“The most practical secure-coding reference that exists - concrete, actionable guidance per vulnerability class, not a wall of theory.”
A curated map of build-your-own-database/shell/Docker/etc. tutorials - the fastest way to actually understand a technology is still to rebuild a small version of it yourself.
Where build-your-own-x fits, based on its real tags and topics.
git clone https://github.com/codecrafters-io/build-your-own-x.gitSee the repository's README for language-specific setup steps.
[](https://codecrafters.io/github-banner)
Build your own <insert-technology-here>
This repository is a compilation of well-written, step-by-step guides for re-creating our favorite technologies from scratch.
Category: 📚 Learning Resources
Difficulty: Intermediate
Part of: Learning Resources
“The most practical secure-coding reference that exists - concrete, actionable guidance per vulnerability class, not a wall of theory.”
“The most widely used free resource for learning system design - the interview Q&A section alone is worth the read for anyone job-hunting.”
“A deliberately vulnerable web app for practicing security testing - the most effective way to actually understand OWASP Top 10 vulnerabilities is to exploit them yourself, safely.”
“Less a library now than a set of guides for rolling your own auth correctly - genuinely valuable for understanding what auth libraries are doing under the hood.”
“A genuinely free, complete curriculum from first line of HTML through backend development and certification - one of the best on-ramps into the field.”
“The visual "what should I learn next" map behind roadmap.sh - a fast way to see the full shape of a role before diving into any one topic.”
“The definitive directory of self-hostable software - the first stop before assuming you need to pay for a SaaS subscription for a common tool.”
“A continuously updated map of the generative AI ecosystem - genuinely useful for orienting yourself in a space that changes every few weeks.”
“A collection of real, working LLM application examples with actual code - more useful for learning by example than most tutorials that stop at a toy demo.”
The Postgres development platform. Supabase gives you a dedicated Postgres database to build your web, mobile, and AI applications.
“A genuinely open-source Firebase alternative - real Postgres underneath, with auth, storage, and realtime built in rather than a proprietary database.”
“The industry-standard container orchestrator - not always necessary at small scale, but the default assumption for any serious cloud-native platform team.”
“The most capable open-source relational database available - strong standards compliance, extensions for nearly everything (including full-text search and vectors), and a default choice for good reason.”
“Unifies dozens of LLM providers behind a single API, making model switching almost effortless in production.”
“The standard library for working with open-weight models - thousands of pretrained models are one line of code away.”
“The modern default frontend build tool - native ESM in dev means a dev server that starts and reloads almost instantly, even on large apps.”