A couple more. Plack::App::Directory is what I usually use–

plackup -MPlack::App::Directory -e 'Plack::App::Directory->new({root =
+> q{.}})->to_app'
[download]

This (not necessarily recommended but good to know about) IO::All recipe does executables like CGIs too–

perl -MIO::All -e 'io(":8080")->fork->accept->(sub { $_[0] < io(-x $1 
+? "./$1 |" : $1) if /^GET \/(.*) / })'
[download]

Update: because that verbosity is off-putting, I'd like to add that I use the first as this alias.

moo@cow[36]~>which www
www: aliased to plackup -p 5000 -MPlack::App::Directory -e 'Plack::App
+::Directory->new({root => q{.}})->to_app'
[download]