I have this weird thing here:

  services.pipewire = {
    pulse.enable = true;
    jack.enable = true;
    alsa.enable = true;
    extraConfig.pipewire-pulse = {
      tascam."pulse.cmd" = [
        { cmd = "load-module";
          # args = "module-alsa-source source_name=foo device=usbstream:CARD=US122L fragments=3 fragment_size=512";
          args = "module-alsa-sink device=usbstream:0 sink_name=US122L_Out sink_properties=device.description=US122L_Out";
          flags = [ ];
         }
      ];
    };
  };

But when I do systemctl --user restart pipewire-pulse it says in the logs:

Dez 14 17:41:59 thnixpad pipewire[12258]: spa.alsa: 'usbstream:0': playback open failed: No such file or directory

Too many requests

You have exceeded a secondary rate limit.

lol

In reply to @magnetophon:matrix.org
I'm trying to test ardour 9.0-rc2
It won't build:
fatal error: serd/serd.h: No such file or directory

but in the configure phase it does find it:
ardour> Checking for 'serd-0' >= 0.14.0 : yes

Any ideas?

I added:
NIX_CFLAGS_COMPILE = ["-I${serd.dev}/include"];

Same error:

ardour> ../libs/ardour/lv2_plugin.cc:123:10: fatal error: serd/serd.h: No such file or directory
ardour>   123 | #include <serd/serd.h>
ardour>       |          ^~~~~~~~~~~~~
ardour> compilation terminated.

In reply to @magnetophon:matrix.org
Here's the pkg: https://gist.github.com/magnetophon/86dc90fe4a1e22074e25bccde34e893f
I only changed the src (and one extra lib, but the error already appeared before adding that lib, libXi).

magnetophon i got it

    NIX_CFLAGS_COMPILE = [
      "-I${serd.dev}/include/serd-0"
      "-I${sratom.dev}/include/sratom-0"
      "-I${sord.dev}/include/sord-0"
    ];

you'll see something like this:

 result-dev
├──  include
│   └──  sord-0
│       └──  sord
│           ├──  sord.h
│           └──  sordmm.hpp
├──  lib
│   └──  pkgconfig
│       └──  sord-0.pc
└──  nix-support
    └── 󰡯 propagated-build-inputs