yevaud: specify (non-boot-critical) zfs datasets with randomcat's module

Also moves forgejo state directory to the default location

hosts/yevaud/default.nix

@@ -52,10 +52,14 @@
   networking.firewall.allowedTCPPorts = [ 53 ];
   networking.firewall.allowedUDPPorts = [ 53 ];
 
+  randomcat.services.zfs.datasets = {
+    "rpool/state" = { mountpoint = "none"; };
+    "rpool/state/forgejo" = { mountpoint = "/var/lib/forgejo"; };
+  };
+
   qenya.services.forgejo = {
     enable = true;
     domain = "git.qenya.tel";
-    stateDir = "/data/forgejo";
   };
 
   services.nginx = {

hosts/yevaud/hardware-configuration.nix

@@ -28,11 +28,6 @@
       fsType = "zfs";
     };
 
-  fileSystems."/data/forgejo" =
-    { device = "rpool/forgejo";
-      fsType = "zfs";
-    };
-
   fileSystems."/boot" =
     { device = "/dev/disk/by-uuid/107D-5AB3";
       fsType = "vfat";

services/forgejo.nix

@@ -10,9 +10,6 @@ in
     domain = mkOption {
       type = types.str;
     };
-    stateDir = mkOption {
-      type = types.str;
-    };
   };
 
   config = mkIf cfg.enable {
@@ -33,7 +30,6 @@ in
 
       forgejo = {
         enable = true;
-        stateDir = cfg.stateDir;
         settings = {
           DEFAULT.APP_NAME = cfg.domain;
           cache = {