Worked on the Tietokilta/web repository to improve notification consistency by centralizing the Toaster component within the main layout. This architectural change involved moving the Toaster from the invoice generator, which eliminated redundant imports and configurations, thereby simplifying module boundaries and reducing maintenance overhead. The update ensures that notifications are displayed uniformly across the application, making future enhancements to toast management more straightforward. The work was implemented using JavaScript and TypeScript, leveraging frontend development skills with Next.js and React. No bugs were fixed during this period, with the focus placed entirely on delivering this feature and improving the codebase structure.