Anyone building with large language models today eventually runs into the same two names: LangChain and LangGraph. They come from the same company, they're designed to work together, and they're frequently — and incorrectly — treated as competitors. This article explains what each one actually does, how they fit together, and when …

There's a particular kind of software project that doesn't just solve a problem — it defines the vocabulary everyone uses to talk about the problem afterward. LangChain is one of those projects. Since its debut in late 2022, it has quietly become the lingua franca of LLM application development: chains, agents …

A practical walkthrough of setting up a local AI development environment on Ubuntu — covering llama.cpp installation via Homebrew, running local LLMs with LangChain, fixing common Slack conflicts, Git branch management, and JupyterLab. Hard-won lessons from real terminal errors.

Installing llama.cpp via Homebrew on Ubuntu

Homebrew on Linux — Homebrew …