CAPI adds the taint node.cluster.x-k8s.io/uninitialized to all the nodes, and only removes it if the node is in the MachinePool instance list, or it's a Machine.
Karpenter creates machines that CAPI does not know about so the taint is not removed automatically.
This is a small utility meant to run as a DaemonSet on all Karpenter nodes in a CAPA cluster to remove the CAPI taints from the nodes.