induction is not about the buttons, induction is the method of heat transfer between the cook top and your pots. Just look for one wiht better phyiscal buttons that are not digital-ish. Miele and Bosch are usually safe bets.

theres a reason you wont find many L2 "software" its extremely inefficient and kills processors. Switches use purpose built hardware to be able to hit millions of I/Os without using a lot of power because of this. If you are trying to use a generic x86 processor for this, well you will have a bad time.

if the data is mission critical have multiple backups for it, and test the restore process of said backups.

As for your raid vs software raid, just install truenas and throw it on there, use a LSI in IT mode and create a ZFS cluster. Don't over think it.

https://vyos.io/

nothing for now. but because of the implications it will increase the price.

OpenWRT?