Zhuowei Zhang

Mostly bad puns. It's pronounced "joe-way". Happy to explain jokes.
he/him, opinions are my own. https://zhuoweizhang.net

Public Key

npub1cppa6rw8av0n2zjc6yarum7k0nmtkka4d7qas3ndy0sqpjfz9u0sx9e7uy

NIP-05 Address

zhuowei_at_notnow.dev@mostr.pub

Profile Code

nprofile1qqsvqs7aphr7k8e4pfvdzw37dlt8ea4mtw6klqwcgekj8cqqey3z78cr092yr

Author Public Key

npub1cppa6rw8av0n2zjc6yarum7k0nmtkka4d7qas3ndy0sqpjfz9u0sx9e7uy

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Last Notes

2024-11-09 05:43:03

Halo: CE Anniversary (2011) came out closer to the original Halo (2001) than today.
https://mastodon.social/@stroughtonsmith/113439708019143947

2024-10-10 03:54:28

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@npub1395…28lk >3d print and assemble a clone
I hate that "pirate an alarm clock" is now a phrase that makes sense.

2024-10-10 03:33:48

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@npub1395…28lk I'm not smart enough to reverse this, unfortunately - stacksmashing's Game and Watch hacking video (https://www.youtube.com/watch?v=Rsi8p5gbaps) shows that Nintendo actually do lock down their microconroller-based hardware, and that I'd never be able to crack it.
Although I imagine, since Nintendo issues software updates (?!) for their alarm clock (https://en-americas-support.nintendo.com/app/answers/detail/a_id/66379), maybe you can capture one of those?
Hope that - if it's an esp32 running Wi-Fi - that the esp32 would handle HTTPS and send data to the main chip in plaintext?

2024-10-10 03:21:01

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@npub1395…28lk (It's not, alas: https://www.threads.net/@nintendeal/post/DA6bL4xSoi7)

2024-10-10 03:07:48

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the Alarmo clock certainly starts up too fast to be Android/Linux: https://youtu.be/MujPYIxY-8k?t=156
So it is probably some sort of microcontroller.

2024-10-10 03:05:05

What kind of CPU does Nintendo's new "Alarmo" alarm clock use?
On one hand, they didn't post GPL sources, so it might not be Android/Linux:
(https://support.nintendo.com/jp/oss/index.html)
On the other hand, the board teardown shows it has a big chip of what looks like eMMC (https://www.gonintendo.com/contents/41329-nintendo-s-alarmo-hides-a-neat-reference-inside-its-hardware, https://www.threads.net/@nintendeal/post/DA6bL4xSoi7), much bigger than the Game & Watch which used microcontrollers.
So maybe it is using a Linux-class CPU after all?

2024-09-15 07:08:00

Are there any UEFI implementations in production that aren't based on TianoCore EDK2?
There are plenty of experimental implementations, e.g. u-boot's UEFI, but I've never seen u-boot used for UEFI outside of Asahi Linux

2024-09-08 19:18:35

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(I'm reasonably confident I stole this joke, but I can't find any original source when I search "Eiffel 65 Warning", so I'm calling this a remix)

2024-09-08 18:57:47

Eiffel 65 Warning: This product contains chemicals known to the State of California to be blue, da ba dee, da ba di

2024-09-07 19:58:00

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@npub1gq5…yxjq You're assuming you're the customer and not Wall Street investors, whom Amazon wants to sell infinite eternal growth

2024-09-07 05:22:34

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@npub1c98…sq6y I was hoping for a darknet message offering to unlock my Oculus Quest's bootloader for 1 bitcoin

2024-08-14 02:01:19

Google didn't skip Nine

2024-07-26 04:49:07

Me, sobbing: please… you can’t feature T-Pain on the soundtrack of Disney’s Aladdin remake
The German dub: https://youtu.be/ZBW64CZZx8Y?t=75

2024-07-19 17:09:57

"CrowdStrike shuts down computers worldwide"
And you thought there's no collective bargaining in tech

2024-06-11 06:39:08

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RCS on iOS 18 appears to be codenamed "Lazuli". (look at strings - /System/Library/Frameworks/CoreTelephony.framework/Support/CommCenter)

2024-06-08 01:51:54

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"Good morning! Welcome to WWDC 2024. Now, some guy on Mastodon said: "there's nothing platform changing this WWDC". So, to prove him wrong, we're transitioning all Apple Silicon to Risc-V."

2024-06-08 01:48:57

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This WWDC really feels like a dud
- no-one's excited for the same AI that everyone's already used since November 2022, just shoved into more places
- nothing leaked for visionOS - maybe because there's nothing to leak?
- nothing platform changing like Swift/SwiftUI rumoured
Is there anything I should look forward to?

2024-06-08 01:43:09

This is the least excitement I've ever seen for a WWDC.

