Recommendations for my.cnf on MySQL Replicant

I have replication environment running in a master-slave configuration. The replicant is doing all writes and doing selects only very rarely - and none in which high performance is a requirement.

Aside from the replication options themselves which have to be set, do the db administrators here have any recommendations for configuration of a mysql replicant that would be different from the default my.cnf values on a master server which is doing both selects and writes?

I can provide my own mysql-tuner results and my.cnf configuration, but I guess I was hoping for a more general overview on the configuration best practices for a replicant that is doing mostly writes.