This is my first time with installing Devuan or Debian with using software RAID. I am not sure if I did this correctly, that is why it says this is not a tutorial in the title of this upload, as I could have made a mistake and wouldn't know. This is just recording of the process as I did it, you do with it what you please. This video is uploaded with the hope it will be useful, but without any implied fitness for any particular purpose or use-case.

file details
WebM video AV1 1280x720@6hz variable framerate, no audio