What Database and Security Setup Should I Use for a Small First Project?

HTML alone isn’t enough to build this kind of application; it only describes the page structure. You’ll also need programming logic, such as JavaScript in the browser and possibly a server-side language. For a single-device project, a local database such as SQLite may be a practical starting point, but you still need to plan regular backups and recovery testing. If the project later becomes shared or moves online, you’ll need a server-side application, controlled database access, authentication, authorization, and encrypted connections.

Before choosing a database, decide where the business logic will run. In a traditional client/server design, the browser talks to your application server, and the server validates requests before accessing the database. This generally gives you better control over permissions and data validation. Systems where the browser connects more directly to a hosted database can work, but they require carefully configured database permissions because users may otherwise bypass parts of your intended logic.

Be very cautious about deploying an unfinished tool for someone’s employer. Authentication, authorization, privacy requirements, auditing, and backups are much harder to get right than they first appear. A mistake could expose company information or cause important records to be lost. It would be safer to build a prototype with sample data first, and have the employer approve and take responsibility for using it. If it becomes a real workplace system, the company should be involved and should fund its development, security review, hosting, and maintenance.