{
  libopus,
  opusfile,
  libopusenc,
  libogg,
  libctb,
  gsmlib,
  lua,
  curl,
  ffmpeg,
  libmysqlclient,
  libpq,
  spandsp3,
  sofia_sip,
  libks,
}:

let

  mk = path: inputs: { inherit path inputs; };

in

# TODO: many of these are untested and missing required inputs
{
  applications = {
    abstraction = mk "applications/mod_abstraction" [ ];
    av = mk "applications/mod_av" [ ffmpeg ];
    avmd = mk "applications/mod_avmd" [ ];
    bert = mk "applications/mod_bert" [ ];
    blacklist = mk "applications/mod_blacklist" [ ];
    callcenter = mk "applications/mod_callcenter" [ ];
    cidlookup = mk "applications/mod_cidlookup" [ ];
    cluechoo = mk "applications/mod_cluechoo" [ ];
    commands = mk "applications/mod_commands" [ ];
    conference = mk "applications/mod_conference" [ ];
    curl = mk "applications/mod_curl" [ curl ];
    cv = mk "applications/mod_cv" [ ];
    db = mk "applications/mod_db" [ ];
    directory = mk "applications/mod_directory" [ ];
    distributor = mk "applications/mod_distributor" [ ];
    dptools = mk "applications/mod_dptools" [ ];
    easyroute = mk "applications/mod_easyroute" [ ];
    enum = mk "applications/mod_enum" [ ];
    esf = mk "applications/mod_esf" [ ];
    esl = mk "applications/mod_esl" [ ];
    expr = mk "applications/mod_expr" [ ];
    fifo = mk "applications/mod_fifo" [ ];
    fsk = mk "applications/mod_fsk" [ ];
    fsv = mk "applications/mod_fsv" [ ];
    hash = mk "applications/mod_hash" [ ];
    hiredis = mk "applications/mod_hiredis" [ ];
    httapi = mk "applications/mod_httapi" [ ];
    http_cache = mk "applications/mod_http_cache" [ ];
    ladspa = mk "applications/mod_ladspa" [ ];
    lcr = mk "applications/mod_lcr" [ ];
    memcache = mk "applications/mod_memcache" [ ];
    mongo = mk "applications/mod_mongo" [ ];
    mp4 = mk "applications/mod_mp4" [ ];
    mp4v2 = mk "applications/mod_mp4v2" [ ];
    nibblebill = mk "applications/mod_nibblebill" [ ];
    oreka = mk "applications/mod_oreka" [ ];
    osp = mk "applications/mod_osp" [ ];
    prefix = mk "applications/mod_prefix" [ ];
    rad_auth = mk "applications/mod_rad_auth" [ ];
    redis = mk "applications/mod_redis" [ ];
    rss = mk "applications/mod_rss" [ ];
    signalwire = mk "applications/mod_signalwire" [ ];
    sms = mk "applications/mod_sms" [ ];
    sms_flowroute = mk "applications/mod_sms_flowroute" [ ];
    snapshot = mk "applications/mod_snapshot" [ ];
    snom = mk "applications/mod_snom" [ ];
    sonar = mk "applications/mod_sonar" [ ];
    soundtouch = mk "applications/mod_soundtouch" [ ];
    spandsp = mk "applications/mod_spandsp" [ spandsp3 ];
    spy = mk "applications/mod_spy" [ ];
    stress = mk "applications/mod_stress" [ ];
    translate = mk "applications/mod_translate" [ ];
    valet_parking = mk "applications/mod_valet_parking" [ ];
    video_filter = mk "applications/mod_video_filter" [ ];
    vmd = mk "applications/mod_vmd" [ ];
    voicemail = mk "applications/mod_voicemail" [ ];
    voicemail_ivr = mk "applications/mod_voicemail_ivr" [ ];
  };

