diff --git a/bb.edn b/bb.edn
index 96bf36f6f0..5bdc5c5b50 100644
--- a/bb.edn
+++ b/bb.edn
@@ -146,6 +146,9 @@
   dev:lint-and-test
   logseq.tasks.dev/lint-and-test
 
+  dev:rtc-e2e-test
+  logseq.tasks.dev/rtc-e2e-test
+
   dev:gen-malli-kondo-config
   logseq.tasks.dev/gen-malli-kondo-config
 
diff --git a/karma.conf.js b/karma.conf.js
index 6df1076c27..5f8098362f 100644
--- a/karma.conf.js
+++ b/karma.conf.js
@@ -12,7 +12,8 @@ module.exports = function (config) {
         client: {
             args: ["shadow.test.karma.init"],
             singleRun: true,
-	    testvar: config.testvar
+	    testvar: config.testvar,
+	    seed: config.seed
         }
     })
 };
diff --git a/scripts/src/logseq/tasks/dev.clj b/scripts/src/logseq/tasks/dev.clj
index 17fe30f469..b5d6670251 100644
--- a/scripts/src/logseq/tasks/dev.clj
+++ b/scripts/src/logseq/tasks/dev.clj
@@ -9,7 +9,8 @@
             [clojure.java.io :as io]
             [clojure.pprint :as pp]
             [clojure.edn :as edn]
-            [clojure.data :as data]))
+            [clojure.data :as data]
+            [clojure.core.async :as async]))
 
 (defn test
   "Run tests. Pass args through to cmd 'yarn cljs:run-test'"
@@ -24,6 +25,14 @@
   (dev-lint/dev)
   (test "-e" "long" "-e" "fix-me"))
 
+(defn rtc-e2e-test
+  "Run karma rtc-e2e-test"
+  []
+  (let [seed (hash (rand))
+        c1 (async/go (shell (str "npx karma start --testvar=client1 --single-run --seed=" seed)))
+        c2 (async/go (shell (str "npx karma start --testvar=client2 --single-run --seed=" seed)))]
+    (prn :exit-code :client1 (:exit (async/<!! c1)) :client2 (:exit (async/<!! c2)))))
+
 (defn gen-malli-kondo-config
   "Generate clj-kondo type-mismatch config from malli schema
   .clj-kondo/metosin/malli-types/config.edn"
diff --git a/shadow-cljs.edn b/shadow-cljs.edn
index 6e7f70dcd4..8973f8ee2f 100644
--- a/shadow-cljs.edn
+++ b/shadow-cljs.edn
@@ -92,6 +92,7 @@
   :rtc-e2e-test {:target :karma
                  :closure-defines {frontend.worker.rtc.const/RTC-E2E-TEST* true}
                  :output-to "static/rtc-e2e-test/main.js"
+                 :devtools {:enabled true}
                  :compiler-options {:source-map true
                                     :warnings {:fn-deprecated false
                                                :redef false}}}
diff --git a/src/rtc_e2e_test/basic_edits_test.cljs b/src/rtc_e2e_test/basic_edits_test.cljs
index 0ed74fb71e..7efb0cc184 100644
--- a/src/rtc_e2e_test/basic_edits_test.cljs
+++ b/src/rtc_e2e_test/basic_edits_test.cljs
@@ -1,93 +1,31 @@
 (ns basic-edits-test
-  (:require [cljs.test :as t :refer [deftest is testing]]
+  (:require [client1-edits]
+            [cljs.test :as t :refer [deftest testing]]
             [const]
-            [datascript.core :as d]
             [fixture]
-            [frontend.worker.rtc.client-op :as client-op]
-            [frontend.worker.rtc.core :as rtc-core]
-            [frontend.worker.rtc.log-and-state :as rtc-log-and-state]
             [helper]
-            [logseq.outliner.batch-tx :as batch-tx]
-            [meander.epsilon :as me]
             [missionary.core :as m]))
 
