The latest articles on DEV Community by Yuvraj Kunwar (@yuvkun10). https://dev.to/yuvkun10 https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F3865647%2Fe4d63306-e3ac-4afb-bd75-3dd0aeb29d1f.png https://dev.to/yuvkun10 en Yuvraj Kunwar Tue, 07 Apr 2026 10:49:36 +0000 https://dev.to/yuvkun10/i-turned-my-university-java-project-into-an-open-source-auth-toolkit-2ghg https://dev.to/yuvkun10/i-turned-my-university-java-project-into-an-open-source-auth-toolkit-2ghg <p>I was jobless and needed to build my portfolio. Instead of starting from scratch, I took my university LMS assignment and transformed it into something other developers could actually use.</p> <h2> The Problem </h2> <p>My original project was a basic Java CLI for a class. It worked, but it was not something anyone would star on GitHub.</p> <h2> The Transformation </h2> <p>I restructured it into EduAuth, a lightweight authentication and enrollment CLI that teaches auth patterns while being genuinely useful.</p> <h3> What I Added </h3> <ul> <li>Proper password hashing with SHA-256 and per-user salt generation</li> <li>UUID based session tokens with configurable timeout</li> <li>Role based access control (STUDENT, INSTRUCTOR, ADMIN)</li> <li>Command pattern architecture for clean CLI design</li> <li>File based JSON persistence</li> <li>20+ JUnit 5 tests</li> <li>Maven build with executable JAR output</li> </ul> <h3> What I Learned </h3> <ul> <li>Refactoring existing code taught me more about architecture than building from scratch</li> <li>Writing JUnit tests after the fact exposed design flaws I did not notice before</li> <li>Documentation and a clear README matter as much as the code for open source adoption</li> </ul> <h2> Try It Out </h2> <p>github.com/yuvkun10/edutech-lms-cli</p> <p>If you are a student learning Java auth patterns, or you need a simple starter template for CLI authentication, give it a look. Stars and feedback are both welcome.</p> java opensource authentication beginners