  ast_tts = {
    cepstral = mk "ast_tts/mod_cepstral" [ ];
    flite = mk "ast_tts/mod_flite" [ ];
    pocketsphinx = mk "ast_tts/mod_pocketsphinx" [ ];
    tts_commandline = mk "ast_tts/mod_tts_commandline" [ ];
    unimrcp = mk "ast_tts/mod_unimrcp" [ ];
  };

  codecs = {
    amr = mk "codecs/mod_amr" [ ];
    amrwb = mk "codecs/mod_amrwb" [ ];
    b64 = mk "codecs/mod_b64" [ ];
    bv = mk "codecs/mod_bv" [ ];
    clearmode = mk "codecs/mod_clearmode" [ ];
    codec2 = mk "codecs/mod_codec2" [ ];
    com_g729 = mk "codecs/mod_com_g729" [ ];
    dahdi_codec = mk "codecs/mod_dahdi_codec" [ ];
    g723_1 = mk "codecs/mod_g723_1" [ ];
    g729 = mk "codecs/mod_g729" [ ];
    h26x = mk "codecs/mod_h26x" [ ];
    ilbc = mk "codecs/mod_ilbc" [ ];
    isac = mk "codecs/mod_isac" [ ];
    mp4v = mk "codecs/mod_mp4v" [ ];
    opus = mk "codecs/mod_opus" [ libopus ];
    sangoma_codec = mk "codecs/mod_sangoma_codec" [ ];
    silk = mk "codecs/mod_silk" [ ];
    siren = mk "codecs/mod_siren" [ ];
    theora = mk "codecs/mod_theora" [ ];
  };

  databases = {
    mariadb = mk "databases/mod_mariadb" [ libmysqlclient ];
    pgsql = mk "databases/mod_pgsql" [ libpq ];
  };

  dialplans = {
    asterisk = mk "dialplans/mod_dialplan_asterisk" [ ];
    directory = mk "dialplans/mod_dialplan_directory" [ ];
    xml = mk "dialplans/mod_dialplan_xml" [ ];
  };

  directories = {
    ldap = mk "directories/mod_ldap" [ ];
  };

  endpoints = {
    alsa = mk "endpoints/mod_alsa" [ ];
    dingaling = mk "endpoints/mod_dingaling" [ ];
    gsmopen = mk "endpoints/mod_gsmopen" [
      gsmlib
      libctb
    ];
    h323 = mk "endpoints/mod_h323" [ ];
    khomp = mk "endpoints/mod_khomp" [ ];
    loopback = mk "endpoints/mod_loopback" [ ];
    opal = mk "endpoints/mod_opal" [ ];
    portaudio = mk "endpoints/mod_portaudio" [ ];
    rtc = mk "endpoints/mod_rtc" [ ];
    rtmp = mk "endpoints/mod_rtmp" [ ];
    skinny = mk "endpoints/mod_skinny" [ ];
    sofia = mk "endpoints/mod_sofia" [ sofia_sip ];
    verto = mk "endpoints/mod_verto" [ libks ];
  };

  event_handlers = {
    amqp = mk "event_handlers/mod_amqp" [ ];
    cdr_csv = mk "event_handlers/mod_cdr_csv" [ ];
    cdr_mongodb = mk "event_handlers/mod_cdr_mongodb" [ ];
    cdr_pg_csv = mk "event_handlers/mod_cdr_pg_csv" [ ];
    cdr_sqlite = mk "event_handlers/mod_cdr_sqlite" [ ];
    erlang_event = mk "event_handlers/mod_erlang_event" [ ];
    event_multicast = mk "event_handlers/mod_event_multicast" [ ];
    event_socket = mk "event_handlers/mod_event_socket" [ ];
    fail2ban = mk "event_handlers/mod_fail2ban" [ ];
    format_cdr = mk "event_handlers/mod_format_cdr" [ ];
    json_cdr = mk "event_handlers/mod_json_cdr" [ ];
    radius_cdr = mk "event_handlers/mod_radius_cdr" [ ];
    odbc_cdr = mk "event_handlers/mod_odbc_cdr" [ ];
    kazoo = mk "event_handlers/mod_kazoo" [ ];
    rayo = mk "event_handlers/mod_rayo" [ ];
    smpp = mk "event_handlers/mod_smpp" [ ];
    snmp = mk "event_handlers/mod_snmp" [ ];
    event_zmq = mk "event_handlers/mod_event_zmq" [ ];
  };

