services: use consistent layout

Use the following order of definitions for all services:
- assertions
- configuration of other services
- environment.systemPackages
- tmpfiles
- own service
- users
- secrets

modules/lnd.nix

@@ -150,9 +150,13 @@ in {
 
     services.bitcoind = {
       enable = true;
+
       # Increase rpc thread count due to reports that lightning implementations fail
       # under high bitcoind rpc load
       rpc.threads = 16;
+
+      zmqpubrawblock = "tcp://${bitcoindRpcAddress}:28332";
+      zmqpubrawtx = "tcp://${bitcoindRpcAddress}:28333";
     };
 
     environment.systemPackages = [ cfg.package (hiPrio cfg.cli) ];
@@ -161,11 +165,6 @@ in {
       "d '${cfg.dataDir}' 0770 lnd lnd - -"
     ];
 
-    services.bitcoind = {
-      zmqpubrawblock = "tcp://${bitcoindRpcAddress}:28332";
-      zmqpubrawtx = "tcp://${bitcoindRpcAddress}:28333";
-    };
-
     systemd.services.lnd = {
       wantedBy = [ "multi-user.target" ];
       requires = [ "bitcoind.service" ];