diff --git a/data/powerdns/files/bind-zones/franzi.business b/data/powerdns/files/bind-zones/franzi.business
index 97c9e98..74f52c5 100644
--- a/data/powerdns/files/bind-zones/franzi.business
+++ b/data/powerdns/files/bind-zones/franzi.business
@@ -9,10 +9,7 @@ $ORIGIN franzi.business.
                 IN  TXT     "v=spf1 mx ~all"
 
 chat            IN  CNAME   rx300.kunbox.net.
-
-dimension       IN  A       94.130.52.224
-dimension       IN  AAAA    2a01:4f8:10b:2a5f::2
-
+dimension       IN  CNAME   rx300.kunbox.net.
 git             IN  CNAME   rx300.kunbox.net.
 jenkins         IN  CNAME   rx300.kunbox.net.
 matrix          IN  CNAME   rx300.kunbox.net.
diff --git a/nodes/htz/ex42-1048908.py b/nodes/htz/ex42-1048908.py
index 9ea8a2e..0945115 100644
--- a/nodes/htz/ex42-1048908.py
+++ b/nodes/htz/ex42-1048908.py
@@ -112,17 +112,6 @@ nodes['htz.ex42-1048908'] = {
                         },
                     },
                 },
-                'dimension.franzi.business': {
-                    'ssl': '_.franzi.business',
-                    'extras': True,
-                    'do_not_set_content_security_headers': True,
-                    'max_body_size': '50M',
-                    'locations': {
-                        '/': {
-                            'target': 'http://127.0.0.1:8184',
-                        },
-                    },
-                },
                 'git.kunsmann.eu': {
                     'locations': {
                         '/': {
diff --git a/nodes/rx300.py b/nodes/rx300.py
index a8bf619..79414f2 100644
--- a/nodes/rx300.py
+++ b/nodes/rx300.py
@@ -13,6 +13,7 @@ nodes['rx300'] = {
         'gitea',
         'jenkins-ci',
         'lm-sensors',
+        'matrix-dimension',
         'matrix-media-repo',
         'matrix-synapse',
         'mautrix-telegram',
@@ -187,6 +188,22 @@ nodes['rx300'] = {
             },
             'upload_max_mb': 500,
         },
+        'matrix-dimension': {
+            'url': 'dimension.franzi.business',
+            'version': 'master', # doesn't have releases yet
+            'homeserver': {
+                'name': 'franzi.business',
+                'clientServerUrl': 'https://matrix.franzi.business',
+                'accessToken': vault.decrypt('encrypt$gAAAAABg-wBmGbAy-Ou1mkG2w5UyoqWmWYzDr4ZavyUQdmG_VtrUSmwHjx-qcBGIz_7NniD3zKm9GGvzRZItDu5zYiojcudYr74TkWJKhdDrgFbcWlfJJ_m3bWzrSORaTYzBGRckp2Vz_8xHgDk1W03vpT6mdIPMDzjuINssIcPs0YDth25W942tMfPA2csvLADY50qVRMJpdBOVIWba55o0g6-mAAQLOz6Ld4cCvYqZsqXsxjT8JUytJv_uSG4zgCS_aX20JlAyJWpJgT8FQF5HzIbsko_-Z9-TwtY7yllJp5Ri3n0WaDaWoMmUfhLvkMJeymmOc32A4WJBAePQ_2F-_oUDE7t97A-m3ZiMVAEefDnH5MkoiQEJTfHrJsXRkdBT_BnJlY1CoAuXpRYDdvbVDwN_qZHHHtqsno437l9S6GgDK_-sKBiojYkYsfHcJCdSEqeFGuxT'),
+            },
+            'admins': [
+                '@kunsi:franzi.business',
+            ],
+            'telegram': {
+                # same as for mautrix-telegram
+                'botToken': vault.decrypt('encrypt$gAAAAABfVK51ErJ6gfsOOkbRxSHDnVYmf7EihAQf7Uwj9og3TlAw64WRsA6ZVEgTSvOdLB3SMKZ-cTEhwkCOpbymq-_WLhes-hZALhN-H_oXHaxTQErJ0lARynKmjM-4ZhoGlUWlfh4Q'),
+            },
+        },
         'matrix-synapse': {
             'server_name': 'franzi.business',
             'baseurl': 'matrix.franzi.business',
@@ -221,6 +238,7 @@ nodes['rx300'] = {
             'telegram': {
                 'api_id': vault.decrypt('encrypt$gAAAAABfVK5SmDDru-UQxitkE5VhPArnUBhaRbAqQPvAW2Fh3fd1XDrWxa3Qn4BSnJAPNWglH5wil_SXUMcIm95FMhPe8dVeMQ=='),
                 'api_token': vault.decrypt('encrypt$gAAAAABfVK5jHuUly1xr9Iku362k7oF4ZYRhLGzNJh3aJpiNrLfAy_DJpTwucx4FV_g45dyQF5boqG2rgdDfwsJN_Ab95es6T4SPGiXIxJOBlvIln1Torwh16pXKchhUTn_PQ077Ll1W'),
+                # same as for matrix-dimension
                 'bot_token': vault.decrypt('encrypt$gAAAAABfVK51ErJ6gfsOOkbRxSHDnVYmf7EihAQf7Uwj9og3TlAw64WRsA6ZVEgTSvOdLB3SMKZ-cTEhwkCOpbymq-_WLhes-hZALhN-H_oXHaxTQErJ0lARynKmjM-4ZhoGlUWlfh4Q'),
             },
         },
@@ -261,6 +279,7 @@ nodes['rx300'] = {
                 'element-web': {'ssl': '_.franzi.business'},
                 'gitea': {'ssl': '_.franzi.business'},
                 'jenkins-ci': {'ssl': '_.franzi.business'},
+                'matrix-dimension': {'ssl': '_.franzi.business'},
                 'matrix-synapse': {'ssl': '_.franzi.business'},
                 'miniflux': {'ssl': '_.franzi.business'},
                 'radicale': {'ssl': '_.franzi.business'},