diff --git a/nixos/tests/dolibarr.nix b/nixos/tests/dolibarr.nix
index 5a67a4a66e77..97ee0ebc7bb0 100644
--- a/nixos/tests/dolibarr.nix
+++ b/nixos/tests/dolibarr.nix
@@ -3,58 +3,84 @@
   name = "dolibarr";
   meta.maintainers = [ ];
 
-  nodes.machine =
-    { ... }:
-    {
-      services.dolibarr = {
-        enable = true;
-        domain = "localhost";
-        nginx = {
-          forceSSL = false;
-          enableACME = false;
+  nodes = {
+    nginx_mysql =
+      { ... }:
+      {
+        services.dolibarr = {
+          enable = true;
+          domain = "localhost";
+          nginx = {
+            forceSSL = false;
+            enableACME = false;
+          };
+          database.type = "mysql";
         };
+
+        networking.firewall.allowedTCPPorts = [ 80 ];
       };
+    h2o_postgresql =
+      { ... }:
+      {
+        services.dolibarr = {
+          enable = true;
+          domain = "localhost";
+          h2o = {
+            acme.enable = false;
+          };
+          database.type = "postgresql";
+        };
 
-      networking.firewall.allowedTCPPorts = [ 80 ];
-    };
+        networking.firewall.allowedTCPPorts = [ 80 ];
+      };
+  };
 
-  testScript = ''
-    from html.parser import HTMLParser
-    start_all()
+  testScript = # python
+    ''
+      from html.parser import HTMLParser
+      start_all()
 
-    csrf_token = None
-    class TokenParser(HTMLParser):
-      def handle_starttag(self, tag, attrs):
-        attrs = dict(attrs) # attrs is an assoc list originally
-        if tag == 'input' and attrs.get('name') == 'token':
-            csrf_token = attrs.get('value')
-            print(f'[+] Caught CSRF token: {csrf_token}')
-      def handle_endtag(self, tag): pass
-      def handle_data(self, data): pass
+      csrf_token = None
+      class TokenParser(HTMLParser):
+        def handle_starttag(self, tag, attrs):
+          attrs = dict(attrs) # attrs is an assoc list originally
+          if tag == 'input' and attrs.get('name') == 'token':
+              csrf_token = attrs.get('value')
+              print(f'[+] Caught CSRF token: {csrf_token}')
+        def handle_endtag(self, tag): pass
+        def handle_data(self, data): pass
 
-    machine.wait_for_unit("phpfpm-dolibarr.service")
-    machine.wait_for_unit("nginx.service")
-    machine.wait_for_open_port(80)
-    # Sanity checks on URLs.
-    # machine.succeed("curl -fL http://localhost/index.php")
-    # machine.succeed("curl -fL http://localhost/")
-    # Perform installation.
-    machine.succeed('curl -fL -X POST http://localhost/install/check.php -F selectlang=auto')
-    machine.succeed('curl -fL -X POST http://localhost/install/fileconf.php -F selectlang=auto')
-    # First time is to write the configuration file correctly.
-    machine.succeed('curl -fL -X POST http://localhost/install/step1.php -F "testpost=ok" -F "action=set" -F "selectlang=auto"')
-    # Now, we have a proper conf.php in $stateDir.
-    assert 'nixos' in machine.succeed("cat /var/lib/dolibarr/conf.php")
-    machine.succeed('curl -fL -X POST http://localhost/install/step2.php --data "testpost=ok&action=set&dolibarr_main_db_character_set=utf8&dolibarr_main_db_collation=utf8_unicode_ci&selectlang=auto"')
-    machine.succeed('curl -fL -X POST http://localhost/install/step4.php --data "testpost=ok&action=set&selectlang=auto"')
-    machine.succeed('curl -fL -X POST http://localhost/install/step5.php --data "testpost=ok&action=set&login=root&pass=hunter2&pass_verif=hunter2&selectlang=auto"')
-    # Now, we have installed the machine, let's verify we still have the right configuration.
-    assert 'nixos' in machine.succeed("cat /var/lib/dolibarr/conf.php")
-    # We do not want any redirect now as we have installed the machine.
-    machine.succeed('curl -f -X GET http://localhost')
-    # Test authentication to the webservice.
-    parser = TokenParser()
-    parser.feed(machine.succeed('curl -f -X GET http://localhost/index.php?mainmenu=login&username=root'))
-    machine.succeed(f'curl -f -X POST http://localhost/index.php?mainmenu=login&token={csrf_token}&username=root&password=hunter2')
-  '';
+      # wait for app
+      for machine in (nginx_mysql, h2o_postgresql):
+        machine.wait_for_unit("phpfpm-dolibarr.service")
+
+      # wait for web servers
+      nginx_mysql.wait_for_unit("nginx.service")
+      nginx_mysql.wait_for_open_port(80)
+      h2o_postgresql.wait_for_unit("h2o.service")
+      h2o_postgresql.wait_for_open_port(80)
+
+      for machine in (nginx_mysql, h2o_postgresql):
+        # Sanity checks on URLs.
+        machine.succeed("curl -fL http://localhost/index.php")
+        machine.succeed("curl -fL http://localhost/")
+        # Perform installation.
+        machine.succeed('curl -fL -X POST http://localhost/install/check.php -F selectlang=auto')
+        machine.succeed('curl -fL -X POST http://localhost/install/fileconf.php -F selectlang=auto')
+        # First time is to write the configuration file correctly.
+        machine.succeed('curl -fL -X POST http://localhost/install/step1.php -F "testpost=ok" -F "action=set" -F "selectlang=auto"')
+        # Now, we have a proper conf.php in $stateDir.
+        assert 'nixos' in machine.succeed("cat /var/lib/dolibarr/conf.php")
+        machine.succeed('curl -fL -X POST http://localhost/install/step2.php --data "testpost=ok&action=set&dolibarr_main_db_character_set=utf8&dolibarr_main_db_collation=utf8_unicode_ci&selectlang=auto"')
+        machine.succeed('curl -fL -X POST http://localhost/install/step4.php --data "testpost=ok&action=set&selectlang=auto"')
+        machine.succeed('curl -fL -X POST http://localhost/install/step5.php --data "testpost=ok&action=set&login=root&pass=hunter2&pass_verif=hunter2&selectlang=auto"')
+        # Now, we have installed the machine, let's verify we still have the right configuration.
+        assert 'nixos' in machine.succeed("cat /var/lib/dolibarr/conf.php")
+        # We do not want any redirect now as we have installed the machine.
+        machine.succeed('curl -f -X GET http://localhost')
+        # Test authentication to the webservice.
+        parser = TokenParser()
+        parser.feed(machine.succeed('curl -f -X GET http://localhost/index.php?mainmenu=login&username=root'))
+        machine.succeed(f'curl -f -X POST http://localhost/index.php?mainmenu=login&token={csrf_token}&username=root&password=hunter2')
+    '';
 }