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Real-time map of Great Britain's rail network

https://www.map.signalbox.io
170•scrlk•2h ago•68 comments

Road to Elm 1.0

https://elm-lang.org/news/faster-builds
22•wolfadex•44m ago•1 comments

How the U.S. Engineered Its Sovereignty

https://spectrum.ieee.org/us-engineered-sovereignty
23•rbanffy•1h ago•5 comments

Kill the Plastic AI Portrait

https://realistic-shot-deploy-eight.vercel.app/
3•withoutshape•11m ago•1 comments

GPT-5.6 Sol Ultra will be in Codex

https://twitter.com/thsottiaux/status/2073933490513752151
328•mfiguiere•11h ago•275 comments

Introduction to Genomics for Engineers

https://learngenomics.dev/docs/biological-foundations/cells-genomes-dna-chromosomes/
74•yreg•4d ago•5 comments

Has_not_been_viewed_much

https://iamwillwang.com/notes/has-not-been-viewed-much/
358•wxw•12h ago•94 comments

The Complete Homemade Juggling Beanbag Guide

https://www.joshuaclifton.com/juggle/
15•mrauha•4d ago•3 comments

Building relationships with customers through support didn't turn out as hoped

https://www.uncommonapps.nyc/p/castro-podcasts-things-i-got-wrong-support
196•dabluck•10h ago•118 comments

It's not about physical vs. digital games, it's about ownership

https://popcar.bearblog.dev/its-about-ownership/
573•popcar2•21h ago•434 comments

C programmers commit fresh crimes against readability

https://www.theregister.com/offbeat/2026/07/05/c-programmers-commit-fresh-crimes-against-readabil...
19•Bender•47m ago•0 comments

OpenPrinter

https://www.opentools.studio/
947•bouh•15h ago•233 comments

Behind the scenes with the Midjourney scanner [video]

https://www.youtube.com/watch?v=4nzzpUKhj1M
45•Semkas•2d ago•28 comments

My quest to see all of Tetris

https://antithesis.com/blog/2026/tetris-quest/
27•wwilson•3d ago•6 comments

Show HN: Homegames. An open-source game platform I've been making for 8 years

https://homegames.io
191•homegamesjoseph•14h ago•48 comments

Does code cleanliness affect coding agents? A controlled minimal-pair study

https://arxiv.org/abs/2605.20049
154•softwaredoug•13h ago•79 comments

Show HN: Paint the Earth on a live, interactive globe (collaborative art.)

https://earth.tattoo
8•earth-tattoo•2h ago•2 comments

Generate parametric, manufacturable 3D models in seconds

https://kyrall.com/
48•OsamaAtwi•5h ago•38 comments

Zuckerberg says AI agent development going slower than expected

https://www.reuters.com/business/zuckerberg-says-ai-agent-development-going-slower-than-expected-...
271•cwwc•3d ago•462 comments

Starring the Computer

https://www.starringthecomputer.com/computers.html
250•gitowiec•18h ago•55 comments

X402, a static blog monetization excercise

https://shtein.me/posts/x402-poc/
5•morty28•1h ago•1 comments

Completing a computer science degree on Coursera

https://notesbylex.com/completing-a-computer-science-degree-on-coursera
229•lexandstuff•15h ago•144 comments

The future of Flipper Zero development

https://blog.flipper.net/future-of-flipper-zero-development/
359•croes•18h ago•152 comments

"Software Engineering" Is Not Engineering

https://web.archive.org/web/20050615235108/http://www.geocities.com/tablizer/science.htm
16•abrbhat•49m ago•11 comments

Organic Maps

https://organicmaps.app/
1059•tosh•22h ago•326 comments

Mr. Baby Paint and accidentally discovering a new cellular automata

https://tekstien-marginaalien-keskus.aalto.fi/residenssi/heikki/blog/004-december-2/
193•jfil•3d ago•40 comments

The Age of Personalized Hardware Is Coming

https://geastack.com/blog-the-age-of-personalized-hardware-is-coming
82•arbayi•4d ago•62 comments

New AI tutor achieves 0.71-1.30 SD effect size in Dartmouth course [pdf]

https://intextbooks.science.uu.nl/workshop2026/files/itb26_s1s2.pdf
168•jonahbard•17h ago•105 comments

The Private Capture of Public Genius

https://www.wysr.xyz/p/the-private-capture-of-public-genius
124•martialg•12h ago•72 comments

Delta flight hit by firework while landing at Midway Airport on Fourth of July

https://www.nbcchicago.com/news/local/delta-flight-hit-by-firework-while-landing-at-midway-airpor...
138•randycupertino•17h ago•263 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