Would you mind sharing (again?) your drip irrigation and controller set up? I used gravity feed drip for several years in my small scale back yard garden and greenhouse. I broke it down last year when my schedule became such that I didn’t have to let it run on autopilot with timers all the time.
Our controller is a Netro 6-staion, carried by Amazon. You will need a manifold with a 24-volt water valve (Lowes) for each line. I have a pressure regulator feeding the manifold and disconnects on the supply to the manifold and on each valve outlet for draining in the fall.
My waterlines to each bed are 3/4” Schedule 40 pvc, run underground with a riser and manual valve at each bed.
Have fun!