Whilest the folks that have contributed to Mealie, a recipe and meal manager, have done a great job, I've always stumbled over the way you're able to plan recipes in it. I've set-up a native Home Assistant add-on, allowing you see an overview of the planned recipes or plan one with the flick of button.
Good catch, just added that briefly. The official integration extends the native calendar to view what is already planned, but it lacks in planning/rescheduling easily.
I've attempted to add an easy interface in the sidebar so you can actually manage and add meals with two clicks at most!
The term add-on was replaced months ago. Your install instructions refer to the Add-on page and the Add-on store to install this project, neither of which exist.
Perhaps some editing is in order to prevent you from getting support calls from the new users that might want to try your software.