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Open Source @Github

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My server is a phone now

https://seg6.space/posts/phone-server/
156•seg6•4h ago•62 comments

Os8088: A powerful Mac-like OS for the IBM XT, 286, 386

https://os8088.com/
78•jggonz•4h ago•28 comments

Improving Heuristics for A* Pathfinding

https://www.redblobgames.com/pathfinding/heuristics/differential.html
109•bobbiechen•1w ago•12 comments

The phone book that led us to Assad's spy chief in hiding

https://www.bbc.com/news/articles/c4gyrzn8p94o
25•cwwc•1h ago•5 comments

Fastmail offers EU data region

https://www.fastmail.com/blog/fastmail-offers-eu-data-region/
334•groomlake•11h ago•168 comments

Shopify replaced Redis with MySQL for inventory reservations–and it scaled

https://shopify.engineering/scaling-inventory-reservations
76•adletbalzhanov•5h ago•37 comments

Dithered QR Codes

https://www.andrewt.net/dithered-qr-codes/wtf/
56•jmusall•4h ago•11 comments

_for-sale DNS records

https://specification.website/spec/foundations/for-sale-dns/
364•shaunpud•14h ago•134 comments

Open-source interactive map for the Aug 12 total solar eclipse

https://eclipsefan.org/?v=2&t=max&layers=eclipse%2Cbesselian%2Cumbra-live%2Cshadow-3d%2Ccloud-pro...
99•MarcoDewey•8h ago•20 comments

Making difficulty curves in games

http://www.davetech.co.uk/difficultycurves
73•hakkikonu•3d ago•26 comments

Unexpected events and prosocial behavior: the Batman effect

https://www.nature.com/articles/s44184-025-00171-5
14•davidbarker•6d ago•0 comments

The Sound and Music of 'Hyper Light Drifter' [video]

https://gdcvault.com/play/1024135/The-Sound-and-Music-of
31•hyperific•3d ago•4 comments

Timeline of the OpenAI accidental attack against Hugging Face

https://simonwillison.net/2026/Aug/7/openai-timeline/
361•882542F3884314B•16h ago•359 comments

Triton: DirectX 11 Driver for QEMU

https://blog.getutm.app/2026/introducing-triton-directx-11-driver-for-qemu/
146•electricant•14h ago•27 comments

TheoremDB · A public workspace for machine mathematics

https://theoremdb.org/
7•frozenseven•2h ago•0 comments

US Military's cyber command unit grapples with cluster of deaths by suicide

https://www.bloomberg.com/news/articles/2026-08-06/us-military-s-cyber-command-unit-grapples-with...
262•rbanffy•17h ago•412 comments

Can Intel finally beat ARM on performance per Watt?

https://hackaday.com/2026/08/08/want-energy-efficiency-dude-youre-getting-a-dell/
175•gumby•11h ago•128 comments

Building a local positioning system to track runners using Ultra-Wideband

https://zeus.ugent.be/blog/25-26/12urenloop-uwb/
51•robinpdev•1w ago•3 comments

Preventing Misfolding by Preventing Folding

https://www.science.org/content/blog-post/preventing-misfolding-preventing-folding
49•surprisetalk•4d ago•3 comments

DDisasm: Reversible (bi-directional) Disassembler

https://github.com/GrammaTech/ddisasm
26•aboardRat4•5d ago•5 comments

ChatGPT starts blocking direct requests to copy an author's style

https://arstechnica.com/ai/2026/07/chatgpt-stops-cloning-famous-writers-voices-but-may-capture-a-...
13•Eloissssss•1h ago•0 comments

Maryland Closes More of Cunningham Falls State Park After Second Beaver Attack

https://news.maryland.gov/dnr/2026/08/05/dnr-closes-additional-areas-of-cunningham-falls-state-pa...
100•bookofjoe•6h ago•62 comments

Lost my phone at the office. Claude suggested tracking Bluetooth signal strength

https://twitter.com/un1c0rnioz/status/2084686552299634805
233•ilamont•1d ago•170 comments

TinySol, a tiny solitaire game for DOS

https://classicbits.net/coding-and-software/my-software/monosol/
50•skibz•9h ago•14 comments

Danish high schoolers will have to verbally defend written assignments

https://mezha.net/eng/bukvy/ca117584_denmark_requires_oral/
530•theanonymousone•9h ago•248 comments

“Code was never the hard part” is an insult to all programmers

https://blog.senko.net/code-was-never-the-hard-part-is-an-insult-to-all-programmers
612•senko•13h ago•384 comments

Gateway 2000's hilariously bad ads in the 90s (Part II)

https://buttondown.com/suchbadtechads/archive/gateway-2000-part-2/
108•rfarley04•15h ago•84 comments

Message your other Claude Code sessions

https://code.claude.com/docs/en/cross-session-messaging
75•mfiguiere•12h ago•35 comments

Should you stop cracking your knuckles?

https://www.bbc.com/future/article/20260807-should-i-stop-cracking-my-knuckles
21•tchalla•5h ago•21 comments

DeepMind's WeatherNext model achieves breakthrough forecasting cyclones

https://deepmind.google/blog/weathernext-ai-model-achieves-breakthrough-in-forecasting-cyclones/
396•bhavansig•18h ago•121 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