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Old and new apps, via modern coding agents by Terry Tao

https://terrytao.wordpress.com/2026/07/11/old-and-new-apps-via-modern-coding-agents/
137•subset•2h ago•31 comments

Yt-Dlp Sequence Diagrams

https://app.ilograph.com/demo.ilograph.yt-dlp/Download%2520a%2520YouTube%2520Video
61•billyp-rva•2h ago•9 comments

Understanding the Odin Programming Language

https://odinbook.com/
36•AlexeyBrin•2h ago•3 comments

Ghostel.el: Terminal emulator powered by libghostty

https://dakra.github.io/ghostel/
86•signa11•5h ago•5 comments

Vint Cerf, a “father of the Internet”, is retiring

https://techcrunch.com/2026/06/30/the-father-of-the-internet-is-finally-retiring/
177•compiler-guy•2d ago•101 comments

Unauthenticated RCE in Motorola's MR2600 Router

https://mrbruh.com/motorola/
19•MrBruh•2h ago•1 comments

Show HN: Mindwalk – Replay coding-agent sessions on a 3D map of your codebase

https://github.com/cosmtrek/mindwalk
108•cosmtrek•8h ago•46 comments

Mesh LLM: distributed AI computing on iroh

https://www.iroh.computer/blog/mesh-llm
293•tionis•15h ago•69 comments

Lessons from the Vasa Shipwreck

https://www.ft.com/content/200a6c44-9b66-4af3-82eb-98acb53898e4
6•bookofjoe•3d ago•4 comments

Protobuf-py: Protobuf for Python, without compromises

https://buf.build/blog/protobuf-py
90•ming13•4d ago•22 comments

Xbox 'OG' Adventures

https://mamoniem.com/xbox-og-adventures/
23•davikr•5d ago•2 comments

Nvidia, CoreWeave, and Nebius: Inside the Circular Financing of the GPU Boom

https://io-fund.com/ai-stocks/nvidia-coreweave-nebius-circular-financing-gpu-boom
307•adletbalzhanov•20h ago•124 comments

Ditching Zotero for a Text File

https://atthis.link/blog/2026/57207.html
16•speckx•5d ago•10 comments

Handsum: An LQIP Image File Format

https://nigeltao.github.io/blog/2026/handsum.html
32•dmit•4d ago•3 comments

An agent in 100 lines of Lisp

https://thebeach.dev/posts/lisp-agent/
184•jamiebeach•4d ago•51 comments

RISCBoy is an open-source portable games console, designed from scratch

https://github.com/Wren6991/RISCBoy
172•mariuz•16h ago•24 comments

Show HN: Ant – A JavaScript runtime and ecosystem

https://antjs.org
299•theMackabu•18h ago•133 comments

Making Crash Bandicoot (2011)

https://all-things-andy-gavin.com/2011/02/02/making-crash-bandicoot-part-1/
11•alexpls•49m ago•0 comments

I Did Not Kill Stanley Lieber: How to Draw (With 9front)

https://triapul.cz/automa/i_did_not_kill_stanley_lieber
87•c-c-c-c-c•2d ago•29 comments

Text art tools

https://hlnet.notion.site/text-art-tools
69•surprisetalk•4d ago•19 comments

Fibonacci's Real Mathematical Legacy

https://blogs.nature.com/aviewfromthebridge/2017/04/20/fibonaccis-mathematical-legacy/
17•ColinWright•4d ago•5 comments

EF Core 11 makes your split queries faster

https://steven-giesel.com/blogPost/d4401fd0-805a-4703-9d9e-5fe3b57c25ea
54•rellem•1w ago•25 comments

UPI: Anatomy of a Payment Transaction

https://timeseriesofindia.com/economy/reads/upi-architecture/
215•prtk25•21h ago•101 comments

Billions of Sketches Reveal Hidden Cultural Variation in Human Concepts

https://arxiv.org/abs/2607.07267
117•Anon84•2d ago•19 comments

We scaled PgBouncer to 4x throughput

https://clickhouse.com/blog/pgbouncer-clickhouse-managed-postgres
228•saisrirampur•22h ago•53 comments

Modern decor may be straining people's brains

https://studyfinds.com/modern-decor-may-be-straining-peoples-brains/
230•downwithdisease•21h ago•230 comments

Jellyfish Undersea Roundabout

https://visitfaroeislands.com/en/plan-your-stay/getting-around/world-first-under-sea-roundabout
63•hydrogen7800•3d ago•23 comments

The early History of the Singular Value Decomposition (1993) [pdf]

https://www.math.ucdavis.edu/~saito/courses/229A/stewart-svd.pdf
132•wolfi1•22h ago•71 comments

Under federal rule, colleges must leave grads better off or lose financial aid

https://www.npr.org/2026/06/30/nx-s1-5835631/turner-camhi-do-no-harm-college-loans
149•nradov•10h ago•312 comments

Prefer strict tables in SQLite

https://evanhahn.com/prefer-strict-tables-in-sqlite/
316•ingve•20h ago•161 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