@Krutsch here here on adding a solution for use at work and home. I too want just one external drive for a database and then take just that to work. Or even better, ability to mirror a an external drive to two and then have two systems running in sync. Personal metadata stored on the external drive also. Or something to that effect.
I’m still taking my laptop and external drive to work every day for the sole purpose of Roon. I raised it here but have made no ground on a solution. Good to see I’m not alone as i thought it would have been a common issue before I approached the forum and got crickets. Using Roon both at home and at work. Is it possible?
[Side note, a solution to this (dual locations) would also solve my issue at home where my roon is on the laptop in the study and can only connect to endpoints in bedroom/lounge via wifi or not at all. And sorry but wifi doesn’t cut it for sound quality. Mirrored multiple locations would allow a NUC at hard to reach locations.]