Add postgresql module

hosts/vps1/default.nix

@@ -43,7 +43,8 @@
 
   services.openssh.settings.PermitRootLogin = lib.mkForce "prohibit-password";
 
-  modules = {
+  modules = rec {
+    databases.postgresql.enable = true;
     services = {
       borgmatic = {
         enable = true;
@@ -61,7 +62,10 @@
       };
       gitea.enable = true;
       headscale.enable = true;
-      matrix-synapse.enable = true;
+      matrix-synapse = {
+        enable = true;
+        usePostgresql = databases.postgresql.enable;
+      };
       nginx.enable = true;
       photoprism.enable = true;
     };

modules/databases/postgresql.nix

@@ -0,0 +1,38 @@
+{
+  config,
+  lib,
+  ...
+}:
+
+let
+  cfg = config.modules.databases.postgresql;
+in {
+  options.modules.databases.postgresql = {
+    enable = lib.mkOption {
+      default = false;
+      example = true;
+    };
+  };
+
+  config = lib.mkIf cfg.enable {
+    services.postgresql = {
+      enable = true;
+      initdbArgs = [
+        "--allow-group-access"
+      ];
+      settings = {
+        log_connections = true;
+        log_disconnections = true;
+        log_destination = lib.mkForce "syslog";
+      };
+    };
+
+    services.borgmatic.settings = {
+      postgresql_databases = [
+        {
+          name = "all";
+        }
+      ];
+    };
+  };
+}

modules/default.nix

@@ -2,6 +2,7 @@
   imports = [
     ./options.nix
     ./podman.nix
+    ./databases/postgresql.nix
     ./desktop/gnome.nix
     ./desktop/forensics.nix
     ./desktop/hyprland.nix

modules/services/matrix-synapse/default.nix

@@ -22,7 +22,7 @@ in {
       default = "vimium.com";
       example = "vimium.com";
     };
-    usePostgres = lib.mkOption {
+    usePostgresql = lib.mkOption {
       default = false;
       example = true;
     };
@@ -129,7 +129,7 @@ in {
     services.matrix-synapse = {
       enable = true;
       settings = {
-        database.name = (if cfg.usePostgres then "psycopg2" else "sqlite3");
+        database.name = (if cfg.usePostgresql then "psycopg2" else "sqlite3");
         enable_metrics = false;
         enable_registration = false;
         max_upload_size = "100M";
@@ -138,7 +138,7 @@ in {
       };
     };
 
-    services.postgresql = lib.mkIf cfg.usePostgres {
+    services.postgresql = lib.mkIf cfg.usePostgresql {
       ensureUsers = [
         {
           name = "matrix-synapse";