Nix store gc and Emacs as systemd service

hosts/hs/configuration.nix

@@ -259,6 +259,14 @@
     email = "andrea.ciceri@autistici.org";
   };
 
+  nix = {
+    package = pkgs.nixUnstable;
+    gc = {
+      automatic = true;
+      options = "--delete-older-than 3d";
+    };
+  };
+
   powerManagement.cpuFreqGovernor = lib.mkDefault "powersave";
 }
 

hosts/mbp/configuration.nix

@@ -18,13 +18,8 @@
 
   nix = {
     package = pkgs.nixUnstable;
-    extraOptions = ''
-      experimental-features = nix-command flakes flakes ca-references
-      keep-derivations = true
-      keep-outputs = true
-    '';
     gc = {
-      automatic = false;
+      automatic = true;
       user = "andreaciceri";
       options = "--delete-older-than 3d";
     };

hosts/pbp/configuration.nix

@@ -6,7 +6,7 @@
   boot = {
     initrd.availableKernelModules = [ "usbhid" ];
     kernelPackages = pbpKernelLatest;
-    kernelModules = [];
+    kernelModules = [ ];
     extraModulePackages = with config.boot.kernelPackages; [
       v4l2loopback
     ];
@@ -45,7 +45,16 @@
   };
 
   swapDevices =
-    [ { device = "/dev/disk/by-uuid/e236d328-496e-4cf8-ba54-857789ca258f"; } ];
+    [{ device = "/dev/disk/by-uuid/e236d328-496e-4cf8-ba54-857789ca258f"; }];
+
+
+  nix = {
+    package = pkgs.nixUnstable;
+    gc = {
+      automatic = true;
+      options = "--delete-older-than 3d";
+    };
+  };
 
   powerManagement.cpuFreqGovernor = lib.mkDefault "ondemand";
 }

hosts/pc/configuration.nix

@@ -43,5 +43,13 @@
   swapDevices =
     [{ device = "/dev/disk/by-label/swap"; }];
 
+  nix = {
+    package = pkgs.nixUnstable;
+    gc = {
+      automatic = true;
+      options = "--delete-older-than 3d";
+    };
+  };
+
   powerManagement.cpuFreqGovernor = lib.mkDefault "powersave";
 }