When i first do the proxmox install for zfs raidz1 with my 2 ssds, i get a pool called rpool which cant store vm disks. I need to make it store vm disks.

in order to do that, you go to /etc/pve/storage.cfg, and add in this:

zfspool: mystoragename
        pool rpool
        content images,rootdir
        nodes mynodename
        sparse 0