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Distributed Systems Classics

https://nvartolomei.com/dist-sys-classics/
53•grep_it•1h ago•7 comments

Notes on gotchas while migrating 35kb preprompts from Opus to self-hosted Ollama

https://patrickmccanna.net/notes-on-migrating-large-prompts-away-from-anthropic-openai-to-self-ho...
80•0o_MrPatrick_o0•3h ago•31 comments

Principles for Fast Tokio Applications

https://dial9-rs.github.io/blog/principles-for-fast-tokio-applications/
43•carllerche•1h ago•9 comments

Why don't machine learning research agents overfit?

https://www.amazon.science/blog/why-dont-machine-learning-research-agents-overfit
16•Betelbuddy•51m ago•2 comments

Show HN: Neobrutalism.dev – Just added Base UI support and added new color theme

https://www.neobrutalism.dev/
25•samke-•1h ago•8 comments

Adversarial Fashion Makes a Statement on AI Panopticon

https://spectrum.ieee.org/adversarial-fashion
40•rbanffy•3h ago•20 comments

Cua (YC P25) Is Hiring a Founding Technical GTM Lead

https://www.ycombinator.com/companies/cua/jobs/1IWEKVH-founding-technical-gtm-lead
1•frabonacci•22m ago

A Beginning for Mathematics

https://www.daniellitt.com/blog/2026/9/13/a-beginning-for-mathematics/
17•robinhouston•1h ago•0 comments

Show HN: Fly.exe – An EON systems like virtual fruit fly uploaded to computer

https://github.com/Ibtisam-Mohammad/Fly.exe
11•Ibti_sam•1h ago•1 comments

When LLM judges agree, should we believe them?

https://www.amazon.science/blog/when-llm-judges-agree-should-we-believe-them
11•Betelbuddy•53m ago•2 comments

XCancel service is suspended until further notice

https://xcancel.com/#
126•gaganyaan•7h ago•387 comments

Claude is a Contrarian

https://medium.com/@rdsubhas/claude-is-a-contrarian-dbce4de5cada
57•rdsubhas•1h ago•57 comments

The Tudor Kings

https://analog-antiquarian.net/2026/09/11/the-tudor-kings/
8•ibobev•1h ago•1 comments

Show HN: Is this photo edited? Client-side image forensics

https://vajba.com/image-forensics/
9•trivsamt•4d ago•0 comments

An atlas of periodic solutions to the three-body problem

https://www.threebodyorbits.com/
237•danielmorozoff•2d ago•52 comments

Show HN: Pelican-bicycle alternatives

https://gally.net/temp/20260914pelican-alternatives/index.html
57•tkgally•4h ago•23 comments

It's a Scam

https://nice-marmot.net/Archives/2026/September_2026.html#note_3792
3•speckx•18m ago•0 comments

EuroBirdPortal – Live bird movements across Europe

https://www.eurobirdportal.org/ebp/en/
190•NKosmatos•8h ago•52 comments

A 386 PC for Your RP2350

https://github.com/rh1tech/frank-386
170•SamuraiLion•8h ago•51 comments

Trying to Make a Loop Auto-Vectorize

https://jsgroth.dev/blog/posts/trying-to-make-a-loop-auto-vectorize/
27•zdw•4d ago•10 comments

I stress-tested Meta Muse until its agent control plane started timing out

https://blog.cygankiewicz.com/en/meta-muse-black-box-testing/
7•mpkc•57m ago•4 comments

Hacking AI customer service agents

https://www.intigriti.com/researchers/blog/hacking-tools/hacking-ai-customer-service-agents
29•snikolaev•57m ago•2 comments

Devil's Arrows: Ancient builders hauled 55k-lb stones 11 miles for UK stone row

https://www.sciencedaily.com/releases/2026/09/260909005152.htm
41•bookofjoe•3d ago•29 comments

Transitions.dev: UI transitions for AI agents

https://transitions.dev/
10•eustoria•2h ago•2 comments

How to write an effective software design document

https://refactoringenglish.com/excerpts/write-an-effective-design-doc/
236•fagnerbrack•4h ago•101 comments

Microsoft patches Windows and Excel – breaks audio, remote access, and paste

https://www.theregister.com/os-platforms/2026/09/14/microsoft-patches-windows-and-excel-breaks-au...
32•Alephinitesimal•1h ago•18 comments

Fitting Neural Textures and PBR Material Maps with ES (No Backprop)

http://richg42.blogspot.com/2026/09/fitting-neural-texture-and-pbr-material.html
4•ibobev•48m ago•0 comments

Truncated SVD

https://brashandplucky.com/2023/09/09/truncated-svd.html
6•ibobev•1h ago•1 comments

OpenAI bots knew about the RubyGems caching vulnerability

https://tenderlovemaking.com/2026/09/11/what-a-time-to-be-alive/
147•gregnavis•4h ago•182 comments

Show HN: Kinesis – Control your Mac with the Meta Neural Band

https://github.com/callbacked/kinesis
99•callbacked•5h ago•30 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