manual missing --keygen description
OfflineMasterKey 0|1 If non-zero, the Tor relay will never generate or load its master secret key. Instead, you’ll have to use "tor --keygen" to manage the master secret key. (Default: 0)
but the manual does not contain a description of the --keygen parameter.
To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information