  formats = {
    imagick = mk "formats/mod_imagick" [ ];
    local_stream = mk "formats/mod_local_stream" [ ];
    native_file = mk "formats/mod_native_file" [ ];
    opusfile = mk "formats/mod_opusfile" [
      libopus
      opusfile
      libopusenc
      libogg
    ];
    png = mk "formats/mod_png" [ ];
    portaudio_stream = mk "formats/mod_portaudio_stream" [ ];
    shell_stream = mk "formats/mod_shell_stream" [ ];
    shout = mk "formats/mod_shout" [ ];
    sndfile = mk "formats/mod_sndfile" [ ];
    ssml = mk "formats/mod_ssml" [ ];
    tone_stream = mk "formats/mod_tone_stream" [ ];
    vlc = mk "formats/mod_vlc" [ ];
    webm = mk "formats/mod_webm" [ ];
  };

  languages = {
    basic = mk "languages/mod_basic" [ ];
    java = mk "languages/mod_java" [ ];
    lua = mk "languages/mod_lua" [ lua ];
    managed = mk "languages/mod_managed" [ ];
    perl = mk "languages/mod_perl" [ ];
    python = mk "languages/mod_python" [ ];
    v8 = mk "languages/mod_v8" [ ];
    yaml = mk "languages/mod_yaml" [ ];
  };

  loggers = {
    console = mk "loggers/mod_console" [ ];
    graylog2 = mk "loggers/mod_graylog2" [ ];
    logfile = mk "loggers/mod_logfile" [ ];
    syslog = mk "loggers/mod_syslog" [ ];
    raven = mk "loggers/mod_raven" [ ];
  };

  say = {
    de = mk "say/mod_say_de" [ ];
    en = mk "say/mod_say_en" [ ];
    es = mk "say/mod_say_es" [ ];
    es_ar = mk "say/mod_say_es_ar" [ ];
    fa = mk "say/mod_say_fa" [ ];
    fr = mk "say/mod_say_fr" [ ];
    he = mk "say/mod_say_he" [ ];
    hr = mk "say/mod_say_hr" [ ];
    hu = mk "say/mod_say_hu" [ ];
    it = mk "say/mod_say_it" [ ];
    ja = mk "say/mod_say_ja" [ ];
    nl = mk "say/mod_say_nl" [ ];
    pl = mk "say/mod_say_pl" [ ];
    pt = mk "say/mod_say_pt" [ ];
    ru = mk "say/mod_say_ru" [ ];
    sv = mk "say/mod_say_sv" [ ];
    th = mk "say/mod_say_th" [ ];
    zh = mk "say/mod_say_zh" [ ];
  };

  timers = {
    posix_timer = mk "timers/mod_posix_timer" [ ];
    timerfd = mk "timers/mod_timerfd" [ ];
  };

  xml_int = {
    cdr = mk "xml_int/mod_xml_cdr" [ ];
    curl = mk "xml_int/mod_xml_curl" [ curl ];
    ldap = mk "xml_int/mod_xml_ldap" [ ];
    radius = mk "xml_int/mod_xml_radius" [ ];
    rpc = mk "xml_int/mod_xml_rpc" [ ];
    scgi = mk "xml_int/mod_xml_scgi" [ ];

    # experimental
    odbc = mk "../../contrib/mod/xml_int/mod_xml_odbc" [ ];
  };

  freetdm = mk "../../libs/freetdm/mod_freetdm" [ ];
}