You need to do the following.
1. Using the "advanced" theme of Yii2 and Bootstrap CSS (preferably) create a simple web application that will have a front-end page with 2 links in the menu: "Home" and "Login".
2. Create the Login page. Only users with admin privileges can log in.
3. Create the admin page that will show a list of categories. Each category may have 1 parent or no parent, and have 0 or any number of child categories. It must allow edit these dependencies.
4. The home page must diplay the list of categories as clickable links. A click on a link will open a list of clickable child categories.
In your bid write how you will organize the management of categories dependencies. Max bid is $20.
Hello, I experienced with Yii2. I will be use the Adjency List to create the category hirarchy. If my proposal is interesting for you, please, mail me and we can discuss the datails. Sincerely, Anton.