gencron provides the gen_cron server for periodic command execution. gen_cron is a very thin extension over gen_server, but it was a common pattern in our code worth abstracting (non-overlapping periodic execution with a force-now feature); perhaps you will find the same.

Note this is a library for Erlang development, not a replacement of the OS utility cron.

genexpire is an example using gencron. It periodically enforces a (per-node) size limit on Mnesia databases.

Another Dukes of Erl release.