-(when (exists? js/__karma__)
-  (prn :config.testvar js/__karma__.config.testvar))
-
 (t/use-fixtures :once
   fixture/install-some-consts
   fixture/install-example-db-fixture
   fixture/clear-test-remote-graphs-fixture
-  fixture/build-two-conns-by-download-example-graph-fixture)
-
-(defn- simplify-client-op
-  [client-op]
-  #_:clj-kondo/ignore
-  (me/find
-   client-op
-    [?op-type _ {:block-uuid ?block-uuid :av-coll [[!a !v _ !add] ...]}]
-    [?op-type ?block-uuid (map vector !a !v !add)]
-
-    [?op-type _ {:block-uuid ?block-uuid}]
-    [?op-type ?block-uuid]))
-
-(def ^:private page-uuid1 (random-uuid))
-(def ^:private block-uuid1 (random-uuid))
-
-(def ^:private tx-data-map
-  {:create-page
-   [{:db/id "page"
-     :block/name "basic-edits-test"
-     :block/title "basic-edits-test"
-     :block/uuid page-uuid1
-     :block/created-at 1724836490809
-     :block/updated-at 1724836490809
-     :block/type "page"
-     :block/format :markdown}
-    {:block/uuid block-uuid1
-     :block/updated-at 1724836490810
-     :block/created-at 1724836490810
-     :block/format :markdown
-     :block/title "block1"
-     :block/parent "page"
-     :block/order "a0"
-     :block/page "page"}]})
+  fixture/upload-example-graph-fixture
+  fixture/build-conn-by-download-example-graph-fixture)
 
 (deftest basic-edits-test
-  (let [conn1 (helper/get-downloaded-test-conn)]
-    (t/async
-     done
-     (js/Promise.
+  (t/async
+   done
+   (js/Promise.
+    (if const/is-client1?
       (m/sp
         (testing "create page first"
-          (let [tx-data (tx-data-map :create-page)]
-            (batch-tx/with-batch-tx-mode conn1 {:e2e-test const/downloaded-test-repo}
-              (d/transact! conn1 tx-data))
-
-            (is (=
-                 #{[:update-page page-uuid1]
-                   [:update page-uuid1
-                    [[:block/title "[\"~#'\",\"basic-edits-test\"]" true]
-                     [:block/created-at "[\"~#'\",1724836490809]" true]
-                     [:block/updated-at "[\"~#'\",1724836490809]" true]
-                     [:block/type "[\"~#'\",\"page\"]" true]]]
-                   [:move block-uuid1]
-                   [:update block-uuid1
-                    [[:block/updated-at "[\"~#'\",1724836490810]" true]
-                     [:block/created-at "[\"~#'\",1724836490810]" true]
-                     [:block/title "[\"~#'\",\"block1\"]" true]]]}
-                 (set (map simplify-client-op (client-op/get-all-ops const/downloaded-test-repo)))))))
-
+          (client1-edits/step1--create-page))
         (testing "start rtc on repo"
-          (let [r (m/? (rtc-core/new-task--rtc-start const/downloaded-test-repo const/test-token))]
-            (is (nil? r))))
+          (m/? (client1-edits/step2--task-start-rtc)))
         (testing "waiting for :create-page synced"
-          (let [r (m/? (m/timeout
-                        (m/reduce (fn [_ v]
-                                    (when (= :rtc.log/push-local-update (:type v))
-                                      (reduced v)))
-                                  rtc-log-and-state/rtc-log-flow)
-                        6000 :timeout))]
-            (is (not= :timeout r))))
-
+          (m/? (client1-edits/step3--task-wait-:create-page-synced)))
+        (done))
+      (m/sp
+        (testing "TODO: client2 cases")
         (done))))))
diff --git a/src/rtc_e2e_test/client1_edits.cljs b/src/rtc_e2e_test/client1_edits.cljs
new file mode 100644
index 0000000000..badff79853
--- /dev/null
+++ b/src/rtc_e2e_test/client1_edits.cljs
@@ -0,0 +1,47 @@
+(ns client1-edits
+  (:require [cljs.test :as t :refer [is]]
+            [const]
+            [datascript.core :as d]
+            [frontend.worker.rtc.client-op :as client-op]
+            [frontend.worker.rtc.core :as rtc-core]
+            [frontend.worker.rtc.log-and-state :as rtc-log-and-state]
+            [helper]
+            [logseq.outliner.batch-tx :as batch-tx]
+            [missionary.core :as m]))
+
+(defn step1--create-page
+  []
+  (let [conn (helper/get-downloaded-test-conn)
+        tx-data (const/tx-data-map :create-page)]
+    (batch-tx/with-batch-tx-mode conn {:e2e-test const/downloaded-test-repo}
+      (d/transact! conn tx-data))
+    (is (=
+         #{[:update-page const/page-uuid1]
+           [:update const/page-uuid1
+            [[:block/title "[\"~#'\",\"basic-edits-test\"]" true]
+             [:block/created-at "[\"~#'\",1724836490809]" true]
+             [:block/updated-at "[\"~#'\",1724836490809]" true]
+             [:block/type "[\"~#'\",\"page\"]" true]]]
+           [:move const/block-uuid1]
+           [:update const/block-uuid1
+            [[:block/updated-at "[\"~#'\",1724836490810]" true]
+             [:block/created-at "[\"~#'\",1724836490810]" true]
+             [:block/title "[\"~#'\",\"block1\"]" true]]]}
+         (set (map helper/simplify-client-op (client-op/get-all-ops const/downloaded-test-repo)))))))
+
+(defn step2--task-start-rtc
+  []
+  (m/sp
+    (let [r (m/? (rtc-core/new-task--rtc-start const/downloaded-test-repo const/test-token))]
+      (is (nil? r)))))
+
+(defn step3--task-wait-:create-page-synced
+  []
+  (m/sp
+    (let [r (m/? (m/timeout
+                  (m/reduce (fn [_ v]
+                              (when (= :rtc.log/push-local-update (:type v))
+                                (reduced v)))
+                            rtc-log-and-state/rtc-log-flow)
+                  6000 :timeout))]
+      (is (not= :timeout r)))))
diff --git a/src/rtc_e2e_test/const.cljs b/src/rtc_e2e_test/const.cljs
index e517cecc5f..38731b02bb 100644
--- a/src/rtc_e2e_test/const.cljs
+++ b/src/rtc_e2e_test/const.cljs
@@ -1,11 +1,40 @@
 (ns const
   "Consts for rtc e2e tests")
 
