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Maybe I need to punish tab/windows switches more severely?

Or perhaps require webcam and do eye tracking?

School/students were my target user when I created this. But also mostly just a fun toy.
That's cool, thanks for sharing.

Is there a way to detect this approach?

Ok, that's helpful but I'd argue even a limit order book has an algorithm (albeit simple)

Ask HN: What are the algorithms used by predictions markets like Polymarket?

I am curious how prediction markets like polymarket and kalshi work behind the scenes. I assume it's more like stock options than sports betting.Is there something like a market maker to help provide liquidity?Is it setting probabilities/prices using something like black-scholes?How would you design a very simple prediction market MVP?

( Read More... | 10 comments | 4 points | on HN )
Re:Ask HN: Any good essays/books/advice about software sales? on Monday September 30, 2024 @05:57PM (#41702572)
Predictable Revenue is considered canon for B2B/enterprise sales https://www.amazon.com/Predictable-Revenue-Business-Practice...

But not sure how applicable to agencies it is so YMMV.

Show HN: I made a weight-loss app using OpenAI APIs

https://apps.apple.com/us/app/fatgpt-ai-weight-loss-coach/id6478470228

Hey HN, wanted to show you my weekend project (several weekends actually).A few months back I started experimenting with LLMs as a way to estimate calories/macros and give useful feedback. The results were good enough that I felt like something was there. I wanted to shed a few pounds so I built out a web app for myself. A few friends tried it and everyone said "this needs to be a native...

( Read More... | no comments | on HN )
+1 I use chartjs for the web version of fatgpt.ai. It easy to setup and you can get charts going very quickly.

If I needed more dense data viz (ex a datadog-like system) I'd probably go with something D3 based

It's interesting, seems like a popular space lately (even within YC). Off the top of my head, there's merge.dev, Terra, Kombo, Workato.

Aside from the obvious question of "how are you different/better?" I'm most curious to know why you're going so broad initially. You've got everything from legal to devtools to gaming. Seems like the opposite of a wedge/beachhead approach. Why?

I was somewhat involved in this project. Can't get into details but there were other factors/efforts not mentioned which allowed us to scale this while reducing cost per recommendation. As someone mentioned, I do believe we benefited from a price drop over time.

Regarding the monthly scale mentioned in article–we are way beyond that now.

A lot of really smart people worked on this and it was fun to watch unfold.

Re:Ask HN: What have you built with LLMs? on Tuesday February 06, 2024 @11:41AM (#39276554)
Transformers that transform your body
Re:Ask HN: What have you built with LLMs? on Monday February 05, 2024 @04:52PM (#39267761)
Jokes aside, GPT-4 Vision is surprisingly good at noticing facts from food images. For example:

- In my chipotle bowl, it can tell if I had brown rice vs white rice

- In my In-n-out, it can tell if I got it protein style

It struggles with accurate weights/volumes but I'm excited about where this is going.

Re:Ask HN: What have you built with LLMs? on Monday February 05, 2024 @04:18PM (#39267332)
I'm building a weight-loss app that leverages LLM to do 2 things:

1. Analyze calories/macronutrients from a text description or photo

2. Provide onboarding/feedback/conversations like you'd get from a nutritionist

https://www.fatgpt.ai/

My stack is Ruby on Rails, PostgreSQL, OpenAI APIs. I chose Rails because I'm very fast in it, but I've found the combination of Rails+Sidekiq+ActionCable is really nice for building conversational experiences on the web. If I stick with this, I'll probably need a native iOS app though.

Vendor stack is: GitHub, Heroku (compute), Neon (DB), Loops.so (email), PostHog (analytics), Honeybadger (errors), and Linear.

I mean a single checkout from multiple shopify stores isn't really possible (at least by 3rd parties)

My hypothesis is that, if you could drive traffic to your site and offer a fast checkout experience, there's probably multiple ways to monetize that. Driving the traffic is the hard part.

I built this a couple years ago (now defunct) for the same reason :) The public JSON endpoints on shopify stores make it pretty easy to get the data. You mentioned using Mongo but it sounds expensive. I honestly think you could do this with just elastic or even postgres full text search and save money.

Here's a pro tip + feature you should implement: Shopify has a semi-hidden hack where you can link directly to checkout of a product if you know the variant ID. You could add a BUY NOW button to your site without forcing the user to navigate the original site or checkout flow. Example: https://hapaboardshop.com/cart/42165521907955 (it also supports quantities and coupon codes)

A word of caution: more products isn't necessarily better. I definitely found there to be a long tail of really bad shopify stores and products. IMO it's better to curate or audit the stores you index–otherwise you risk your site being littered with kitchy t-shirts or drop-shipping garbage.

