How to build a calendar notification bot

Missed deadlines, forgotten meetings, or late reminders — they happen. But what if your Linux machine could keep track of your calendar and automatically remind you of everything important? In this practical project, I am going to teach you how to build a calendar notification bot that runs right from your terminal or background system.
Using tools like cron, notify-send, at, and cal, I’ll tell you how to build a Bash (or Python-enhanced) bot that reads your events and sends smart, timely notifications. Whether it’s a pop-up on your desktop, a message in your terminal, or even an email or Telegram ping — your bot will become your personal assistant.
I’m also going to teach you how to:
• Parse calendar data from .ics files, Google Calendar exports, or plain text
• Set custom reminders minutes, hours, or days before an event
• Display pop-ups, send terminal messages, or even integrate voice alerts
• Schedule recurring reminders using cron or one-time alerts with at
• Add events with a CLI form and organize them by category
For extra flair, you can integrate APIs, sync across devices, or display your agenda in a dashboard.
This project is perfect for students, freelancers, remote workers, or anyone who wants to ditch dependency on cloud-based calendar apps and use Linux for full control of their time.
By the end, you’ll have your own lightweight, local-first notification system that keeps you on track — quietly and reliably in the background.