Set audio-recorder service to start after sound.target reached (#34)

- disable i2c-rtc-start, not functioning correctly currently

Signed-off-by: Satu Koskinen <satu.a.koskinen@gmail.com>

modules/audio-recorder/default.nix

@@ -72,7 +72,9 @@
         User = "root"; # Replace with appropriate user
         Restart = "always";
       };
-      startLimitIntervalSec = 0;
+      unitConfig = {
+        After = "sound.target";
+      };
     };
   };
 }

targets/raspberry-pi-3/default.nix

@@ -13,6 +13,7 @@ in {
 
   boot = {
     # disable internal sound card and vc4 gpu
+    # to set USB sound card as default
     blacklistedKernelModules = ["snd_bcm2835" "vc4"];
     # enable i2c and rtc modules
     kernelModules = ["i2c-dev" "i2c_bcm2708" "rtc_ds1307"];

targets/raspberry-pi-4/default.nix

@@ -9,6 +9,7 @@ in {
   sdImage.compressImage = false;
 
   # disable internal sound card and vc4 gpu
+  # to set USB sound card as default
   boot.blacklistedKernelModules = ["snd_bcm2835" "vc4"];
   # enable i2c and rtc modules
   boot.kernelModules = ["i2c-dev" "i2c_bcm2708" "rtc_ds1307"];
@@ -50,8 +51,11 @@ in {
     interval-secs = 10;
   };
 
+
+  # disabled for now, with current config
+  # RTC resets after shutdown
   services.i2c-rtc-start = {
-    enable = true;
+    enable = false;
     i2c-bus = 1;
   };