# A nice option for embedded platforms to minimize writes
# to eMMC or SD card
Adding contact details to the torrc file
At minimum, you should change the Nickname field and ContactInfo . The Nick-
name field is a shorter way to refer to your bridge; however, your bridge's fingerprint is
always the best method as it is unique. The ContactInfo field allows the Tor project to
send you an e-mail if there is a problem with your bridge. You can create an e-mail alias if
you are concerned about receiving spam. Just be sure to monitor this account for infre-
quent e-mails from the Tor project.
Tuning the bandwidth usage of your bridge
Tor's man page will describe most of these settings in detail, but some warrant extra ex-
planation. The bandwidth settings, RelayBandwidthRate and RelayBand-
widthBurst , are tunable bandwidth settings, and in a later section, we will connect our
hardware controls to manipulate these settings. The rate and the burst are in kilobytes per
second, not in the more common kilo or megabits per second, so watch your units.