Setup strategy: single / multi node

Hi,
I plan to install k3s on the following nodes:

  • Raspi 3+
  • Raspi 3
  • x86_64 server 24x7
  • x86_64 server

Question:
Does it make sense to start k3s as a single node setup and migrate to a multi node cluster later?
If yes, what are the migration steps?

THX

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