https://raindev.fyi/ Interactive guides for Git, deployment, Docker, CI/CD, security, testing, dev environments, and the real-world workflows behind software. en https://raindev.fyi/guides/backend-hosting/ https://raindev.fyi/guides/backend-hosting/ Fri, 05 Jun 2026 00:00:00 GMT Why a long-running server is a different beast from a static site, and when to reach for a managed platform versus a VPS. Deploy hosting backend railway render fly vps https://raindev.fyi/guides/connecting-frontend-to-backend/ https://raindev.fyi/guides/connecting-frontend-to-backend/ Fri, 05 Jun 2026 00:00:00 GMT API URLs, CORS, HTTPS, env vars, and cookies, and why the localhost URL that worked all week dies the moment you deploy. Deploy deployment cors api https environment-variables auth https://raindev.fyi/guides/custom-domains-and-dns/ https://raindev.fyi/guides/custom-domains-and-dns/ Fri, 05 Jun 2026 00:00:00 GMT Registrars, nameservers, A and CNAME records, apex vs www, TTL, and propagation, explained without the jargon fog. Deploy dns domains registrar cname nameservers deployment https://raindev.fyi/guides/debugging-setup/ https://raindev.fyi/guides/debugging-setup/ Fri, 05 Jun 2026 00:00:00 GMT Debugging as a process, not a panic ritual: logs, devtools, the Network tab, stack traces, breakpoints, VS Code launch configs, and a checklist. Dev Setup debugging devtools logs vs-code https://raindev.fyi/guides/docker-compose/ https://raindev.fyi/guides/docker-compose/ Fri, 05 Jun 2026 00:00:00 GMT One file to start a Node API, PostgreSQL, and Redis together, with the networks, volumes, and env vars wired up. Docker docker docker-compose postgres redis https://raindev.fyi/guides/docker-debugging/ https://raindev.fyi/guides/docker-debugging/ Fri, 05 Jun 2026 00:00:00 GMT A practical survival guide for Docker problems: ps, logs, exec, inspect, rebuilding without cache, and reasoning through it built but does not work. Docker docker debugging logs troubleshooting https://raindev.fyi/guides/docker-networking/ https://raindev.fyi/guides/docker-networking/ Fri, 05 Jun 2026 00:00:00 GMT Why localhost means something different inside a container, how Compose service names work, and the API connection bugs that follow. Docker docker networking compose localhost https://raindev.fyi/guides/docker-volumes/ https://raindev.fyi/guides/docker-volumes/ Fri, 05 Jun 2026 00:00:00 GMT Why containers are disposable but your data should not be, named volumes versus bind mounts, and how to reset a database on purpose instead of by accident. Docker docker volumes postgres data https://raindev.fyi/guides/dockerizing-a-full-stack-app/ https://raindev.fyi/guides/dockerizing-a-full-stack-app/ Fri, 05 Jun 2026 00:00:00 GMT How Docker fits a real app with a frontend, a Node backend, Postgres, and Redis, and why the frontend is often Dockerized for dev but shipped as static files. Docker docker full-stack compose postgres redis https://raindev.fyi/guides/dotfiles/ https://raindev.fyi/guides/dotfiles/ Fri, 05 Jun 2026 00:00:00 GMT The dot-prefixed config files that keep a project consistent across machines: which to commit, which to keep local, and how they stop projects from rotting. Dev Setup dotfiles config gitignore editorconfig https://raindev.fyi/guides/eslint-and-prettier/ https://raindev.fyi/guides/eslint-and-prettier/ Fri, 05 Jun 2026 00:00:00 GMT The difference between a linter and a formatter, why ESLint and Prettier sometimes fight, format on save, project config, and running them in CI. Dev Setup eslint prettier linting formatting https://raindev.fyi/guides/frontend-hosting/ https://raindev.fyi/guides/frontend-hosting/ Fri, 05 Jun 2026 00:00:00 GMT What a frontend host actually does, how the beginner-friendly options compare, and how to pick one without starting a brand war. Deploy hosting cloudflare-pages vercel netlify github-pages frontend https://raindev.fyi/guides/honey-i-cloned-the-repo/ https://raindev.fyi/guides/honey-i-cloned-the-repo/ Fri, 05 Jun 2026 00:00:00 GMT How to actually get code off GitHub: git clone versus ZIP downloads, remote-tracking branches, and the difference between git pull and git fetch. Git git github clone remote workflow https://raindev.fyi/guides/images-containers-dockerfiles/ https://raindev.fyi/guides/images-containers-dockerfiles/ Fri, 05 Jun 2026 00:00:00 GMT The recipe, the snapshot, and the running instance: what an image, a container, and a Dockerfile actually are, and how docker build and docker run connect them. Docker docker images containers dockerfile https://raindev.fyi/guides/local-databases/ https://raindev.fyi/guides/local-databases/ Fri, 05 Jun 2026 00:00:00 GMT Why real apps need a local database, how to run Postgres and Redis with Docker Compose, connection