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Start all of your commands with a comma (2009)

https://rhodesmill.org/brandon/2009/commands-with-comma/
233•theblazehen•2d ago•68 comments

OpenCiv3: Open-source, cross-platform reimagining of Civilization III

https://openciv3.org/
694•klaussilveira•15h ago•206 comments

Hoot: Scheme on WebAssembly

https://www.spritely.institute/hoot/
6•AlexeyBrin•1h ago•0 comments

The Waymo World Model

https://waymo.com/blog/2026/02/the-waymo-world-model-a-new-frontier-for-autonomous-driving-simula...
962•xnx•20h ago•555 comments

How we made geo joins 400× faster with H3 indexes

https://floedb.ai/blog/how-we-made-geo-joins-400-faster-with-h3-indexes
130•matheusalmeida•2d ago•35 comments

Unseen Footage of Atari Battlezone Arcade Cabinet Production

https://arcadeblogger.com/2026/02/02/unseen-footage-of-atari-battlezone-cabinet-production/
67•videotopia•4d ago•6 comments

Vocal Guide – belt sing without killing yourself

https://jesperordrup.github.io/vocal-guide/
54•jesperordrup•5h ago•24 comments

Jeffrey Snover: "Welcome to the Room"

https://www.jsnover.com/blog/2026/02/01/welcome-to-the-room/
36•kaonwarb•3d ago•27 comments

ga68, the GNU Algol 68 Compiler – FOSDEM 2026 [video]

https://fosdem.org/2026/schedule/event/PEXRTN-ga68-intro/
10•matt_d•3d ago•2 comments

Show HN: Look Ma, No Linux: Shell, App Installer, Vi, Cc on ESP32-S3 / BreezyBox

https://github.com/valdanylchuk/breezydemo
236•isitcontent•15h ago•26 comments

Monty: A minimal, secure Python interpreter written in Rust for use by AI

https://github.com/pydantic/monty
233•dmpetrov•16h ago•124 comments

Where did all the starships go?

https://www.datawrapper.de/blog/science-fiction-decline
32•speckx•3d ago•21 comments

Show HN: I spent 4 years building a UI design tool with only the features I use

https://vecti.com
335•vecti•17h ago•147 comments

Hackers (1995) Animated Experience

https://hackers-1995.vercel.app/
502•todsacerdoti•23h ago•244 comments

Sheldon Brown's Bicycle Technical Info

https://www.sheldonbrown.com/
386•ostacke•21h ago•97 comments

Show HN: If you lose your memory, how to regain access to your computer?

https://eljojo.github.io/rememory/
300•eljojo•18h ago•186 comments

Microsoft open-sources LiteBox, a security-focused library OS

https://github.com/microsoft/litebox
361•aktau•22h ago•185 comments

UK infants ill after drinking contaminated baby formula of Nestle and Danone

https://www.bbc.com/news/articles/c931rxnwn3lo
10•__natty__•3h ago•0 comments

An Update on Heroku

https://www.heroku.com/blog/an-update-on-heroku/
425•lstoll•21h ago•282 comments

PC Floppy Copy Protection: Vault Prolok

https://martypc.blogspot.com/2024/09/pc-floppy-copy-protection-vault-prolok.html
68•kmm•5d ago•10 comments

Dark Alley Mathematics

https://blog.szczepan.org/blog/three-points/
96•quibono•4d ago•22 comments

Was Benoit Mandelbrot a hedgehog or a fox?

https://arxiv.org/abs/2602.01122
21•bikenaga•3d ago•11 comments

The AI boom is causing shortages everywhere else

https://www.washingtonpost.com/technology/2026/02/07/ai-spending-economy-shortages/
19•1vuio0pswjnm7•1h ago•5 comments

How to effectively write quality code with AI

https://heidenstedt.org/posts/2026/how-to-effectively-write-quality-code-with-ai/
264•i5heu•18h ago•216 comments

Delimited Continuations vs. Lwt for Threads

https://mirageos.org/blog/delimcc-vs-lwt
33•romes•4d ago•3 comments

Introducing the Developer Knowledge API and MCP Server

https://developers.googleblog.com/introducing-the-developer-knowledge-api-and-mcp-server/
64•gfortaine•13h ago•28 comments

