I put together an updated video guide showcasing the faster GRIN miner on Windows & Linux (smOS) for Nvidia & AMD + How to Buy & Sell GRIN + How to turn your mined GRIN into BTC (if desired)
https://www.youtube.com/watch?v=c2qDOF-4M5Q
https://i.imgur.com/pmQaQNRm.jpg

I also put together an updated written guide on How To Mine Grin Coin on Windows & Linux (smOS) + BST GRIN
http://i.imgur.com/FryV5ZOl.gif