Posts - Page 3

Learn how to use AI as a technical tutor: basic questions, the Feynman technique, ‘but why?’ chains, and exercises that prove real understanding.

Turn RCTF into real development prompts: rich context, iterative rounds, and response formats you can plug directly into your daily workflow.

Learn how to search in Vim with f, t, /, ?, n, N, *, # and control highlighting so you can move through code without crawling line by line.

Learn how to define Python functions with def, pass parameters, return values, and stop your code from becoming an unmaintainable copy-paste chain.

Understand once and for all the difference between ARG and ENV, ENTRYPOINT and CMD, and what HEALTHCHECK, VOLUME and EXPOSE actually do in your Dockerfiles.

A Pull Request is not just the mechanism to merge code — it's a conversation. Learn to write PRs that people actually want to review and give feedback that builds instead of blocks.

GitHub Flow strips branching down to the essentials: one stable branch, short-lived feature branches, Pull Requests for review, and deploy after every merge.

Same model, same day, thirty seconds apart — two completely different answers depending on how you frame the question. Here's the RCTF framework and why it changes everything.

A list you can't modify is just a tuple with extra steps. Learn to add, remove, and transform elements with the most important list methods — and write your first list comprehensions.

Learn to use multi-stage builds in Docker to separate the build environment from the runtime environment, with real Go and Node.js examples that shrink images from hundreds of megabytes down to a handful.

Build secure Docker images: avoid running as root, scan for vulnerabilities with Trivy, pin versions the right way, and manage secrets without baking them into your image.

Git Flow formalizes the branch prefixes you already know into a structured process: permanent main and develop branches, plus temporary branches for features, releases, and hotfixes.