nSuns is a user on Reddit that shared a popular weekly linear progression variation of 5/3/1 a few years ago. Key principles carried over from 5/3/1 include hitting the main lift of the day for a set of 5 reps, a set of 3 reps, and then a set of 1 rep, as well as the notion of using 90% of an athlete's 1RM as a TM or 'training max' and calculating all main lifts as a % of the TM.