Great stuff for avid gardeners and some good tips for gareners in areas where there are dry spells even up north.
That variant of drip irrigation you mentioned. The pvc pipe using threaded wicking action. The thread or line you mentioned I assume wasn’t nylon. Did that thread or line go to the depth of (2’ down) of the raised bed or go down just a few inches ? Were these pipes placed north to south and placed on the walls creating the raised bed lengthwise or east to west across the raised bed ? And were a number of these pipes installed equalling each row of seed ?
I re-read your piece about using the threaded line and understand for your vine crops (beans etc) set the pipe on your sun screen which is above the raised bed . The threaded line would also train the vine to grow on the line while irrigating it and it was stuck in the ground a few inches deep.