Kashia is proud to present you this little tip:

Nitro Lighttpd/FasctCGI?

public/fcgi.rb:

#!/usr/bin/env ruby

ENV['NITRO_INVOKE'] ='fcgi_proc'
$0 = File.join(File.dirname(__FILE__), '..', 'run.rb')
require $0

Quote from Kashia:

don't forget to make it executable

Quote from Vagabond:

maybe you need the fastcgi ruby gem?

Lighttpd config file

# Lighttpd configuration file
# For more options check out the default configuration
# file that comes with Lighttpd.
# $Id$
 
server.port = 7657 
server.bind = "127.0.0.1"
# server.event-handler = "freebsd-kqueue" # needed on OS X
 
server.modules = ( "mod_rewrite", "mod_fastcgi", "mod_access", "mod_accesslog" )
 
server.document-root = "/path/to/your/app/public/"
server.errorlog = "/path/to/your/app/log/lighttpd.error.log"
accesslog.filename = "/path/to/your/app/log/access.log"
 
server.indexfiles = ( "index.html" )
url.access-deny = ( "~", ".inc" )
 
url.rewrite = ( "^/$" => "index.html", "^([^.] )$" => "$1.html" )
server.error-handler-404 = "/fcgi.rb"
 
fastcgi.server = ( ".rb" =>
  ( "localhost" => 
    ( 
      "min-procs" => 1, 
      "max-procs" => 5,
      "socket" => "/tmp/blog.fcgi.socket",
      "bin-path" => "/home/gmosx/public/nitro/proto/public/fcgi.rb"
      "bin-environment" => ( "NITRO_ENV" => "development" )
    )
  )
)
 
mimetype.assign = (  
  ".pdf"          =>      "application/pdf",
  ".sig"          =>      "application/pgp-signature",
  ".spl"          =>      "application/futuresplash",
  ".class"        =>      "application/octet-stream",
  ".ps"           =>      "application/postscript",
  ".torrent"      =>      "application/x-bittorrent",
  ".dvi"          =>      "application/x-dvi",
  ".gz"           =>      "application/x-gzip",
  ".pac"          =>      "application/x-ns-proxy-autoconfig",
  ".swf"          =>      "application/x-shockwave-flash",
  ".tar.gz"       =>      "application/x-tgz",
  ".tgz"          =>      "application/x-tgz",
  ".tar"          =>      "application/x-tar",
  ".zip"          =>      "application/zip",
  ".mp3"          =>      "audio/mpeg",
  ".m3u"          =>      "audio/x-mpegurl",
  ".wma"          =>      "audio/x-ms-wma",
  ".wax"          =>      "audio/x-ms-wax",
  ".ogg"          =>      "audio/x-wav",
  ".wav"          =>      "audio/x-wav",
  ".gif"          =>      "image/gif",
  ".jpg"          =>      "image/jpeg",
  ".jpeg"         =>      "image/jpeg",
  ".png"          =>      "image/png",
  ".xbm"          =>      "image/x-xbitmap",
  ".xpm"          =>      "image/x-xpixmap",
  ".xwd"          =>      "image/x-xwindowdump",
  ".css"          =>      "text/css",
  ".html"         =>      "text/html",
  ".htm"          =>      "text/html",
  ".js"           =>      "text/javascript",
  ".asc"          =>      "text/plain",
  ".c"            =>      "text/plain",
  ".conf"         =>      "text/plain",
  ".text"         =>      "text/plain",
  ".txt"          =>      "text/plain",
  ".dtd"          =>      "text/xml",
  ".xml"          =>      "text/xml",
  ".mpeg"         =>      "video/mpeg",
  ".mpg"          =>      "video/mpeg",
  ".mov"          =>      "video/quicktime",
  ".qt"           =>      "video/quicktime",
  ".avi"          =>      "video/x-msvideo",
  ".asf"          =>      "video/x-ms-asf",
  ".asx"          =>      "video/x-ms-asf",
  ".wmv"          =>      "video/x-ms-wmv"
)
 
 
server.port = 9999
server.bind = "127.0.0.1"
# server.event-handler = "freebsd-kqueue" # needed on OS X
 
server.modules = ( "mod_rewrite", "mod_fastcgi" )
 
url.rewrite = ( "^/$" => "index.html", "^([^.] )$" => "$1.html" )
server.error-handler-404 = "/fcgi.rb"
 
server.document-root = "/path/application/public"
server.errorlog      = "/path/application/log/server.log"
 
fastcgi.server = ( ".rb" =>
  ( "localhost" =>
      (
        "min-procs" => 1, 
        "max-procs" => 5,
        "socket"   => "/tmp/application.fcgi.socket",
        "bin-path" => "/path/application/public/dispatch.fcgi",
        "bin-environment" => ( "RAILS_ENV" => "development" )
      )
  )
)