Ask HN: How to use agents via API cheaply?
I’d like to code with an AI agent via a BYOK open source client. I want to be able to inspect everything, check the system prompt, etc. Also, I’d like to avoid vendor lock in.
💻 Technology
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Your OpenAPI spec is already a test plan — here's how to turn it into Playwright tests automatically
If you're writing Playwright API tests manually from an OpenAPI/Swagger spec, you're doing work that should be automated. Every endpoint in your spec already tells you: What the request looks like (path, method, parameters, body schema) What responses to expect (200, 401, 404, 422... ) What fiel...
Samba File Sharing on Linux: Setting Up Shares With and Without Authentication
If you've got a Linux box and a Windows machine on the same network, you shouldn't need a USB stick to move files between them. That's the whole reason Samba exists: it makes a Linux server show up as an ordinary network drive to Windows — and to other Linux machines too — so anyone on the netwo...
TiRex-2: Generalizing TiRex to Multivariate Data and Streaming
1 points, 0 comments on Hacker News
I built a non-physical GPU that does 194,396 yottaflops on one CPU core
1 points, 0 comments on Hacker News
Hardest engineering challenge in post-quantum Bitcoin?
1 points, 0 comments on Hacker News
A Natural Experiment in Economics
2 points, 0 comments on Hacker News
I Found the LeetCode for System Design Interview, and It's Awesome
Disclosure: This post includes affiliate links; I may receive compensation if you purchase products or services from the different links provided in this article. Credit: codemia. io Hello Devs, if you're preparing for software engineering interviews, particularly in MAANG, you already know that...
📐 Mathematics for AI — Foundation Course
Before you can truly understand how AI systems think, learn, and generate responses, you need to understand the math that powers them. This guide covers the essential mathematical concepts that form the backbone of modern Artificial Intelligence and Large Language Models (LLMs). Why does this m...
Teaching My Backend to Lock the Door — FastAPI Auth, Phase 3
Hash the password, hand out a token, and make absolutely sure no one can read someone else's expenses. So Phase 2 gave my app a mouth. It could finally talk — create, read, update, and delete expenses over real HTTP endpoints, all clicking together through /docs .
AI Wrappers Are Dying. Three Business Models Survived Instead.
In 2024, everyone and their manager launched an AI wrapper. A thin layer over GPT-4, a nice UI, a subscription fee, and boom: you were an AI company. Product Hunt had hundreds of these launches.
Show HN: Hwatu – verification browser for coding agents (WebKit, one binary)
1 points, 0 comments on Hacker News
Show HN: SimTelemetry – SIM Racing Telemetry and Analysis
Hi HN, I built SimTelemetry, a desktop telemetry recorder and lap analysis app inspired by garage61 Currently suports Assetto Corsa, Le Mans Ultimate and iracing, raceroom, ac evo coming soon. Sessions are recorded automatically and you can compare laps, sectors, racing lines, braking, throttle,...
What a HIPAA-Compliant AI Voice Agent Actually Costs
A HIPAA-compliant AI voice agent for healthcare typically costs $40,000-$150,000 to build, depending on call complexity and EHR integration, plus $2,000-$15,000/month to operate. The build cost isn't dominated by the speech model — it's dominated by the compliance and data-retention layer wrappe...
Apache Airflow com .NET 10: dispare e monitore DAGs
Introdução Integrar Apache Airflow com . NET 10 não significa portar o orquestrador, reescrever DAGs em C# ou executar o runtime Python dentro da aplicação. A solução correta é manter o Airflow responsável por criar, agendar e monitorar workflows e fazer o serviço .
QR Codes Make Their Way Down Wedding Aisles
The technology, often associated with pandemic-era menus, is being used by more couples for ease, cost, expedience and sustainability.
Email Is Not the Universal Agent Protocol: What I Found Testing It
Email Is Not the Universal Agent Protocol: What I Found Testing My Email System An honest postmortem. What Started This This morning my email system broke. I sent 10 emails when I should have sent 5.
Contagious Cancer Found in North American Catfish
Scientists identified the first known cancer transmissible among freshwater fish in a lake that spans the US and Canada.
How Many Electrolytes Should You Be Taking, and Can You Have Too Many?
Electrolyte powders promise better hydration, energy, and recovery. But unless you’re losing serious fluid, water and food probably have you covered.
Case Study: AI Trainer Platform and Job Board [Months 1-6]
1 points, 0 comments on Hacker News
Show HN: Nostalgia – A shareable Windows 98 desktop builder
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Stop screeching about immigration, and get smart about it
1 points, 0 comments on Hacker News
Ask HN: Good Data Classification Software?
My company wants to organize and classify their documents primarily to guard against people uploading sensitive documents into AI or emailing them to the wrong recipients. Need to go beyond just credit card or ID detection, many documents are sensitive because of what they are e. g.
New Tariffs Cover 99.4% of U.S. Imports. Your Plan Doesn't
2 points, 0 comments on Hacker News