2024-06-05 08:00:47

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@npub1uqw…upc3 IPv6's first RFC was released in 1995.
In the intervening time, Itanium taped out (1999), launched (2001), and died (2021), yet I still don't have IPv6

2024-06-05 07:46:53

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@npub1uqw…upc3 Yeah, pretty much nobody has IPv6

2024-06-05 07:15:33

IPv6: the Itanium of networking standards

2024-05-24 23:23:31

“Newly discovered ransomware uses BitLocker to encrypt victim data”
… how do viruses use BitLocker when I can’t even use BitLocker on Windows 11 Home without a Microsoft Account?!
https://arstechnica.com/security/2024/05/newly-discovered-ransomware-uses-bitlocker-to-encrypt-victim-data/
https://support.microsoft.com/en-us/windows/turn-on-device-encryption-0c453637-bc88-5f74-5105-741561aae838
https://support.microsoft.com/en-us/windows/device-encryption-in-windows-ad5dcf4b-dbe0-2331-228f-7925c2a3012d

2024-05-24 05:25:39

If anyone here owns a Humane Ai Pin, can you please ask for the kernel/GPL source code?

2024-05-24 05:20:42

Wait, you can reboot the Humane Ai Pin by pressing a reset button... on the wireless charging dock?!
Are they using the Qi charging handshake/in-band signalling channel?
https://old.reddit.com/r/humane/comments/1cc86z5/did_at_two_days/l1496yc/

2024-05-18 01:31:04

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@npub1c98…sq6y This isn't a Marvel movie; this is a Sony Spider-Man movie (which is different from the Sony Spider-Verse animated movies)
... you worked on Android; you know fragmentation

2024-05-17 13:09:15

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@npub1c98…sq6y tldr: it's bad, and not so-bad-it's-good (https://www.rottentomatoes.com/m/madame_web, https://www.theverge.com/24073087/madame-web-review)

2024-05-15 07:43:14

Plan 9 is a great filesystem, lacking only an operating system

2024-05-09 05:43:48

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Puss in Boots: The Last Wish was perfect.
Every joke landed. Every action scene was spectacular. Every emotional beat was sincere.
Well done. I don’t remember the last time I had absolutely zero complaints about a movie.

2024-05-09 03:59:51

Puss in Boots: The Last Wish leaves Netflix today, and it looks really, really good so far, so let’s see if I can finish it before it’s gone…

2024-04-25 04:35:28

How did My Little Pony: Friendship is Magic get away with using the Emergency Broadcast System alert tone in a television show?
Isn’t misusing the tone super illegal?

2024-04-07 05:11:02

Where does this fit on the error handling political compass:
https://twitter.com/mycoliza/status/1776400891983397207

2024-03-14 06:24:23

Strange women posting in BetaArchive distributing DWORDs is no basis for a functioning operating system with AI crap removed

2024-03-13 07:54:33

comfort zone allocator exploitation

2024-03-13 07:12:02

In a stunning new paper uploaded to the preprint server CUPS,

2024-03-13 06:52:02

Me, sobbing: please... you can't save money by not dubbing the songs into Spanish...
The characters: Let's sing in English!
(Yes, this is actual dialog this dub added, just before it launched into an undubbed song.
Very clever. I hate it.)

2024-03-13 05:21:02

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(Context: I’m wondering if I should finally watch It’s a Wonderful Life, or if I should just bank on Shrek Forever After being more recognizable with millennials now that nobody watches TV during the holidays)

2024-03-13 05:16:29

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@npub1xd8…8qee They built a CAN bus daemon and didn't call it systemd-obd?

2024-03-13 05:00:56

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I'd rather live in this dystopia instead of our dystopia, so that we can have Blizzard (an Activision company (a Red Hat company (an IBM company)))

2024-03-13 04:59:02

Systemd acquires Activision and releases systemd-cod

2024-03-13 04:43:44

I wonder if any adaptation of "It's a Wonderful Life" is now more iconic than the original.
(I personally haven't seen the original film, but have watched at least 3 shows/films that reference the plot. But I doubt anything could beat the original film in recognizability, which is shown on all TV stations every holiday season)

2024-03-13 01:10:47

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@npub100z…y7hr binary-in

2024-03-11 02:32:49

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This joke only works if you follow Binaryen's official pronunciation guide
("pronounced in the same manner as "Targaryen"", according to the README: https://github.com/WebAssembly/binaryen?tab=readme-ov-file#faq)

2024-03-11 02:06:45

Who called it WasmCon and not a webinar-yen

2024-03-11 02:01:58

Zoomtopia, the enterprise VTuber convention
(No, really, Zoom (the app) had a convention: https://zoomtopia.com)

2024-03-04 07:31:23

I wonder why we don't see more blended 2D + 3D animation like the style used in _My Little Pony: The Movie_. It looks real nice!
Is it just prohibitively expensive? I know Futurama also extensively mixes 2D hand-drawn animation and 3D CGI, and they're doing it for a TV show...
(Futurama also got cancelled like 3 times and counting, so... hmm...)

