ZippyHR is a web human resources admin platform. I created 100% of it myself - frontend (using SASS, Bootstrap, jQuery and React), and the backend using Laravel 6.x, MySQL (on a Google Cloud Platform Cloud SQL instance) and I performed the VPS setup so it can run on Google Cloud Platform.
It currently helps keep track of employee time off and sickless absenses (the complete request-approval process, vacation day accrual, etc), has employee evaluations, departments (with specific permissions for department managers) and a lot more.