Convert a Linux VPS to OpenBSD

[Étienne]

Hello there,

This is a bit of a long shot, but I'm trying my luck: There used to be a 
community thread on Scaleway's documentation website that explained how 
to convert a Linux instance to an OpenBSD instance, because no OpenBSD 
ISO image was available in their console. It seems that this doc 
disappeared as their documentation section has changed format, and I 
can't find it on archive.org either. I would like to try and apply the 
same process at another VPS provider. Does anyone remember or know how 
this was done, and would they be kind enough to summarise it here, please?

Thanks!

--
Étienne