I am going to write a simple appointment schduling application. Target demographics will be people familiar with the command line. It also has a web interface, that allows to display dates and available time slots, etc.
We will write this in Go, we will write a small server that keep track of the currently scheduled appointments for a user in an sqlite database. A separate component, a cli tool will be able to talk to the server via an HTTP API or directly to the sqlite3 database for speed.
let's start with a basic scaffold
cali/
├── cmd/
│ ├── calid/
│ │ └── main.go # Server daemon entry point
│ └── cali/
│ └── main.go # CLI tool entry point
├── internal/
│ ├── api/
│ │ ├── handlers.go # HTTP handlers
│ │ └── routes.go # Route definitions
│ ├── db/
│ │ ├── schema.sql # Database schema
│ │ └── db.go # Database operations
│ ├── models/
│ │ └── appointment.go # Data models
│ └── config/
│ └── config.go # Configuration handling
├── web/
│ ├── templates/
│ │ └── index.html # Web interface templates
│ └── static/
│ ├── css/
│ └── js/
├── go.mod
└── README.md