Upgrade Joomla 3 Component to v6

I have a bespoke Joomla 3 component that now needs to run smoothly on Joomla 6. The upgrade is more than a version bump: every layer of the extension—admin interface, site-side views, and its database calls—must be adjusted to the current Joomla framework and PHP standards... (Budget: €30 - €250 EUR, Jobs: Backend Development, CSS, Frontend Development, Joomla, MVC, MySQL, PHP, Web Development)