2024-02-17 21:57:01

Vision Pro’s real “killer app” is playing videos privately, without anyone nearby knowing you’re watching My Little Pony: Friendship is Magic

2024-02-05 05:05:23

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@npub1g6x…4rvz @npub14ly…a6kq Do you need some way to control it? I can enable Alvr's hand tracking if needed.

2024-02-05 04:54:57

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@npub1g6x…4rvz @npub14ly…a6kq I'm not actually yoloing the same texture to both eyes... at least, it's not supposed to...
The code to switch between left and right eye texture is https://github.com/zhuowei/VisionOSALVRClient/blob/34384e1e3d7d644dc473e2cf2a7bb5465c33f794/ALVRClient/Shaders.metal#L137 (based on https://github.com/alvr-org/ALVR/blob/ab4f57cec719849f60b7af4c9c8974566a5bf1b9/alvr/client_core/cpp/graphics.cpp#L180)
I think the Metal capture/shader debugger can inspect the vertex shader input/output. I don't have access to layered rendering on Simulator, unfortunately. What do you get as the uv coordinates for the left and right eyes when you do a frame capture in Xcode?
Also, you probably want to disable foveated encoding - haven't had a chance to implement it yet.
https://notnow.dev/media/585a4719-c5ab-4e69-8ddf-275585fac1d1/Screenshot%202024-02-04%20at%2011.52.50%E2%80%AFPM.png
https://notnow.dev/media/95bd3592-ab60-4efd-8c98-30ec8fb74181/Screenshot%202024-02-04%20at%2011.53.23%E2%80%AFPM.png

2024-02-05 04:44:43

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@npub1g6x…4rvz @npub14ly…a6kq
forcing software encoding on the server fixed it
Probably because my crappy NAL parser is broken: it’s possible to have NALs beginning with either 00 00 00 01 or just 00 00 01. On software encoding, the setup packets always use 00 00 00 01, and the rest always use 00 00 01, so I didn’t bother handling the other cases.
https://github.com/zhuowei/VisionOSALVRClient/blob/34384e1e3d7d644dc473e2cf2a7bb5465c33f794/ALVRClient/ALVRClientApp.swift#L99
Fix is probably simple (check the first 4 bytes to see if they’re 00 00 00 01 or 00 00 01 xx; see NalParsing.cpp in Alvr). Do you happen to have a video capture from Nvenc (Alvr->Debug->Start Recording)?
though it appears to be rendering the same texture for both eyes
ugh, sigh. I’ll take a look. Is it showing the same eye on the video recording as well?

2024-02-05 04:23:54

@npub1g6x…4rvz @npub14ly…a6kq I pushed what I currently have to Github.
Build instructions:
You’ll need ALVR main branch (I’m on a7cbf476f4975c27d3bf001ce4f358ae6cc4d6ae) built with
```
cargo build --target=aarch64-apple-ios -p alvr_client_core
cbindgen alvr/client_core/
```
and then `repack_alvr_client.sh`
If you need the ALVR side prebuilt, https://drive.google.com/file/d/11AtXEwFdTOQFBcXFd4XdMV2rEK8ESAZ5/view?usp=sharing
I've only tested this on the visionOS Simulator: I have no idea if it'd even run on a physical device.

2024-02-03 04:25:55

Wait, mystery girl running out of the Royal Ball as the clock struck midnight! You forgot your...
Apple Vision Pro 1TB, Solo Knit Band - XS, Dual Loop Band - XS, Light Seal - 11N,
Zeiss Optical Inserts - Prescription, Sphere=-11.0D, Cylinder=-2.00

2024-01-30 01:16:40

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@npub1g6x…4rvz Worst case scenario, I software decode it via ffmpeg (the M1 is fast enough to software encode it when I was streaming visionOS Simulator to ALVR, surely it can decode it).
Although my understanding is that ALVR sends the first NAL with enough info to initialize the decoder on its own. (ALVR has a dump video function on the PC side, so if you can decode that, you can decode the frames)
I assume you’d use cp_drawable_set_device_anchor to set the matching pose for visionOS’s asynchronous reprojection?

2024-01-29 15:40:13

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@npub1g6x…4rvz I got as far as calling those ALVR functions in an iOS app, but haven't gotten around to hooking it up to video decoder/rendering/ARKit yet.

2024-01-29 05:14:37

I was hoping someone would port a PC VR -> Vision Pro streaming app this weekend, but nobody did.
One of you needs to pull an all-nighter in the next 3 days...

2024-01-19 16:12:15

Based on the preorder screenshots I've seen plastered across my timeline, the Apple Vision Pro will be owned exclusively by developers building apps for each other