"... modules take a long time to initialize..."

Ja, ja or yes sure as you like. This is what common sense tells us.

But consider this funny little study i recently posted:

# app.psgi
use strict;
use warnings;
use Plack::Request;
use Plack::App::URLMap;
use JSON::Tiny qw(encode_json);

my $slash = sub {
    my $env = shift;
    my $json = encode_json {nose => 'cuke'};
    my $status  = 200;
    my $request = Plack::Request->new($env);
    my $headers = [
        'Content-Type'   => 'application/json',
        'Content-Length' => length $json,
    ];
    my $body = [ $json ];
    [ $status, $headers, $body ];
};

my $urlmap = Plack::App::URLMap->new;

$urlmap->mount( "/" => $slash );

my $app = $urlmap->to_app;

__END__
[download]

Preloading the Plack stuff? JSON::Tiny might be cheap but who knows.

It is really difficult to find answers for these questions.

And what if i daemonize Starman? The switches for this task are confusing.

Thanks for your kind reply and best regards, Karl.

P.S.: I asked the author. Probably he will enlight us.