Re:Llamafile lets you distribute and run LLMs with a single file on Wednesday November 29, 2023 @05:45PM (#38466378)
when I try to do this (MBP M1 Max, Sonoma) I get 'killed' immediately
Re:Launch HN: Pier (YC W23) – Stripe for Credit on Wednesday October 18, 2023 @04:15PM (#37934185)
This is really cool and (I think) unlocks an idea I've had for a long time: moviepass for restaurants (aka a new spin on groupon).

I think you could get consumers to subscribe to discounts/deals at nearby restaurants and I think you could get restaurants to offer discounts one-time or during non-peak days/times. I tried to do this in the past using card issuing services (like Stripe's) but it was clunky with debit cards. The ability to do this via credit would make this a lot easier.

I'm about to submit a delay compensation claim with Air Canada. Any tips?
Re:Show HN: Arroyo – Write SQL on streaming data on Wednesday June 07, 2023 @12:10PM (#36228783)
Correct

I live in a California town called Arroyo Grande ("big creek")

Re:Important Team and Business Changes on Thursday May 04, 2023 @11:56AM (#35817480)
The 20% number is a bit ambiguous. How many are being laid off and how many are moving over to Flexport?
Re:Important Team and Business Changes on Thursday May 04, 2023 @11:54AM (#35817440)
We also did this when we did a layoff last month (announcement was on a wednesday and people had access to email through the week). Agree with your sentiment.
Women on average score higher than men on the dimension of neuroticism in big-5 personality tests (as well as anxiety-related dimensions in other tests). [1]

Couldn't the why be due to (at least in part) these innate gender differences?

[1] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3149680/

Re:Show HN: Pynecone – Web Apps in Pure Python on Friday December 09, 2022 @06:20PM (#33927813)
"Pure Python"

"Requires NodeJS"

Re:Ask HN: Who is hiring? (September 2022) on Friday September 02, 2022 @03:20PM (#32694761)
Indeed | Remote (US & Canada) | Full-time | Software engineers at every level

If you want to come work at a big tech company with a genuine mission (literally "Help People Get Jobs"), come join me at Indeed.

As part of an effort to dogfood our own virtual interviewing products, our Enterprise group is holding a virtual hiring event next week (Sept 8) for software engineers at various levels. If you're interested, please reserve a spot here:

https://intsignup.indeed.com/interview/3c1f9569-c8c0-40c2-b2...

I also have UX, engineering manager, and data/product science roles open in my product group. If you're interested in those roles, please email me directly: [email protected]

Cheers!

Re:Ask HN: Who is hiring? (August 2022) on Monday August 01, 2022 @07:47PM (#32313603)
Indeed | Principal Engineers, Engineering Manager, Data/Product Science, UX | Full-time | REMOTE in US or Austin, TX

I lead engineering for a product group devoted to deeply understanding jobs & job seekers–and then surfacing the best candidates to employers. One of our teams was a YC startup acquired in 2017. If you're looking to work remotely at a large tech company with a genuinely positive mission and great work-life balance, then please keep reading.

We currently have several roles open across 4 teams, including:

- 1 Engineering manager role

- 1 Senior UX designer

- 1 UX researcher

- 2 Staff/Principle engineers (10+ yoe)

- 1 Product scientist

I encourage anyone here who is interested to email me directly: [email protected]

Tech stack: React, Java (Spring), Kotlin, PostgreSQL, Redis, ES, AWS, k8s, Elasticsearch, Ruby on Rails

Lots of great answers here. I’ll add my employer Indeed, the world’s #1 job website/app. Our mission is simple: help people get jobs.

For a large tech company I find it extremely impressive how much everyone at the company–from senior leadership to L1 engineers–sincerely believe in the mission and what we’re doing.

I’ve got several openings on my team. I’d encourage you to read more about our values. If it aligns with what you care about feel free to reach out.

https://www.indeed.jobs/

Re:Apple Cash on Monday May 23, 2022 @12:14AM (#31475296)
Have you not tried Greenlight? My 3 kids have had greenlight cards since they were 12. The mobile app UX isn’t great but it checks all the boxes on features.

Few products have made our personal lives so much easier. Not having to ever get/give cash for them is amazing.

A roundabout way of doing 1+2 could be to find a reputable journalist and explain the situation to them. They could publish a story (possibly requesting comment from the site owners first) on it and keep you anonymous.

This could be a way to do the right thing while lowering your risk of being charged with violating some antiquated hacking law.

But also talk to an attorney before doing that.

Re:HTTP Cats on Thursday May 19, 2022 @07:20PM (#31441456)
I wish the response status actually matched the request

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