Please STOP Building CRUD Projects (Common Dev Mistake)

Highlights

• Building repetitive CRUD applications limits developer growth once foundational skills are mastered.

• Refactoring existing projects to be production-ready teaches security, performance, testing, and observability.

• Automating tests with tools like GitHub Actions prevents the unreliable practice of manual click-testing.

• Building complex, real-world tools from scratch transforms a developer into an engineer.

• Reading public post-mortem reports from companies like Cloudflare and GitHub exposes common failure points and system behaviors.

Timeline

1. 00:00 - 01:15

   Limitations of CRUD-focused development

   Developers often stagnate by repeatedly building functionally identical projects like blogs or stores under different names. While CRUD proficiency is a mandatory baseline for all software, continuing to build only these types of applications prevents access to more advanced engineering concepts.

   • Repetitive CRUD project creation hinders professional growth.
   • Foundational CRUD skills are necessary but insufficient for career advancement.
2. 01:15 - 03:44

   Making existing projects production-ready

   Refining an existing project to handle real-world scenarios forces the implementation of advanced features like load balancing, database indexing, and rate limiting. Security involves proactively testing for flaws, such as input manipulation or payment logic vulnerabilities. Performance testing requires simulating high traffic loads to identify breaking points.

   • Production-ready applications prioritize security, performance, testing, and observability.
   • Automated workflows with GitHub Actions replace unreliable manual testing.
   • Observability requires implementing logging and metrics to identify issues during downtime.
3. 03:44 - 04:23

   Building complex systems

   Constructing complex applications without pre-existing source code forces developers to understand underlying architectural requirements. This hands-on process requires problem-solving rather than following standard tutorials, directly contributing to engineering expertise.

   • Recreating daily-use tools from scratch bridges the gap between developer and engineer.
   • Platforms like CodeCrafters provide roadmaps for building complex, real-world tools.
4. 04:23 - 05:37

   Learning from post-mortem reports

   Major tech firms publish post-mortem documentation detailing incidents where systems failed. Studying these reports reveals how minor oversights or specific code changes lead to massive outages, offering practical lessons in system stability and incident management.

   • Post-mortem reports detail the causes, impacts, and solutions for major technical outages.
   • Reviewing one post-mortem report per week provides insight into big-tech operational failures.