Data Analyst OS
Learn, practice, build projects, and become job-ready
What it does
Data Analyst OS is an Obsidian workspace for aspiring data analysts who want one organized system for learning, practicing, and building portfolio-ready skills. It includes learning and practice hubs for Excel, SQL, Python, Pandas, and Power BI, hands-on challenges, cheat sheets, reusable templates, progress tracking, and a guided retail sales analysis project. Built around one workflow: Learn → Practice → Analyze → Build → Get Hired.
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Learn SQL with Codecademy and Periscope2015 · ▲249Learn SQL - the preferred tool of data analysts everywhere …
More work this month
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The app store for voice native apps that lives in your notch
Work · 28d ago · voiceos.com
The New Calendly▲211Handle all of the work before, during, and after meetings
Work · 17d ago · calendly.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 · 16d ago · simedw.com