It’s archaic english. So yes, I think people will think you’re weird. But maybe if you start using it with your dutch friends/colleagues in english-speaking contexts, you can slowly introduce it into common usage in your community. Might be cool.
Also don’t forget “ereyesterday” for the day before yesterday.
A lot of “hardware raid” is just a separate controller doing software raid. I thought I lost access to a bunch of data when my raid controller died, before I realized that I could just plug the disks directly into the computer and mount them with mdadm. But yes, hardware raid seems a bit pointless nowadays.