1. Head over to the Supabase website.
2. Sign up or log in if you already have an account.
3. Click on "New Project" and fill in the details like project name, organization, and database password.
4. Once you're done, you'll land on your project's dashboard.

1. In the project dashboard, find the "Storage" tab on the left sidebar.
2. Click "Create a new bucket."
3. Give your bucket a name. This name will be used in your app to target this specific storage.
4. Optionally, set the bucket’s privacy settings (public or private). Public buckets can be accessed without authentication, while private ones need user authentication.

1. In your app directory, install the Supabase client library using npm or yarn:
   ```bash
   npm install @supabase/supabase-js
   ```
   or
   ```bash
   yarn add @supabase/supabase-js
   ```

2. Import and configure the client in your app:
   ```javascript
   import { createClient } from '@supabase/supabase-js'

   const supabaseUrl = 'https://xyzcompany.supabase.co'
   const supabaseKey = 'your-anon-key'
   const supabase = createClient(supabaseUrl, supabaseKey)
   ```

1. Create a file input element in your HTML:
   ```html

   Upload \`\`\`

2. Add an event listener in your JS file to handle file selection and uploading:
   ```javascript
   const fileInput = document.getElementById('fileInput');

   async function uploadFile() {
   const file = fileInput.files[0];
   if (file) {
   const { data, error } = await supabase
   .storage
   .from('your-bucket-name') // Replace with your specific bucket name
   .upload(public/${file.name}, file);
   
   if (error) {
   console.error('Error uploading file:', error);
   } else {
   console.log('File uploaded successfully:', data);
   }
   }
   }
   ```

1. Go back to your Supabase dashboard.
2. Navigate to "Authentication" and then "Policies."
3. Add a policy to allow file read/write permissions if your bucket is set to private:
   ```sql
   CREATE POLICY "allow file uploads" ON storage.objects FOR INSERT
   USING (auth.role() = 'authenticated');
   ```

1. After successfully uploading a file, check if the file exists in your Supabase storage.
2. Go to your storage bucket in the Supabase dashboard, and you should see the uploaded files listed.
3. Test accessing the uploaded file via its URL to ensure proper upload and access permissions:
   ```javascript
   const { publicURL, error } = supabase
   .storage
   .from('your-bucket-name')
   .getPublicUrl('path/to/your/file.ext')
   if (error) {
   console.error('Error fetching public URL:', error);
   } else {
   console.log('Public URL:', publicURL);
   }
   ```

This guide covers setting up Supabase storage, configuring file uploads, and verifying the uploaded files.