Dumbbell complex circuit blast

I'm a beginner with one pair of adjustable dumbbells at home and want a 22-minute HIIT conditioning session built from dumbbell complexes. Warm up for 4 minutes with light jogging-in-place, bodyweight squats, and arm swings. Then give me a circuit of 3 movements done back-to-back without putting the dumbbells down: dumbbell thruster, single-arm dumbbell snatch (alternating), and renegade row. Use a work/rest structure of 40 seconds work, 20 seconds rest per movement, complete the 3 as a round, then rest 60 seconds between rounds; do 5 rounds. Use a light-to-moderate weight I can move with good form when fatigued, and have me aim for an effort where my heart rate climbs into roughly 80-90% of max during work intervals. Give a regression for each move if my form breaks down, and finish with a 2-minute cool-down walk and stretch.