Alex Howells

Sending me communication via e-mail...

All mail should be sent to me here.

Letting me SSH into your infrastructure...

If you need to give me access to any system via SSH then my public keys are listed here and you can select between ED25519 or 4096-bit RSA keys. These are listed in order of suggested preference.

All my keys are wrapped together authorized_keys for easy download

Just drop the contents of that file into /home/username/.ssh/authorized_keys and all should be well.