Is there a standard way of building init scripts for psgi apps? (Apart from writing a separate shell script for every app and/or adding a line to rc.local)

What I want is to write a (relatively) simple config file with all my PSGI's and their respective port numbers and options and then do like follows:

% sudo service psgi restart
# restart all
% sudo service psgi stop foo
# no instances except foo are affected
% sudo service psgi check bar
# check that bar's script compiles OK, don't run it

I'm thinking of writing a wrapper around Daemon::Control + YAML, but maybe there's already a solution?

Some people also suggest using runit. Looks promising... But I'm still interested in an init variant.