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•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

Project Hail Mary – Stellar Navigation Chart

https://valhovey.github.io/gaia-mary/
575•speleo•9h ago•133 comments

Using Kagi Search with Low Vision

https://veroniiiica.com/using-kagi-search-with-low-vision/
131•speckx•6h ago•21 comments

Blog ran on Ubuntu 16.04 for 10 years. I migrated it to FreeBSD

https://crocidb.com/post/this-blog-ran-on-ubuntu-16-04-for-10-years-i-migrated-it-to-freebsd/
166•speckx•7h ago•90 comments

The Death of the Brick and Mortar Toy Store

https://brainbaking.com/post/2026/05/the-death-of-the-brick-and-mortar-toy-store/
14•speckx•2d ago•5 comments

Was my $48K GPU server worth it?

https://rosmine.ai/2026/05/13/was-my-48k-gpu-worth-it/
285•apwheele•3d ago•212 comments

The IBM-ification of Google?

https://zeroshot.bearblog.dev/google-is-shattering-under-its-own-weight-the-ibm-ification-of-google/
64•sabatonfan•2h ago•60 comments

Show HN: Freenet, a peer-to-peer platform for decentralized apps

https://freenet.org/
194•sanity•11h ago•101 comments

Indexing a year of video locally on a 2021 MacBook with Gemma4-31B (50GB swap)

https://blog.simbastack.com/indexed-a-year-of-video-locally/
291•asenna•11h ago•91 comments

Mycorrhizal Fungi, Nature's Key to Plant Survival and Success

https://pacifichorticulture.org/articles/mycorrhizal-fungi-natures-key-to-plant-survival-and-succ...
35•mooreds•1d ago•4 comments

Python 3.15: features that didn't make the headlines

https://blog.changs.co.uk/python-315-features-that-didnt-make-the-headlines.html
331•rbanffy•14h ago•159 comments

Spotify will start reserving concert tickets for fans

https://www.hollywoodreporter.com/music/music-industry-news/spotify-will-start-reserving-concert-...
106•elffjs•9h ago•204 comments

The memory shortage is causing a repricing of consumer electronics

https://davidoks.blog/p/ai-is-killing-the-cheap-smartphone
97•d0ks•4h ago•67 comments

Launch HN: Runtime (YC P26) – Sandboxed coding agents for everyone on a team

https://www.runtm.com/
67•gustrigos•9h ago•20 comments

Flipper One – we need your help

https://blog.flipper.net/flipper-one-we-need-your-help/
1047•sandebert•14h ago•417 comments

Lost Images from the 1945 Trinity Nuclear Test Restored

https://spectrum.ieee.org/trinity-nuclear-test
286•pseudolus•14h ago•94 comments

Seattle Shield, an intelligence-sharing network operated by the Seattle police

https://prismreports.org/2026/05/20/seattle-shield-private-companies-surveillance/
415•root-parent•8h ago•168 comments

Waymo pauses Atlanta service as its robotaxis keep driving into floods

https://techcrunch.com/2026/05/21/waymo-pauses-atlanta-service-as-its-robotaxis-keep-driving-into...
253•mattas•9h ago•319 comments

Uv is fantastic, but its package management UX is a mess

https://www.loopwerk.io/articles/2026/uv-ux-mess/
71•nchagnet•5h ago•50 comments

BBEdit 16

https://www.barebones.com/products/bbedit/bbedit16.html
268•qaz_plm•7h ago•83 comments

Google's Antigravity bait and switch

https://www.0xsid.com/blog/antigravity-bait-n-switch
538•ssiddharth•12h ago•267 comments

News outlets are limiting the Internet Archive’s access to their journalism

https://www.niemanlab.org/2026/05/more-than-340-local-news-outlets-are-limiting-the-internet-arch...
216•jaredwiener•8h ago•80 comments

Vivaldi 8.0

https://vivaldi.com/blog/vivaldi-on-desktop-8-0/
349•OuterVale•18h ago•231 comments

Mounting git commits as folders with NFS (2023)

https://jvns.ca/blog/2023/12/04/mounting-git-commits-as-folders-with-nfs/
92•pvtmert•2d ago•44 comments

ParadeDB (YC S23) Is Hiring Distributed Systems/Platform Engineers

1•philippemnoel•8h ago

Multi-Stream LLMs: new paper on parallelizing/separating prompts, thinking, I/O

https://arxiv.org/abs/2605.12460
57•atomicthumbs•6h ago•5 comments

Throwing AI-generated walls of text into conversations

https://noslopgrenade.com/
501•napolux•16h ago•301 comments

We're testing new ad formats in Search and expanding our Direct Offers pilot

https://blog.google/products/ads-commerce/google-marketing-live-search-ads/
565•sofumel•16h ago•518 comments

Where are all the UK red telephone kiosks?

https://www.thek6project.co.uk/
70•Kaibeezy•7h ago•45 comments

Show HN: Agent.email – sign up via curl, claim with a human OTP

60•adisingh13•9h ago•65 comments

Who wins and who loses in prediction markets? Evidence from Polymarket

https://papers.ssrn.com/sol3/papers.cfm?abstract_id=6443103
133•vcf•13h ago•132 comments