
TariffCatalog
Free HS Code, Tariff & Customs Tools for Ecommerce Catalogs
What it does
Find candidate HS codes, check missing country of origin, estimate duty inputs, and prepare customs document drafts for Shopify, WooCommerce, Amazon, and CSV product catalogs.
Does the same job
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- VDVisaWhen – Data on US visa issuance backlogs2021 · ▲104
Heya! Not the usual sort of thing to be posted here, but I wanted to show off what I made yesterday. Here's a sample page about H1-B visas issued in Bogota: The code is source-available (not open source) at . It's my first time choosing a source-available license over MIT, mainly out of fear of existing immigration startups just gobbling this data and code up; frankly I didn't think the implications through though, I just threw a safe license on there. The way the project works is: - Use requests-html to find publicly available PDFs from government pages - Use camelot to OCR the PDFs and…


More growth this month
the category →
AstraPixels▲267A pixel-art solar system at its real current positions.
Growth · 29d ago · astrapixels.com

Launched alongside, August 2026
the whole month →- TL
Life & fun · 10d ago · louisabraham.github.io


- SA
Hello HN! I found that picking out plausible but diverse skin tones for my digital art and game development projects was kind of difficult, and I got curious about if there was a way to define a color space that made it easy. I've built a color picker and procedural generation algorithm based on the space as well as a bunch of other fun js features and demos throughout the page that use the equations. If you find it interesting, I have lots of explanations of how I built it and what properties the space has. The methodology might be a bit shaky, but hopefully the result is as helpful for…
Life & fun · Aug 2026 · toneyalexander.github.io


I trained a 125M-parameter transformer to autocomplete piano performances in real time (~108 notes/sec on an iPhone 15). The idea is basically GitHub Copilot or Tabnine, except instead of prompting it with code, you prompt it by playing a few notes on a MIDI piano. The model then continues what you played, entirely on-device. The app is free if anyone wants to try it. Happy to answer questions about the model, training, Core ML, or the many things that didn't work.
AI · 17d ago · simedw.com