I now assume that all ads on Apple news are scams

https://kirkville.com/i-now-assume-that-all-ads-on-apple-news-are-scams/
1076•cdrnsf•1d ago•460 comments

Female Asian Elephant Calf Born at the Smithsonian National Zoo

https://www.si.edu/newsdesk/releases/female-asian-elephant-calf-born-smithsonians-national-zoo-an...
39•gmays•10h ago•13 comments

Understanding Neural Network, Visually

https://visualrambling.space/neural-network/
298•surprisetalk•3d ago•44 comments

I spent 5 years in DevOps – Solutions engineering gave me what I was missing

https://infisical.com/blog/devops-to-solutions-engineering
154•vmatsiiako•20h ago•72 comments
Open in hackernews

Taming P99s in OpenFGA: How we built a self-tuning strategy planner

https://auth0.com/blog/self-tuning-strategy-planner-openfga/
18•elbuo•2w ago

Comments

shoo•2w ago
Fun to see a write up applying multi-armed bandits.

I had a bit of trouble following the article as I don't understand the problem space well enough. When framing this problem, the authors wrote:

  Answering "Can user X access resource Y?" requires traversing relationship graphs. In this context, traversal performance isn't just a feature; it is the fundamental constraint of the system's architecture.
Concretely, in an OpenFGA / Auth0 FGA deployment where graph traversal becomes enough of a bottleneck that introducing a planner like this becomes compelling, how is the graph and the traversal manifested? What's actually going on?

Would the relationship graph be represented as a bunch of relations stored in a single SQL DB? Or does querying and traversing the graph require making a bunch of API calls to various downstream services over the customer's network?

yehia2amer•1w ago
In OpenFGA/Auth0 FGA, the “relationship graph” is not usually a separate graph database or a pile of downstream service calls. It’s an implicit graph whose edges are the relationship tuples you’ve stored, interpreted through the authorization model (the DSL that says how one relation implies another, how to follow parents, groups, etc.).

What the graph “is” in a typical deployment

Edges = tuples like: document:1#viewer@user:anne document:1#viewer@group:eng#member document:1#parent@folder:A

These are persisted in the OpenFGA datastore (commonly Postgres).

What “traversal” actually does at runtime

A Check(user=X, relation=R, object=Y) request is evaluated by resolving the model for (Y#R) and reading whatever tuples are needed to prove/disprove membership.

Traversal becomes painful when checks cause High fan-out (e.g., a document inherits viewers from a folder, that folder has 50 groups, each group contains groups…) or like Deep nesting (group-of-group chains)

That’s exactly the niche where smarter planning/strategy selection helps.

Do checks require “a bunch of API calls to downstream services”?

Normally, no. OpenFGA/Auth0 FGA doesn’t need to call your microservices to traverse your domain graph. The check is decided from: - the authorization model, and - tuples in the OpenFGA store, - plus any contextual tuples you included in the request (ephemeral edges that behave as-if written, but aren’t persisted).

yehia2amer•1w ago
I really respect OpenFGA & team behind it, I used it in multiple projects and it completely eliminate the AuthZ from our code.

But it always had this issue with Admin management, It is hard for Admins to understand and maintain.

That’s why I created an Admin UI for OpenFGA, The main goal is that the UI is Dynamic and it changes as per your OpenFGA Model, Then you can Easily Add users

I built this because my team was constantly struggling with managing permissions in our applications. we tried building admin UIs multiple times, but every time the OpenFGA model changed, we had to rework the UI layer to match it one way or another.

So mainly the UI understand your OpenFGA schema and automatically renders the management interface based on the entities and relationships defined in your model.

https://github.com/yehia2amer/OpenFGA-Admin-UI

aaguiarz•1w ago
Thanks for that Yehia, looks pretty good and useful!
deckar01•1w ago
I don’t understand why Thompson sampling would be used for an experiment that can be rapidly repeated. Isn’t reconfiguring the FPGA orders of magnitude slower than measuring latency? It seems like you could produce a high confidence posterior by resampling so fast that there is no point in prioritizing what needs to be revisited (especially with good priors).
deckar01•1w ago
Edit: FGA != FPGA. This is purely software.