configuration.nix

@@ -9,11 +9,13 @@
   hardware.opengl.enable = true;
 
   sound.enable = true;
+  services.jack.jackd.enable = true;
+  services.jack.alsa.enable = true;
 
   # Includes packages needed for startx
   services.xserver = {
     enable = true;
-    displayManager.autoLogin.user = "geekygay";
+    displayManager.autoLogin.user = "appuser";
     windowManager.fluxbox.enable = true;
   };
 
@@ -30,12 +32,21 @@
       geekygay = {
         shell = pkgs.fish;
         isNormalUser = true;
-        extraGroups = [ "wheel" "audio" ];
+        extraGroups = [ "wheel" "dialout" "jackaudio" ];
         password = "";
         openssh.authorizedKeys.keyFiles = [
           ./authorized_keys
         ];
       };
+      # Unprivledged user for running the application.
+      appuser = {
+        isNormalUser = true;
+        extraGroups = [ "jackaudio" ];
+        password = "";
+        packages = with pkgs; [
+          puredata websocat
+        ];
+      };
     };
   };
   programs.fish.enable = true;

flake.lock

@@ -103,39 +103,20 @@
         "type": "github"
       }
     },
-    "flake-utils_5": {
-      "inputs": {
-        "systems": "systems_3"
-      },
-      "locked": {
-        "lastModified": 1694529238,
-        "narHash": "sha256-zsNZZGTGnMOf9YpHKJqMSsa0dXbfmxeoJ7xHlrt+xmY=",
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "rev": "ff7b65b44d01cf9ba6a71320833626af21126384",
-        "type": "github"
-      },
-      "original": {
-        "owner": "numtide",
-        "repo": "flake-utils",
-        "type": "github"
-      }
-    },
     "mmelodies": {
       "inputs": {
         "flake-utils": "flake-utils_3",
         "napalm": "napalm",
         "nixpkgs": [
           "nixpkgs"
-        ],
+        ]
-        "phyzzy": "phyzzy"
       },
       "locked": {
-        "lastModified": 1696434603,
+        "lastModified": 1696409911,
-        "narHash": "sha256-Wdv8H9IiikPTRPKw81HuOp0aHDcX7LhgKD8jgEPTYKY=",
+        "narHash": "sha256-IFGbm0OH6EoQ/MB5uR9kWx2BWNqXEWZYCoemcq2/rv4=",
         "ref": "refs/heads/main",
-        "rev": "a1a3221f4dcaf03262a9706f97d3cf1911dfb35f",
+        "rev": "800af05329408c236a53683a8349d5de40cb6361",
-        "revCount": 57,
+        "revCount": 50,
         "type": "git",
         "url": "https://fem.mint.lgbt/mmelodies/mmelodies.git"
       },
@@ -214,28 +195,6 @@
         "type": "github"
       }
     },
-    "phyzzy": {
-      "inputs": {
-        "flake-utils": "flake-utils_5",
-        "nixpkgs": [
-          "mmelodies",
-          "nixpkgs"
-        ]
-      },
-      "locked": {
-        "lastModified": 1696434240,
-        "narHash": "sha256-DDOn4JmDfl7GkWIsFMF9puGSmJvAO1x1t2rQIYg+DTQ=",
-        "ref": "refs/heads/main",
-        "rev": "e36c08b5291c38796494b7d0c17d190f097f18a7",
-        "revCount": 25,
-        "type": "git",
-        "url": "https://fem.mint.lgbt/mmelodies/phyzzy.git"
-      },
-      "original": {
-        "type": "git",
-        "url": "https://fem.mint.lgbt/mmelodies/phyzzy.git"
-      }
-    },
     "root": {
       "inputs": {
         "colmena": "colmena",
@@ -290,21 +249,6 @@
         "repo": "default",
         "type": "github"
       }
-    },
-    "systems_3": {
-      "locked": {
-        "lastModified": 1681028828,
-        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
-        "owner": "nix-systems",
-        "repo": "default",
-        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nix-systems",
-        "repo": "default",
-        "type": "github"
-      }
     }
   },
   "root": "root",

platforms/melodypond.nix

@@ -1,14 +1,12 @@
-{pkgs, lib, modulesPath, config, ...}:
+{pkgs, lib, modulesPath, ...}:
 {
   imports = [
       "${modulesPath}/installer/sd-card/sd-image-aarch64.nix"
   ];
-
-  services.mmelodies.midiDevice = "MPKmini2";
-  services.mmelodies.audioDevice = "Device";
-
   nixpkgs.hostPlatform.system = "aarch64-linux";
-  sdImage.imageName = "${config.networking.hostName}.img";
+  sdImage.imageName = "orange.img";
+
+  services.jack.jackd.extraOptions = [ "-dalsa" "--device" "hw:Device" ];
 
   boot.loader.raspberryPi.version = 4;
   boot.supportedFilesystems = lib.mkForce [ "btrfs" "cifs" "f2fs" "jfs" "ntfs" "reiserfs" "vfat" "xfs" ];