change port on postgresql

nixos/configuration.nix

@@ -1,4 +1,10 @@
-{ config, lib, pkgs, meta, ... }:
+{
+  config,
+  lib,
+  pkgs,
+  meta,
+  ...
+}:
 
 let
   nimhStaticSite = pkgs.runCommand "nimh-static-site" { } ''
@@ -9,7 +15,10 @@ in
 {
   imports = [ ];
 
-  nix.settings.experimental-features = [ "nix-command" "flakes" ];
+  nix.settings.experimental-features = [
+    "nix-command"
+    "flakes"
+  ];
   nixpkgs.config.allowUnfree = true;
 
   # Secret Management
@@ -84,8 +93,6 @@ in
     };
   };
 
-
-
   # Setup vhosts via nginx
   services.nginx = {
     enable = true;
@@ -135,7 +142,10 @@ in
 
     bootstrap-minio = {
       enable = true;
-      environments = [ "dev" "prod" ];
+      environments = [
+        "dev"
+        "prod"
+      ];
     };
 
     default-nginx = {
@@ -148,19 +158,19 @@ in
   #           BLOG SERVICE           #
   # ================================ #
 
+  # Fullstack sourcecode
+
   # Minio for backend storage
 
   # Postgresql/postgrest for text storage
   services.postgresql-db = {
     enable = true;
     dataDir = "/var/lib/postgresql";
-    port = 5432;
+    port = 5431;
     credentialsFile = config.sops.secrets."postgresql-credentials".path;
     databases = [ "rdblog" ];
   };
 
-  # Fullstack sourcecode
-
   # ================================ #
   #         END BLOG SERVICE         #
   # ================================ #
@@ -178,7 +188,6 @@ in
   #             END MINECRAFT        #
   # ================================ #
 
-
   # Grub Boot Loader Setup
   boot.loader = {
     efi = {
@@ -201,11 +210,18 @@ in
     hostName = meta.hostname;
     hostId = meta.hostId;
     defaultGateway = "10.0.0.1";
-    nameservers = [ "1.1.1.1" "1.0.0.1" ];
+    nameservers = [
+      "1.1.1.1"
+      "1.0.0.1"
+    ];
 
     firewall = {
       enable = true;
-      allowedTCPPorts = [ 22 80 443];
+      allowedTCPPorts = [
+        22
+        80
+        443
+      ];
     };
 
     interfaces.eth0.ipv4.addresses = [
@@ -249,11 +265,13 @@ in
   #   pulse.enable = true;
   # };
 
-
   # Define a user account. Don't forget to set a password with ‘passwd’.
   users.users.sysAdmin = {
     isNormalUser = true;
-    extraGroups = [ "wheel" "networkManager" ];
+    extraGroups = [
+      "wheel"
+      "networkManager"
+    ];
     # created with mkpasswd
     hashedPassword = "$y$j9T$ILYm49Ylk4h6Wforpdw161$ds0DvzLQkbh0o3vN6D.gZ4KMo..0AOR/DwNcWtY0nH2";
     openssh.authorizedKeys.keys = [