Weeds, alas!
The weeds came back in full force. It only took about two hours to get them out, but it still wasn't easy. I am about to install another weed barrier, even though it is marginally effective. The vines have been pruned correctly and are starting to bud quickly. I will hopefully get a large crop this year. I already see lots of berry clusters.
I will take more pics with a better lens next time.