strings, seeds, migrations, resets, and the bugs in between. Dev Setup postgres redis database docker-compose https://raindev.fyi/guides/node-versions/ https://raindev.fyi/guides/node-versions/ Fri, 05 Jun 2026 00:00:00 GMT Why the Node.js version matters, how to check and pin it with .nvmrc, engines, nvm, fnm, or Volta, and the bugs a mismatch causes. Dev Setup node nvm versions engines https://raindev.fyi/guides/package-managers/ https://raindev.fyi/guides/package-managers/ Fri, 05 Jun 2026 00:00:00 GMT What npm, pnpm, and Yarn actually do, the role of package.json and lockfiles, npm install versus npm ci, and why deleting a lockfile is goblin behavior. Dev Setup npm pnpm yarn lockfiles https://raindev.fyi/guides/ports-volumes-environment-variables/ https://raindev.fyi/guides/ports-volumes-environment-variables/ Fri, 05 Jun 2026 00:00:00 GMT The three Docker settings that break most beginner setups, and exactly what 3000:3000 really means. Docker docker ports volumes environment-variables https://raindev.fyi/guides/preview-vs-production-deploys/ https://raindev.fyi/guides/preview-vs-production-deploys/ Fri, 05 Jun 2026 00:00:00 GMT Branch deploys, pull-request previews, rollbacks, and the safe feature-branch-to-production workflow that keeps you from breaking the live site. Deploy deployment preview-deploys production workflow github https://raindev.fyi/guides/production-docker/ https://raindev.fyi/guides/production-docker/ Fri, 05 Jun 2026 00:00:00 GMT Multi-stage builds, smaller images, non-root users, health checks, restart policies, and secrets, and why npm run dev is not a production command. Docker docker production multi-stage security https://raindev.fyi/guides/project-scripts/ https://raindev.fyi/guides/project-scripts/ Fri, 05 Jun 2026 00:00:00 GMT The scripts block in package.json, the standard scripts every project should have, and running frontend and backend together. Dev Setup npm-scripts package-json tooling https://raindev.fyi/guides/static-sites-vs-servers/ https://raindev.fyi/guides/static-sites-vs-servers/ Fri, 05 Jun 2026 00:00:00 GMT Static builds, SPAs, SSR apps, backend APIs, full-stack apps, and databases, and why each one needs a different kind of home. Deploy deployment hosting static server ssr architecture https://raindev.fyi/guides/terminal-without-fear/ https://raindev.fyi/guides/terminal-without-fear/ Fri, 05 Jun 2026 00:00:00 GMT The handful of terminal commands you actually use day to day, plus paths and flags, without the become-a-Linux-wizard detour. Dev Setup terminal cli shell command-line https://raindev.fyi/guides/vs-code-setup/ https://raindev.fyi/guides/vs-code-setup/ Fri, 05 Jun 2026 00:00:00 GMT Setting up VS Code for real projects: the extensions worth installing, format on save, and why user settings and workspace settings are different. Dev Setup vs-code editor extensions settings https://raindev.fyi/guides/your-first-dockerfile/ https://raindev.fyi/guides/your-first-dockerfile/ Fri, 05 Jun 2026 00:00:00 GMT A real working Dockerfile for a Node and Express app, every instruction explained, plus .dockerignore and the node_modules trap. Docker docker dockerfile node express https://raindev.fyi/guides/what-ci-cd-actually-does/ https://raindev.fyi/guides/what-ci-cd-actually-does/ Fri, 01 Mar 2024 00:00:00 GMT Learn what CI/CD means, what should happen before code gets merged or deployed, and how to set up a basic pipeline with GitHub Actions. CI/CD ci-cd github-actions automation testing deployment https://raindev.fyi/guides/docker-without-buzzwords/ https://raindev.fyi/guides/docker-without-buzzwords/ Thu, 15 Feb 2024 00:00:00 GMT Understand what Docker actually is and does (images, containers, Dockerfiles, ports, volumes, and Compose) without the enterprise hype. Docker docker containers dockerfile docker-compose devops https://raindev.fyi/guides/environment-variables/ https://raindev.fyi/guides/environment-variables/ Thu, 01 Feb 2024 00:00:00 GMT Learn what environment variables are, where they live, how to use them safely, and how not to accidentally leak your secrets. Dev Setup environment-variables security dotenv secrets config https://raindev.fyi/guides/localhost-to-production/ https://raindev.fyi/guides/localhost-to-production/ Sat, 20 Jan 2024 00:00:00 GMT Understand the full journey from your local dev server to a live domain: DNS, hosting, builds, and everything in between. Deploy deployment hosting dns vercel netlify production https://raindev.fyi/guides/git-beyond-add-commit-push/ https://raindev.fyi/guides/git-beyond-add-commit-push/ Mon, 15 Jan 2024 00:00:00 GMT Learn the actual Git workflow behind branches, commits, pull requests, and merge conflicts, the way professional teams use it. Git git branches pull-requests merge workflow