Opening Repertoire Idea

So, I was thinking, maybe I could make complete opening repertoires for players to use otb and online. I would cover all of the lines you would need to know. I would make them private studies, and charge something like $9.99 for a complete repertoire on an opening. Who would be interested? If you aren't, no need to say anything in this forum.

I'm interested but unwilling. There is a fundamental weakness inherent in this process.

First reach IM / GM level, and then convince players.

Have you considered publishing on chessable? This is basically their entire business model.