I play Rocksmith 2014 regularly to practice guitar and I occasionally stream on Twitch.
I discovered Rocksniffer after I started streaming and recently I decided to create my own add-on for it.
First, I used the Discord.NET NuGet package to send song stats to a private Discord channel so I could have a simple log of every song I play.
Then I decided to take it a step further... Using EF Core I added code to send stats to my Azure SQL Server after each song ends.
Rocksmith keeps broad stats in-game (accuracy average, top streak, etc), but not for each song.
Now I have detailed stats for each song so I can better track which songs I play best (or which need a few extra plays).