When I did much more general tech support for whoever asked, I carried a Live USB drive to boot from. I don’t offer that out anymore though, so no longer carry it. The closest to something digital would be my yubikey, and thats only EDC because its in my wallet
Same here! Still carry mine around and it’s partitioned so it’s also useful when someone wants to share a large file but doesn’t have the time to upload it or have the cloud storage to host it