To present your custom module data on the Odoo website and create a block for easy integration, you can follow these steps. It involves using Odoo's Website Builder and extending it to display your custom module's data dynamically.

Here’s a step-by-step guide to achieve that:

1. Create a Custom Controller

You need to create a custom controller to fetch your custom module data and pass it to the website template.

Example:

Let's assume your custom module is called my_custom_module and you want to display a list of products or records from this module on your website.

• First, create a Python controller in your custom module. This will handle the request and pass data to the website.

from odoo import http
from odoo.http import request

class MyCustomModuleController(http.Controller):

    @http.route('/my_custom_module', auth='public', website=True)
    def index(self, **kw):
        # Fetch data from your custom module
        records = request.env['my.custom.model'].search([])  # Replace with your model name
        
        # Render a template with the fetched records
        return request.render('my_custom_module.template_id', {
            'records': records,
        })

This will create a URL (/my_custom_module) where your custom module data will be displayed.

2. Create a Website Template

Next, you need to create a template in the views folder of your module. This template will display the data passed from the controller.

Example Template (views/website_template.xml):

<odoo>
    <template id="template_id" name="Custom Module Template">
        <div class="custom-module-block">
            <h2>My Custom Data</h2>
            <t t-foreach="records" t-as="record">
                <div class="record">
                    <h3><t t-esc="record.name"/></h3> <!-- Replace with your model's field -->
                    <p><t t-esc="record.description"/></p> <!-- Replace with your model's field -->
                </div>
            </t>
        </div>
    </template>
</odoo>

In this template:

• We're using <t t-foreach="records" t-as="record"> to loop through the records passed from the controller.
• Replace record.name and record.description with the actual fields from your model.

3. Add the Block to the Website

Once the controller and template are set up, you can create a block for this data on your website.

• Go to Website → Pages → Add New Page or edit an existing page.
• In the page editor, you can add your new custom block using Custom HTML or Snippet options.
• In the editor, add the block with a dynamic URL (e.g., /my_custom_module) so it pulls the data from the controller template.

Hey, i think your answer is here: https://www.odoo.com/documentation/18.0/fr/developer/howtos/website_themes/building_blocks.html