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Your ePub Is fine

https://andreklein.net/your-epub-is-fine-kobo-disagrees-blame-adobe/
414•sohkamyung•7h ago•164 comments

Even more batteries included with Emacs

https://karthinks.com/software/even-more-batteries-included-with-emacs/
105•signa11•3h ago•20 comments

Show HN: Kage – Shadow any website to a single binary for offline viewing

https://github.com/tamnd/kage
494•tamnd•12h ago•103 comments

Bitsy

https://bitsy.org/
122•tosh•3d ago•3 comments

Prove you're human by winning a claw machine

https://feralui.vercel.app/#/captcha
44•speckx•2d ago•26 comments

21 years and counting of 'eight fallacies of distributed computing' (2025)

https://blog.apnic.net/2025/12/08/21-years-and-counting-of-eight-fallacies-of-distributed-computing/
55•teleforce•6h ago•10 comments

Firewood Splitting Simulator

https://screen.toys/firewood/
741•memalign•5d ago•230 comments

Rio de Janeiro's "homegrown" LLM appears to be a merge of an existing model

https://github.com/nex-agi/Nex-N2/issues/4
323•unrvl22•14h ago•178 comments

Why does paper fold so well?

https://www.bbc.co.uk/programmes/w3ct8k70
16•zeristor•1d ago•1 comments

A short history of Cerro Torre, the most controversial mountain (2012)

https://www.markhorrell.com/blog/2012/a-short-history-of-cerro-torre/
26•joebig•4d ago•9 comments

Curl will not accept vulnerability reports during July 2026

https://daniel.haxx.se/blog/2026/06/15/curl-summer-of-bliss/
13•secret-noun•15m ago•0 comments

Show HN: Trace – Offline Mac meeting transcripts you can flag mid-call

https://traceapp.info
138•AG342•1d ago•54 comments

Ask HN: What are you working on? (June 2026)

198•david927•14h ago•724 comments

The Last Surviving Japanese Porsche 912 Police Car

https://kottke.org/26/06/the-last-surviving-japanese-porsche-912-police-car
7•zdw•2d ago•0 comments

Formal methods and the future of programming

https://blog.janestreet.com/formal-methods-at-jane-street-index/?from_theconsensus=1
235•eatonphil•17h ago•84 comments

Chaosnet (1981)

https://tumbleweed.nu/r/lm-3/uv/amber.html
75•RGBCube•11h ago•8 comments

TorchCodec 0.14: HDR Video Decoding for CPU and CUDA, and Fast Wav Decoder

https://github.com/meta-pytorch/torchcodec/releases/tag/v0.14.0
36•scott_s•4d ago•4 comments

Write for One Person

https://wizardzines.com/comics/write-for-one-person/
177•evakhoury•2d ago•58 comments

Show HN: Discover Wikipedia articles popular on Hacker News

https://www.orangecrumbs.com/
87•octopus143•12h ago•26 comments

Windows 11 users are tired of MS account requirements creeping into everything

https://www.windowscentral.com/microsoft/windows-11/windows-11-users-are-tired-of-microsoft-accou...
200•josephcsible•8h ago•132 comments

The only scalable delete in Postgres is DROP TABLE

https://planetscale.com/blog/the-only-scalable-delete
156•hollylawly•3d ago•56 comments

Perlisisms (1982)

https://www.cs.yale.edu/homes/perlis-alan/quotes.html
106•tosh•15h ago•53 comments

Caddy compatibility for zeroserve: 3x throughput and 70% lower latency

https://su3.io/posts/zeroserve-caddy-compat
171•losfair•16h ago•51 comments

Segmented type appreciation corner (2018)

https://aresluna.org/segmented-type/
70•unexpectedVCR•3d ago•16 comments

I indexed 669 GB of my GoPro videos using my M1 Max computer and local ML models

337•iliashad•15h ago•84 comments

FarOutCompany

https://faroutcompany.com/
115•bookofjoe•16h ago•17 comments

How to earn a billion dollars

https://paulgraham.com/earn.html
553•kingstoned•18h ago•1563 comments

USB Power Delivery: Plugging into the Benefits

https://www.aptiv.com/en/insights/article/usb-power-delivery-plugging-into-the-benefits
45•mooreds•3d ago•93 comments

The Birth and Death of JavaScript (2014)

https://www.destroyallsoftware.com/talks/the-birth-and-death-of-javascript
223•subset•17h ago•127 comments

The hallucinogenic mushroom that contains no known psychedelic

https://psychedelics.co.uk/news/a-mushroom-genus-that-gets-people-high-but-not-the
60•thunderbong•5h ago•35 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