH – SSH over Tailscale without running the daemon"

_ks3e — Fri, 20 Jun 2025 17:28:50 +0000

It's possible to use Tailscale with just a passkey [0], but it's a weird process because they don't let you create a tailnet and a passkey account at the same time. Instead, you need to create an account with a throwaway FAANG credential and send yourself an invite to that account's tailnet, and then use that invite to create a passkey-linked Tailscale account. This account can then create its own tailnet, at which point the original tailnet (and the throwaway FAANG account) can be discarded.

It's a weird process and not particularly user friendly (passkey accounts are tied to a specific passkey and can't have additional ones added, so you need to create a new account if you, say, migrate from one hardware key to another). Hopefully they improve the process before passkey support goes out of beta.

[0] https://tailscale.com/kb/1269/passkeys

New comment by _ks3e in "Blue Origin New Glenn Mission NG-1 – Live"

_ks3e — Mon, 13 Jan 2025 07:10:51 +0000

What’s the function of the tower near the launch pad with a huge orange fire at its top?

New comment by _ks3e in "Active turbulence cancellation makes bumpy flights smoother"

_ks3e — Wed, 13 Dec 2023 05:01:31 +0000

Do you have a feel for how the maneuverability of a B-1 being controlled by the canards compares to that of a typical airliner?

It seems like a system like this would need to respond very quickly to changes in the air mass, and the weight and slow response of an airliner might make this system less feasible unless you could somehow measure airflow a reasonable distance in front of the plane.

New comment by _ks3e in "Cryptographers solve decades-old privacy problem"

_ks3e — Sun, 19 Nov 2023 00:11:55 +0000

Based on my recollection of a conversation with the authors after their STOC talk: the RAM scheme is not efficient enough to be competitive with circuit-based FHE schemes; for problems with low RAM usage, existing circuit-based methods are more efficient, and problems with higher RAM usage are infeasible to run on any FHE method right now.

They were 50/50 on whether or not this technique could be made feasible in the same way that, say, the CKKS scheme is.

New comment by _ks3e in "The 34-year-old airline novice who thinks he's Richard Branson"

_ks3e — Sun, 15 Oct 2023 03:36:03 +0000

A few exist, e.g. https://en.wikipedia.org/wiki/La_Compagnie

New comment by _ks3e in "Pianists for Alternatively Sized Keyboards"

_ks3e — Sun, 22 Nov 2020 05:08:36 +0000

Yes, but it's very uncommon on pianos these days. https://en.wikipedia.org/wiki/Jankó_keyboard

Most button accordions and modern electronic instruments (Linnstrument, Soundplane, Eigenharp) are have chromatic layouts... I wonder if you could hook up one of these devices up to a player piano without too much latency.

New comment by _ks3e in "A Differentiable Programming System to Bridge ML and Scientific Computing"

_ks3e — Fri, 19 Jul 2019 23:50:44 +0000

In terms of trying to break free of dependence on hand optimized kernels: a few people, myself included, have been working on some theoretical approaches to generating cache-efficient rearrangements for neutral net like problems. We've worked it out for convolution like problems [1] and have some upcoming results generalizing these techniques to other problems. Please feel free to email if you'd like to talk.

[1] https://arxiv.org/abs/1802.06905

New comment by _ks3e in "Flying High Unpressurized (2016)"

_ks3e — Fri, 25 Jan 2019 21:22:14 +0000

The author mentions that he would design a system with a continuously monitored pulse oximeter that could trigger the EPS descent mode automatically. Do wrist-mounted versions (fingertip ones would probably be too bulky/uncomfortable for continuous use by someone at the controls) of such continuous oximeters exist at the moment? The Apple Watch apparently has a sensor capable of measuring blood oxygen content, but disabled that functionality for unstated reasons (FDA regs?) [1], and I'm unaware of any extant wrist-worn device with that functionality enabled.

[1] https://9to5mac.com/2015/04/24/apple-watch-blood-oxygen/

Some more information about the physiology of hypoxia can be found here: https://web.archive.org/web/20150318011408/dr-amy.com/rich/o...