Switch to ladspa.

nix/configuration/roles/gpg/default.nix

@@ -137,6 +137,8 @@
     yubikey-personalization
     yubikey-manager
     glibcLocales
+    ccid
+    libusb-compat-0_1
   ];
 
   # nixpkgs.overlays = [

nix/configuration/roles/sound/default.nix

@@ -33,9 +33,9 @@
                 filter.graph = {
                     nodes = [
                         {
-                            type = lv2
+                            type = ladspa
                             name = rnnoise
-                            plugin = "https://github.com/werman/noise-suppression-for-voice#mono"
+                            plugin = "${pkgs.rnnoise-plugin}/lib/ladspa/librnnoise_ladspa.so"
                             label = noise_suppressor_mono
                             control = {
                                 "VAD Threshold (%)" = 50.0