Learn how to design large-scale systems. Prep for the system design interview. Includes Anki flashcards.

A set of exercises to prepare for Certified Kubernetes Application Developer exam by Cloud Native Computing Foundation

🚀 500+ curated resources for Data Analysis & Data Science: Python, SQL, Statistics, ML, AI, Visualization, Cheatsheets, Roadmaps, Interview Prep. For beginners and experts.

visual data prep powered by python

An evidence-bound Codex skill for LLM internship resume polishing, JD tailoring, interview grilling, and project scouting.

Curated resources help you prepare for the CNCF/Linux Foundation CKS 2021 "Kubernetes Certified Security Specialist" Certification exam. Please provide feedback or requests by raising issues, or making a pull request. All feedback for improvements are welcome. thank you.

Build an upcoming US earnings calendar with dates, timing, consensus estimates, and market-impact context.

An exam cram coach skill for Claude agents that creates chaptered knowledge bases and quiz banks from course materials, with source-labeled answers and abstention when out of scope.

Docker Certified Associate Exam Preparation Guide

Observe the user's screen via screenpipe, detect repeated research workflows, match them against existing scientific-agent-skills, and draft new skills (or composition recipes that chain existing ones) for the patterns not yet covered. Use when the user asks to analyze their recent work and propose skills based on what they actually do. Requires the screenpipe daemon (https://github.com/screenpipe/screenpipe) running locally on port 3030 — the skill has no other data source and will refuse to run if screenpipe is unreachable. All detection runs locally; only redacted cluster summaries reach the LLM.

AI coding agent skills for KiCad electronics design. Works with Claude Code and OpenAI Codex. Analyze schematics, review PCB layouts, EMC pre-compliance, SPICE simulation, download datasheets, source components, and prep boards for fabrication.

A helpful 5-page machine learning cheatsheet to assist with exam reviews, interview prep, and anything in-between.