diff --git a/main.tf b/main.tf
index c34eaf6..15ac841 100644
--- a/main.tf
+++ b/main.tf
@@ -25,41 +25,42 @@ locals {
     # ansible role that assigns roles based on wether or not 'master' is in the
     # name.
     "k8s-master" = {
-      base-image = var.ubuntu-ami
+      base-image   = var.ubuntu-ami
       aws-ec2-type = var.t2-medium-4gib-2vcpu
-      subnet-ids = local.k8s-subnets-ids
-      num = 1
+      subnet-ids   = local.k8s-subnets-ids
+      num          = 1
     },
     "k8s-wrkr" = {
-      base-image = var.ubuntu-ami
+      base-image   = var.ubuntu-ami
       aws-ec2-type = var.c5a-xlarge-amd-8gib-4vcpu
-      subnet-ids = local.k8s-subnets-ids
-      disk-size = 32
-      num = 2
+      subnet-ids   = local.k8s-subnets-ids
+      disk-size    = 32
+      num          = 2
     },
-    "test" = {
-      base-image = var.ubuntu-ami
-      aws-ec2-type = var.t2-micro-1gib-1vcpu
+    "dev" = {
+      base-image   = var.ubuntu-ami
+      aws-ec2-type = var.t3a-medium-amd-4gib-2vcpu
       # subnet-ids = [module.aws-network-from-scratch.subnet.id]
-      subnet-ids = [module.aws-network-existing.subnet-by-name["subnet_2"].id]
-      num = 0
+      subnet-ids   = [module.aws-network-existing.subnet-by-name["subnet_4"].id]
+      disk-size    = 32
+      num          = 1
     },
     "nfs" = {
-      base-image = var.ubuntu-ami
-      aws-ec2-type = var.t3a-medium-amd-4gib-2vcpu
-      # subnet-ids = [module.aws-network-from-scratch.subnet.id]
-      subnet-ids = [module.aws-network-existing.subnet-by-name["subnet_4"].id]
-      num = 1
-      num-disks = 1
+      base-image    = var.ubuntu-ami
+      aws-ec2-type  = var.t3a-medium-amd-4gib-2vcpu
+      # subnet-ids  = [module.aws-network-from-scratch.subnet.id]
+      subnet-ids    = [module.aws-network-existing.subnet-by-name["subnet_4"].id]
+      num           = 1
+      num-disks     = 1
       zfs-disk-size = 10
     },
     "proxy" = {
-      base-image = var.ubuntu-ami
+      base-image   = var.ubuntu-ami
       aws-ec2-type = var.t2-micro-1gib-1vcpu
       # subnet-ids = [module.aws-network-from-scratch.subnet.id]
-      subnet-ids = [module.aws-network-existing.subnet-by-name["subnet_4"].id]
-      private-ips = [var.aws-proxy-private-ip]
-      num = 1
+      subnet-ids   = [module.aws-network-existing.subnet-by-name["subnet_4"].id]
+      private-ips  = [var.aws-proxy-private-ip]
+      num          = 1
     },
   }
 
@@ -79,11 +80,21 @@ locals {
       disk-group    = "zfs-64g"
       # TODO also make sure that get drive letters or whetever still works. did
       # it ever work?
-      drive-letters = ["g"]
+      # TODO We need to have a map of drive letters to device path in linux.
+      # This gets a little more complicated becuase the t2 instances map to
+      # /dev/xvdg while the t3a instance types map to /dev/nvme0n1 where 0 is
+      # the nth drive connected. The nth drive does not seem to map to a drive
+      # letter, ie. drive letter "f" does not map to 6, the nth drive simply
+      # increments by 1 for each drive attached regardless of the drive letter
+      # set.
+      drive-letters = ["g", "h", "i"]
     },
   ]
 
   install-qemu-agent = false
+  # TODO remove after nfs mounts are figured out.
+  # nfs_home_dir_mount = true
+  # nfs_server = 
 }
 
 ################################################################################
diff --git a/variables.tf b/variables.tf
index fbfe661..4620963 100644
--- a/variables.tf
+++ b/variables.tf
@@ -223,16 +223,16 @@ variable "c5a-xlarge-amd-8gib-4vcpu" {
 
 variable "ubuntu-img" {
   default     = "https://cloud-images.ubuntu.com/releases/focal/release/ubuntu-20.04-server-cloudimg-amd64-disk-kvm.img"
-  description = "The libvirt image tp use for Ubuntu."
+  description = "The libvirt image to use for Ubuntu."
 }
 
 variable "centos7-img" {
   # Latest as of 2021-12-06.
   default = "https://cloud.centos.org/centos/7/images/CentOS-7-x86_64-GenericCloud-2111.qcow2"
-  description = "The libvirt image tp use for CentOS 7."
+  description = "The libvirt image to use for CentOS 7."
 }
 
 variable "centos8-img" {
   default = "https://cloud.centos.org/centos/8/x86_64/images/CentOS-8-GenericCloud-8.4.2105-20210603.0.x86_64.qcow2"
-  description = "The libvirt image tp use for CentOS 8."
+  description = "The libvirt image to use for CentOS 8."
 }