This is probably a problem with me not understanding how to use SSH keys on windows.
If so, please be gentle and point me in the correct direction.

Expected Behaviour

Following the instructions on Windows 10 works

Current Behaviour

I generate an SSH key using PuttyGen
(This is where I think I'm going wrong. I suspect the key isn't in the right place when ssh runs)
Copy the key into the config file and run multipass
Try and ssh into the running instance

c:\faasd>ssh ubuntu@172.23.19.201
key_load_public: invalid format
The authenticity of host '172.23.19.201 (172.23.19.201)' can't be established.
ECDSA key fingerprint is SHA256:aY6yXLCDk8wSMe6eAJbj5P1fTi9mKCeNBuEzBrlBFJs.
Are you sure you want to continue connecting (yes/no)? yes

Your Environment

• OS and architecture:
  Windows 10

• Versions:
  Latest