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Open Source @Github

Introducing tmux-rs

https://richardscollin.github.io/tmux-rs/
668•Jtsummers•13h ago•216 comments

Flounder Mode – Kevin Kelly on a different way to do great work

https://joincolossus.com/article/flounder-mode/
200•latentnumber•13h ago•41 comments

Launch HN: K-Scale Labs (YC W24) – Open-Source Humanoid Robots

157•codekansas•12h ago•83 comments

AV1@Scale: Film Grain Synthesis, The Awakening

https://netflixtechblog.com/av1-scale-film-grain-synthesis-the-awakening-ee09cfdff40b
182•CharlesW•12h ago•149 comments

Wind Knitting Factory

https://www.merelkarhof.nl/work/wind-knitting-factory
99•bschne•8h ago•25 comments

Manipulating trapped air bubbles in ice for message storage in cold regions

https://www.cell.com/cell-reports-physical-science/fulltext/S2666-3864(25)00221-8
48•__rito__•3d ago•12 comments

Peasant Railgun

https://knightsdigest.com/what-exactly-is-the-peasant-railgun-in-dd-5e/
213•cainxinth•14h ago•157 comments

Poor Man's Back End-as-a-Service (BaaS), Similar to Firebase/Supabase/Pocketbase

https://github.com/zserge/pennybase
158•dcu•13h ago•98 comments

Electronic Arts Leadership Are Out of Their Goddamned Minds

https://aftermath.site/ea-dice-battlefield-battle-royale-free-to-play-f2p
23•dotmanish•1h ago•14 comments

White House claims expansive power to nullify TikTok ban and other laws

https://www.nytimes.com/2025/07/03/us/politics/trump-bondi-tiktok-executive-power.html
9•ytpete•18m ago•1 comments

Ubuntu 25.10 Raises RISC-V Profile Requirements

https://www.omgubuntu.co.uk/2025/06/ubuntu-riscv-rva23-support
81•bundie•2d ago•23 comments

Sound Chip, whisper me your secrets [video]

https://media.ccc.de/v/gpn23-302-sound-chip-whisper-me-your-secrets-
10•rasz•2d ago•0 comments

High-Fidelity Simultaneous Speech-to-Speech Translation

https://arxiv.org/abs/2502.03382
74•Bluestein•8h ago•40 comments

Opening up ‘Zero-Knowledge Proof’ technology

https://blog.google/technology/safety-security/opening-up-zero-knowledge-proof-technology-to-promote-privacy-in-age-assurance/
249•doomroot13•11h ago•151 comments

Where is my von Braun wheel?

https://angadh.com/wherevonbraunwheel
131•speckx•15h ago•98 comments

Caching is an abstraction, not an optimization

https://buttondown.com/jaffray/archive/caching-is-an-abstraction-not-an-optimization/
95•samuel246•2d ago•80 comments

Postcard is now open source

https://www.contraption.co/postcard-open-source/
92•philip1209•12h ago•29 comments

CO2 sequestration through accelerated weathering of limestone on ships

https://www.science.org/doi/10.1126/sciadv.adr7250
36•PaulHoule•5h ago•28 comments

(Experiment) Colocating agent instructions with eng docs

https://technicalwriting.dev/ai/agents/colocate.html
7•dannyrosen•3d ago•2 comments

Converge (YC S23) well-capitalized New York startup seeks product developers

https://www.runconverge.com/careers
1•thomashlvt•7h ago

An Algorithm for a Better Bookshelf

https://cacm.acm.org/news/an-algorithm-for-a-better-bookshelf/
82•pseudolus•2d ago•12 comments

Fei-Fei Li: Spatial intelligence is the next frontier in AI [video]

https://www.youtube.com/watch?v=_PioN-CpOP0
264•sandslash•2d ago•137 comments

Encoding Jake Gyllenhaal into one million checkboxes (2024)

https://ednamode.xyz/blogs/2.html
54•chilipepperhott•12h ago•13 comments

AI for Scientific Search

https://arxiv.org/abs/2507.01903
94•omarsar•13h ago•22 comments

Show HN: I rewrote my notepad calculator as a local-first app with CRDT syncing

https://numpad.io
30•tonyonodi•3d ago•12 comments

Michael Madsen has died

https://www.nytimes.com/2025/07/03/movies/michael-madsen-dead.html
96•anigbrowl•6h ago•30 comments

Astronomers discover 3I/ATLAS – Third interstellar object to visit Solar System

https://www.abc.net.au/news/science/2025-07-03/3i-atlas-a11pl3z-interstellar-object-in-our-solar-system/105489180
291•gammarator•1d ago•161 comments

About AI Evals

https://hamel.dev/blog/posts/evals-faq/
172•TheIronYuppie•3d ago•40 comments

Stalking the Statistically Improbable Restaurant with Data

https://ethanzuckerman.com/2025/07/03/stalking-the-statistically-improbable-restaurant-with-data/
60•nkurz•11h ago•31 comments

Nintendo locked down the Switch 2's USB-C port and broke third-party docking

https://www.theverge.com/report/695915/switch-2-usb-c-third-party-docks-dont-work-authentication-encryption
7•snvzz•1h ago•3 comments
Open in hackernews

You can now directly sync Postgres with Redis

https://github.com/redfly-ai-org/redfly.ai
22•vijaymohan1979•2mo ago

Comments

yohannparis•1mo ago
No Pricing information nor an open-source project. I don't know what to do with this product.
jasonlotito•1mo 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•1mo 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•1mo ago
https://github.com/redfly-ai-org/redfly.ai/wiki/Q-&-A
maxmcd•1mo 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.
myflash13•1mo ago
There’s also Polyscale as a service.
vijaymohan1979•1mo ago
https://github.com/redfly-ai-org/redfly.ai/wiki/Q-&-A
vijaymohan1979•1mo ago
https://github.com/redfly-ai-org/redfly.ai/wiki/Q-&-A
henning•1mo 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•1mo ago
> Yes, I realize the source is there

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

vijaymohan1979•1mo ago
https://github.com/redfly-ai-org/redfly.ai/wiki/Q-&-A
hangonhn•1mo 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•1mo 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•1mo ago
https://github.com/redfly-ai-org/redfly.ai/wiki/Q-&-A
solatic•1mo 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•1mo 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•1mo ago
https://github.com/redfly-ai-org/redfly.ai/wiki/Q-&-A