Data Science Tutorials

Discover the hidden constraint behind every statistical test and learn to interpret your results with real confidence.

A practical guide to running your own Bitwarden password vault with Docker, from initial server setup through configuration, updates, and common troubleshooting.

Podman Compose is a Python-based tool that reads Docker Compose files and runs multi-container applications using Podman's rootless, daemonless architecture for security-focused development environments.

Learn how to build a fully local AI data analyst using OpenClaw and Ollama that orchestrates multi-step workflows, analyzes datasets, and generates visual reports, without sending your data to the cloud.

A complete guide to Claude Code plugins. Discover how to install extensions, choose between Skills and MCPs, and build a custom session logger from scratch.

Learn how to insert signatures in Excel using images, drawing, text, and digital certificates. This guide covers signature lines, anchoring and protection options, and fixes for common signature issues.

Learn how to use Excel Format Painter to copy formatting quickly, apply it across cells and sheets, and avoid common mistakes.

Run Qwen3-Coder-Next locally on an RTX 3090 with llama.cpp, then vibe code a complete analytics dashboard in minutes using Qwen Code CLI.

Learn how to run a top open-source model locally with llama.cpp, connect it to the Kimi CLI, and one-shot an interactive game using vibe coding.

Learn how to create dependent drop-down lists in Excel using named ranges and dynamic arrays, fix common problems, best practices, and build error-free lists.

What if real-time AI voice conversations felt natural, interruptible, and genuinely human? Learn how to run NVIDIA PersonaPlex locally and experience true full-duplex conversational AI.

Learn how to list your local and remote Git branches and filter them using git branch. Master troubleshooting with git fetch, git checkout, and git prune.