Odoo is Free software and reliable and advanced enough for Toyota to use it in their enterprise management. Odoo has several features which could be of great use to those wishing to start a new web business, including modules for shopping, blogging, etc.
Here is a demo:
I hope that Scaleway could support Odoo Community Edition (which is Free software) as an installable image. Odoo already can be installed as a Docker image. Odoo 12 will be available later in 2018.
Here are the installation notes: