dcliu

Re:DaVinci Resolve releases Photo Editor on Monday April 13, 2026 @11:14PM (#47760821)

DaVinci Resolve has been an incredible value. Hoping this becomes a viable contender vs Capture One and Lightroom.

Re:Show HN: Cerno – CAPTCHA that targets LLM reasoning, not human biology on Tuesday March 31, 2026 @04:10PM (#47592789)

Interesting idea but it didn't accept me the first 3-4 times I tried to draw the path on laptop trackpad - going slow led to it failing before I was finished, going fast led to messy paths that were rejected as well. Could something like this work for users with different levels of dexterity?

Re:E2E encrypted messaging on Instagram will no longer be supported af... on Friday March 13, 2026 @10:07AM (#47364667)

On the other hand Messenger has moved to only supporting e2ee chats, wonder why the difference.

Re:The trackball that merges pointing and 3D control on Sunday March 08, 2026 @12:38PM (#47298684)

Creator here - yes, it's a mod of a Kensington SlimBlade Pro, mentioned on the site. Rotatrix is the hardware mod (added controller), firmware, and software stack that extracts 3DOF rotation and integrates into CAD and other apps. It's possible with firmware, but you need a trackball with dual optical sensors to do this (which very few have), and the system is patent pending. More on the architecture in the earlier Show HN: https://news.ycombinator.com/item?id=46990422

Thanks for taking a look.

Show HN: Rotatrix – Trackball mod capturing full 3-axis rotation for 3D control

Posted by dcliu on Thursday February 12, 2026 @10:59AM
from the show-hn dept.

https://rotatrix.com/

Hi HN - I've been on creative sabbatical building hardware and software projects, and this is one of them.Rotatrix is a hardware mod of the Kensington SlimBlade Pro trackball that reads out full 3-axis ball rotation (XY plus twist) and maps it to continuous 3D control. The original device only used twist for discrete scroll gestures, which is a whole degree of freedom that can be put to more...

( Read More... | no comments | on HN )

Re:Open Source Implementation of Apple's Private Compute Cloud on Thursday November 06, 2025 @03:22PM (#45839930)

That's a strong claim for not looking into it at all.

From a brief glance at the white paper it looks like they are using TEE, which would mean that the root of trust is the hardware chip vendor (e.g. Intel). Then, it is possible for confidentiality guarantees to work if you can trust the vendor of the software that is running. That's the whole purpose of TEE.

Re:FTC takes action against Uber for deceptive billing and cancellatio... on Monday April 21, 2025 @06:46PM (#43757335)

Glad to see this happen. As described in the article, I recently got signed up and charged for Uber One, despite having opened the app in weeks.

Re:Twilio is firing 17% of workforce on Monday February 13, 2023 @02:22PM (#34778819)

I am just learning about too, but I think the explanation goes something like this: Because the risk-free rate of return is now much higher, the net present value of the estimated future cash returns from that investment has gone down. Another way to look at it, earning a dollar today is now worth much more than earning a dollar in five years.

Just how much has it increased? If we use the 3-month Treasury bill rate as the risk-free return, it has gone from 0.05% to 4.64%. A dollar in five years used to be worth (1 / 1.0005^5) and now it is only worth (1 / 1.0464^5). That's a drop of 25%, definitely significant enough to make some speculative and longer-term investments no longer pencil out.