Hacker News

Article URL: https://www.theguardian.com/us-news/2026/jul/13/heat-dome-radio-signals-us-midwest

Comments URL: https://news.ycombinator.com/item?id=48894566

Points: 1

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Repro:

1. E.g. go to: https://chatgpt.com/plugins/plugin_asdk_app_6a4656c688748191be4c5247fb0d5dfc

2. Click on "Install plugin"

3. Click on "Sign In"

4. An empty tab opens and nothing happens...

Comments URL: https://news.ycombinator.com/item?id=48894554

Points: 1

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Article URL: https://labhtark.com/ai/

Comments URL: https://news.ycombinator.com/item?id=48894539

Points: 1

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Article URL: https://jacksondamian.substack.com/p/move-over-oppenheimer

Comments URL: https://news.ycombinator.com/item?id=48894517

Points: 1

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Article URL: https://github.com/houslast3/How-I-Squeezed-31.9-TFLOPS-out-of-an-RTX-4060-Beating-cuBLAS-by-14-

Comments URL: https://news.ycombinator.com/item?id=48894503

Points: 1

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Article URL: https://www.20problems.com/

Comments URL: https://news.ycombinator.com/item?id=48894467

Points: 2

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Article URL: https://www.cfosilvia.com/

Comments URL: https://news.ycombinator.com/item?id=48894466

Points: 2

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Article URL: https://github.com/DemchaAV/GraphCompose

Comments URL: https://news.ycombinator.com/item?id=48894461

Points: 1

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Article URL: https://www.nature.com/articles/s41550-026-02905-7

Comments URL: https://news.ycombinator.com/item?id=48894447

Points: 2

# Comments: 0

Last year, we rebranded forms.app, a form builder app. With the rebranding, we had an experimental hero section that we quite liked. It was an AI generator; people write what type of form they like, and even before they sign in, they get it.

I'd have liked to include all images here, but you can check them out here: https://salimdin.substack.com/p/how-an-ab-test-more-than-doubled-our-signups-on-formsapp

After a few months, we realized something was off. We thought it was about rankings, but after a few discussions, we decided to test our homepage hero section against two alternatives.

- Variant A: The AI generator version

- Variant B: Only sign-up buttons (nothing else)

- Variant C: A single button for the app itself (playground without sign-up)

We ran the experiment for 2 weeks and only for new visitors. The results were interesting, to say the least:

- Variant A came last on every single metric

- B got 2.6x the sign-ups of A

- C got fewer sign-ups than B, but those who did sign up activated more; so it's a more distilled result.

Seeing these results, we decided to move forward with Version B, as it has more promise, and agreed that B and C deserve their own testing.

Recently, we changed our pricing, and with it, Version B got an update. Soon, the C version will be updated too, and we'll pit them against each other. I'll be sharing the results when we run that A/B test.

What do you think? Are the results what you expected, or did they surprise you too?

It's not a promotion, just an article where I show the version and the results, but I couldn't submit with the URL (probably due to the Substack URL). So here it is: https://salimdin.substack.com/p/how-an-ab-test-more-than-doubled-our-signups-on-formsapp

Comments URL: https://news.ycombinator.com/item?id=48894437

Points: 1

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Article URL: https://www.overplane.dev/

Comments URL: https://news.ycombinator.com/item?id=48894426

Points: 2

# Comments: 1

Article URL: https://s4ready.fenikstech.ai/

Comments URL: https://news.ycombinator.com/item?id=48894419

Points: 1

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Article URL: https://www.arshad.fyi/writings/engineering-high-performance-parsers

Comments URL: https://news.ycombinator.com/item?id=48894417

Points: 1

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Article URL: https://www.reuters.com/legal/government/trump-invested-crypto-gains-stocks-bonds-filings-show-2026-07-13/

Comments URL: https://news.ycombinator.com/item?id=48894404

Points: 2

# Comments: 1

Hello Hacker News!

I have just launched SpreadsheetPreview, an embeddable Javascript/Typescript component that displays an Excel file (.xlsx) in any browser.

Benefits: No upload. No server. No Microsoft Office dependency.

You can see it here: https://spreadsheetpreview.com.

The component is based on DataGrid Toolkit, the toolkit that also powers upcoming DataGridXL v4, which is an editable data grid component with an Excel-like interface.

The component is free to use for non-commercial projects. Commercial use requires a license.

Please try it out and let me know what you think!

Best,

Robbert

Comments URL: https://news.ycombinator.com/item?id=48894390

Points: 1

# Comments: 1

Article URL: https://twitter.com/tmuxvim/status/2076692926059499646

Comments URL: https://news.ycombinator.com/item?id=48894384

Points: 1

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Article URL: https://www.cnbc.com/2026/07/12/elon-musk-and-sam-altman-spar-.html

Comments URL: https://news.ycombinator.com/item?id=48894359

Points: 1

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Article URL: https://taonaw.com/2026/07/10/auth-and-curl.html

Comments URL: https://news.ycombinator.com/item?id=48893620

Points: 1

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Article URL: https://aras-p.info/blog/2026/06/28/Joys-of-cancelling-a-TBB-task-group/

Comments URL: https://news.ycombinator.com/item?id=48893613

Points: 1

# Comments: 0

Hello HN!

As part of our work at Kenobi[0], I used Codex to analyse an HTTP archive (HAR) for a website I was trying to see if I could use programatically, i.e. by exposing its underlying / undocumented API. That approach worked much better than I expected, so I started looking for a way to do this easily for other websites.

I couldn't find exactly what I wanted, so we decided to build Harpist -- a product in two parts: i. A Chrome extension, that allows you to record HAR files and view generated documentation; and ii. A CLI that can be used by agents to refine these HAR files and create oRPC contracts, documentation, and allow you to replay HTTP requests.

There's an agent skill that lets you use Claude or Codex to manage all of the refinement and CLI usage, so right now the workflow is as follows:

1. Open the Chrome extension and record yourself using a website (the parts you'd want to automate).

2. Tell your agent to "use Harpist to refine my latest recording".

3. When it's done, the extension lets you view documentation for the discovered endpoints.

4. Replay the endpoints and view captured auth data in the CLI yourself, or just...

5. Ask your agent to do something for you on one of the website's you've captured and processed using Harpist.

It's all open source (MIT licensed)[1], and under the hood it uses oRPC to create TypeScript-compatible API contracts, but I've mostly been focussing on the documentation for now which just uses the oRPC Scalar integration[2] to generate OpenAPI-looking docs.

I'm keen to learn what other people are doing to discover and automate web workflows at the moment, and what kind of things people _wish_ existed too.

[0] - https://kenobi.ai

[1] - https://github.com/kenobi-ai/harpist

[2] - http://orpc.dev/docs/openapi/scalar

Comments URL: https://news.ycombinator.com/item?id=48893610

Points: 1

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