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AI poster wins Ohio State Fair contest

https://www.ohiostatefair.com/p/get-involved/arts/poster-contest
54•AlexAplin•1h ago•27 comments

Karpathy’s Pelican

https://twitter.com/karpathy/status/2083749667410727319
400•delichon•19h ago•313 comments

Autoregressive Language Model on the 6502 Processor

https://mattbeton.com/blog/bitnet-6502.html
29•nmstoker•2d ago•5 comments

Show HN: Shitty – fast terminal. Memory-unsafe and faster than yours

https://github.com/pg83/shitty
18•pshirshov•48m ago•1 comments

Note-Taking and Personal Knowledge Management

https://unattributed.cc/note-taking-and-personal-knowledge-management
106•surprisetalk•5d ago•28 comments

Show HN: Kakehashi – Experimental userspace to run macOS binaries on Linux ARM

https://github.com/wie-project/kakehashi
158•vlad_kalinkin•7h ago•34 comments

Read the Novels and Forget Everything Else

https://hedgehogreview.com/web-features/thr/posts/read-the-novels-and-forget-everything-else
32•samclemens•2d ago•8 comments

Developers are attached to tools because tools encode trust

https://stackoverflow.blog/2026/07/29/developers-are-attached-to-tools-because-tools-encode-trust/
127•HieronymusBosch•4d ago•61 comments

Sharing an X11 Server Across Hosts with FamilyWild

https://dobrowolski.dev/article/sharing-an-x-server-across-hosts-with-familywild/
26•shirozuki•3h ago•8 comments

The Computational Theory of Mind (2015)

https://plato.stanford.edu/entries/computational-mind/
6•cyanregiment•1h ago•1 comments

Show HN: NixOS-DGX-Spark – Nix and NixOS on the DGX Spark

https://github.com/graham33/nixos-dgx-spark
86•graham33•6h ago•24 comments

Show HN: Make your Framework 12 sound like a creaky door

https://github.com/ArcaEge/creakwork12
37•arcaege•3h ago•3 comments

Show HN: Mu – Tools for Agents

https://github.com/micro/mu
7•asim•1h ago•0 comments

Californians' data deletion requests, DROP, become enforceable Aug. 1

https://www.nbcsandiego.com/nbc-7-responds-2/californians-data-deletion-requests-drop-become-enfo...
46•MilnerRoute•1h ago•11 comments

TinyNES Review – A Super Niche NES Console

https://blog.lon.tv/2023/02/05/tinynes-review-a-super-niche-nes-console/
22•throwoutway•3h ago•1 comments

Twenty Years of RISC OS Open

https://www.riscosopen.org/news/articles/2026/06/20/twenty-years-of-risc-os-open
148•AlexeyBrin•11h ago•27 comments

F*: A general-purpose proof-oriented programming language

https://fstar-lang.org/
145•ducktective•11h ago•64 comments

'Crush this lady': how eBay harassment campaign led to $56M payout

https://www.ft.com/content/06ec1b03-d4af-40cf-b12a-4ba5a410f6d2
150•JumpCrisscross•4h ago•68 comments

The Myth of Snow Leopard

https://www.rubenerd.au/the-myth-of-snow-leopard/
32•speckx•5h ago•31 comments

When transit passes were designed by hand (2022)

https://letterformarchive.org/news/milwaukee-transit-passes/
92•nate•2d ago•27 comments

Rooting, firmware analysis and persistent credentials of TP-Link TL-841N

https://blog.juni-mp4.com/posts/42/rooting-the-tplink-tl841n-pt1/
76•mindracer•7h ago•14 comments

Schmitt Trigger: Robust Comparator Design with Hysteresis

https://www.wevolver.com/article/schmitt-trigger-robust-comparator-design-with-hysteresis
15•ankitg12•3d ago•8 comments

Meshdiff – visually compare two STL versions in the browser, client-side

https://meshdiff.com/
171•projscope•12h ago•17 comments

Fasttracker II clone in C using SDL 2

https://16-bits.org/ft2.php
114•andsoitis•4d ago•40 comments

A tool for finding the causes of unstable Python tests

https://github.com/mgaitan/pytest-leak-finder
3•pomponchik•3d ago•0 comments

Folding Paper Globes

https://foldingglobes.com/globes
138•dango2506•4d ago•29 comments

Harvesting SSH Credentials: Insights from My Honeypot Network

https://uphillsecurity.com/articles/harvesting-ssh-credentials-insights-from-my-honeypot-network/
33•whatbackup•6h ago•25 comments

My personal AI benchmark: "Generate an SVG of a frog with a Habsburg jaw."

https://frogs.vaguespac.es/
83•thebigship•4h ago•41 comments

EU Age Verification Project Mandates Hardware-Bound Attestation

https://linuxiac.com/eu-age-verification-project-mandates-hardware-bound-attestation/
104•RobotToaster•3h ago•60 comments

Great Question (YC W21) Is Hiring Senior Demand Gen Manager

https://www.ycombinator.com/companies/great-question/jobs/YutDxyf-senior-demand-generation-manager
1•nedwin•11h ago
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