frontpage.
newsnewestaskshowjobs

Made with ♥ by @iamnishanth

Open Source @Github

fp.

Open in hackernews

You can now directly sync Postgres with Redis

https://github.com/redfly-ai-org/redfly.ai
22•vijaymohan1979•10mo ago

Comments

yohannparis•10mo ago
No Pricing information nor an open-source project. I don't know what to do with this product.
jasonlotito•10mo 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•10mo 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•9mo ago
https://github.com/redfly-ai-org/redfly.ai/wiki/Q-&-A
maxmcd•10mo 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•10mo ago
There’s also Polyscale as a service.
vijaymohan1979•9mo ago
https://github.com/redfly-ai-org/redfly.ai/wiki/Q-&-A
vijaymohan1979•9mo ago
https://github.com/redfly-ai-org/redfly.ai/wiki/Q-&-A
henning•10mo 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•10mo ago
> Yes, I realize the source is there

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

vijaymohan1979•9mo ago
https://github.com/redfly-ai-org/redfly.ai/wiki/Q-&-A
hangonhn•10mo 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•10mo 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•9mo ago
https://github.com/redfly-ai-org/redfly.ai/wiki/Q-&-A
solatic•10mo 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•10mo 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•9mo ago
https://github.com/redfly-ai-org/redfly.ai/wiki/Q-&-A

I'm reluctant to verify my identity or age for any online services

https://neilzone.co.uk/2026/03/im-struggling-to-think-of-any-online-services-for-which-id-be-will...
368•speckx•2h ago•201 comments

Physics Girl: Super-Kamiokande – Imaging the sun by detecting neutrinos [video]

https://www.youtube.com/watch?v=B3m3AMRlYfc
80•pcdavid•2h ago•11 comments

India's top court angry after junior judge cites fake AI-generated orders

https://www.bbc.com/news/articles/c178zzw780xo
278•tchalla•4h ago•133 comments

The Xkcd thing, now interactive

https://editor.p5js.org/isohedral/full/vJa5RiZWs
766•memalign•6h ago•93 comments

Claude's Cycles: Claude Opus 4.6 solves a problem posed by Don Knuth [pdf]

https://www-cs-faculty.stanford.edu/~knuth/papers/claude-cycles.pdf
187•fs123•6h ago•92 comments

Meta’s AI smart glasses and data privacy concerns

https://www.svd.se/a/K8nrV4/metas-ai-smart-glasses-and-data-privacy-concerns-workers-say-we-see-e...
1289•sandbach•18h ago•728 comments

Pass-Through of Tariffs: Evidence from European Wine Imports

https://www.nber.org/202603/digest/pass-through-tariffs-evidence-european-wine-imports
7•neehao•11m ago•1 comments

Apple Introduces MacBook Pro with All‑New M5 Pro and M5 Max

https://www.apple.com/newsroom/2026/03/apple-introduces-macbook-pro-with-all-new-m5-pro-and-m5-max/
340•scrlk•2h ago•350 comments

Don't Become an Engineering Manager

https://newsletter.manager.dev/p/dont-become-an-engineering-manager
90•flail•2h ago•64 comments

British Columbia is permanently adopting daylight time

https://www.cbc.ca/news/canada/british-columbia/b-c-adopting-year-round-daylight-time-9.7111657
1040•ireflect•20h ago•504 comments

Arm's Cortex X925: Reaching Desktop Performance

https://chipsandcheese.com/p/arms-cortex-x925-reaching-desktop
195•ingve•9h ago•103 comments

Points on a ring: An interactive walkthrough of a popular math problem

https://growingswe.com/blog/points-on-ring
13•evakhoury•23h ago•0 comments

I'm losing the SEO battle for my own open source project

https://twitter.com/Gavriel_Cohen/status/2028821432759717930
230•devinitely•3h ago•106 comments

Launch HN: Cekura (YC F24) – Testing and monitoring for voice and chat AI agents

16•atarus•2h ago•5 comments

Ars Technica fires reporter after AI controversy involving fabricated quotes

https://futurism.com/artificial-intelligence/ars-technica-fires-reporter-ai-quotes
499•danso•15h ago•303 comments

The Internet's Top Tech Publications Lost 58% of Their Google Traffic Since 2024

https://growtika.com/blog/tech-media-collapse
113•Growtika•3h ago•80 comments

Disable Your SSH access accidentally with scp

https://sny.sh/hypha/blog/scp
16•zdw•3d ago•3 comments

Simple screw counter

https://mitxela.com/projects/screwcounter
226•jk_tech•2d ago•62 comments

Why No AI Games?

https://franklantz.substack.com/p/why-no-ai-games
27•pavel_lishin•1h ago•7 comments

Computer Says No

https://koenvangilst.nl/lab/computer-says-no
58•vnglst•2d ago•27 comments

We Built a Video Rendering Engine by Lying to the Browser About What Time It Is

https://blog.replit.com/browsers-dont-want-to-be-cameras
132•darshkpatel•2d ago•50 comments

Apple unveils new Studio Display and all-new Studio Display XDR

https://www.apple.com/newsroom/2026/03/apple-unveils-new-studio-display-and-all-new-studio-displa...
121•victorbjorklund•2h ago•102 comments

Show HN: I built a sub-500ms latency voice agent from scratch

https://www.ntik.me/posts/voice-agent
512•nicktikhonov•19h ago•150 comments

Apple introduces the new MacBook Air with M5

https://www.apple.com/newsroom/2026/03/apple-introduces-the-new-macbook-air-with-m5/
137•Garbage•2h ago•105 comments

C64: Putting Sprite Multiplexing to Work

https://bumbershootsoft.wordpress.com/2026/02/28/c64-putting-sprite-multiplexing-to-work/
45•ibobev•1d ago•2 comments

History of the Graphical User Interface: The Rise (and Fall?) Of WIMP Design

https://www.uxtigers.com/post/gui-history
26•todsacerdoti•3d ago•12 comments

Mullvad VPN: Banned TV Ad in the Streets of London [video]

https://www.youtube.com/watch?v=rwhznrpgl7k
223•vanyauhalin•4h ago•124 comments

Florida public universities to pause hiring new H-1B workers

https://www.wusf.org/education/2026-03-03/hiring-h1b-workers-florida-public-universities-pause-en...
44•rawgabbit•2h ago•27 comments

I built a pint-sized Macintosh

https://www.jeffgeerling.com/blog/2026/pint-sized-macintosh-pico-micro-mac/
79•ingve•9h ago•19 comments

Show HN: React-Kino – Cinematic scroll storytelling for React (1KB core)

https://github.com/btahir/react-kino
12•bilater•2d ago•0 comments