📰 Dev.to · Javi Palacios

Learn how Git hooks work, which ones actually matter, and how to share them with the team using Husky, pre-commit, or lefthook.

Learn what Git submodules are, how to add, clone, update, and remove them, and when to avoid creating a tiny .gitmodules-shaped monster.

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 f

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

How to name branches so your team understands at a glance what they contain, which ticket they map to, and when it's safe to delete them.

Learn how Docker's layer caching system works, how to order Dockerfile instructions for fast builds, and which base image to choose for lean, efficient images.

Atomic commits, messages that explain the why, and the Conventional Commits standard: the difference between a history that documents and one that just takes up

Conflict markers make sense once you understand the three-way merge: what HEAD means, what the separator does, and how to resolve conflicts cleanly with or with

Who broke everything? git blame tells you line by line, and when history gets messy, git log has options you probably did not know to trace code even after it c

Learn what a Dockerfile is, how the layered build process works, the basic instructions FROM, RUN, COPY, CMD and EXPOSE, and build your first custom image.

Learn how Docker network isolation works, how to publish ports with -p, inspect network configuration, and run multiple containers on the same host without conf

Learn to use git bisect to find the exact commit that introduced a bug using binary search — and how to automate it so Git does all the work while you grab a co

Learn to use git reflog to recover deleted commits, lost branches, and any change that seemed gone forever after a reset or a Git mistake.

Learn to open shells inside containers, run commands in live containers with docker exec, copy files with docker cp, and know when to use interactive vs. detach

Learn how to use git cherry-pick to apply specific commits from one branch to another—perfect for backporting hotfixes, rescuing buried work, and surgical histo

Learn how to use git rebase -i to reorder, combine, rename, and delete commits before integrating your work. Take full control of your history, commit by commit

What exactly is a Docker image, how are layers stacked, and what happens to a container when it stops? The image-container relationship is the mental model ever

Install Docker on Linux, macOS, or Windows and run your first container. Docker's architecture, the image vs container distinction, and the essential commands t

Learn what rebase is in Git, when to use it instead of merge, how to resolve conflicts during the process, and the golden rule you must never break.

In How to recover files after modifying them thanks to Git we already learned what to do in some...

Understand the problem containers solve before touching a single command. The evolution of software deployment: from physical servers to virtual machines to con

Learn to send and receive changes in Git with git push and git fetch. Understand the difference between fetch and pull, how to use --force-with-lease, and why g

Learn how to create your first repository on GitHub step by step. Discover how to set up a new project, add files, and make your first commit.

Git is a decentralized service, so you won't find the typical client-server architecture. Today you will learn how Git works with its remote nodes.