Step 1: Set Up a Supabase Account and Project

• Create a free account on the Supabase website.
• Once logged in, create a new project. This will set up your Supabase instance.
• Take note of your project's API keys and URL, which you will need for authentication later.

Step 2: Create the Database Schema

• Navigate to the “Table Editor” in the Supabase dashboard.
• Create a new table to store presentation data. For instance, you might name it "presentations".
• Add columns to the "presentations" table, such as “id” (UUID), “title” (text), “content” (text), and “created\_at” (timestamp).
• Save the table schema.

Step 3: Configure Authentication

• Head over to the “Authentication” section in the Supabase dashboard.
• Configure the authentication settings to enable sign-ups, email confirmations, or other auth methods based on your requirements.
• Create an authentication provider (e.g., email and password) and note the configuration details.

Step 4: Set Up Client-side Application

• Create a new frontend project using your preferred framework (React, Vue, Angular, etc.).
• Install the Supabase JavaScript client library in your project:
  npm install @supabase/supabase-js
• Initialize Supabase in your application by importing and configuring the client:
  import { createClient } from '@supabase/supabase-js';
const supabaseUrl = 'https://xyzcompany.supabase.co';
const supabaseAnonKey = 'your-anon-key';
const supabase = createClient(supabaseUrl, supabaseAnonKey);
• Add a basic authentication form for signing up and logging in users.

Step 5: CRUD Operations for Presentations

• Create functions for creating, reading, updating, and deleting presentations using Supabase's client methods.

• Example: Function to create a new presentation

  async function createPresentation(title, content) {
const { data, error } = await supabase
.from('presentations')
.insert([ { title: title, content: content }, ]);
return { data, error }; }

  Similarly, write functions for reading, updating, and deleting presentations.

Step 6: Build Presentation Mode UI

• Create a new UI component for the presentation mode, which will take the data from the "presentations" table and display it in a full-screen view.
• Use Supabase's real-time capabilities to automatically update the presentation view when data changes. This can be done using Supabase's subscription feature:
  supabase
.from('presentations')
.on('UPDATE', payload => {
console.log('Change received!', payload);
// Update the presentation mode UI here
})
.subscribe();

Step 7: Deploy and Test

• Deploy your frontend application using Vercel, Netlify, or any other hosting service.
• Test the entire flow to ensure that users can create, read, update, and delete presentations and that all changes reflect in real-time in the presentation mode.

Step 8: Implement Additional Features

• Enhance the presentation mode UI with additional features like slide transitions, presenter notes, and audience interaction tools.
• Add security rules in Supabase to ensure that data is secure and only accessible by authorized users.
• Consider using Supabase's storage feature for storing images or other media files used in the presentations.

Conclusion

• By following these steps, you should have a fully functional presentation mode application using Supabase.
• Explore Supabase documentation for advanced features and optimizations as your application grows.