+(assert (exists? js/__karma__))
+(def seed js/__karma__.config.seed)
+(def testvar js/__karma__.config.testvar)
+(prn :karma-config :seed seed :testvar testvar)
+
+(def is-client1? (= "client1" testvar))
+
 (def test-token "TEST-TOKEN")
-(def test-graph-name "TEST-REPO")
-(def test-repo "logseq_db_TEST-REPO")
+(def test-graph-name (str "TEST-REPO-" seed))
+(def test-repo (str "logseq_db_TEST-REPO-" seed))
 
 (def downloaded-test-graph-name "TEST-REPO-downloaded")
 (def downloaded-test-repo "logseq_db_TEST-REPO-downloaded")
-(def downloaded-test-graph-name2 "TEST-REPO-2-downloaded")
-(def downloaded-test-repo2 "logseq_db_TEST-REPO-2-downloaded")
+
+;;; tests data
+(def page-uuid1 (random-uuid))
+
+(def block-uuid1 (random-uuid))
+
+(def tx-data-map
+  {:create-page
+   [{:db/id "page"
+     :block/name "basic-edits-test"
+     :block/title "basic-edits-test"
+     :block/uuid page-uuid1
+     :block/created-at 1724836490809
+     :block/updated-at 1724836490809
+     :block/type "page"
+     :block/format :markdown}
+    {:block/uuid block-uuid1
+     :block/updated-at 1724836490810
+     :block/created-at 1724836490810
+     :block/format :markdown
+     :block/title "block1"
+     :block/parent "page"
+     :block/order "a0"
+     :block/page "page"}]})
diff --git a/src/rtc_e2e_test/download_upload_test.cljs b/src/rtc_e2e_test/download_upload_test.cljs
deleted file mode 100644
index ac62cac868..0000000000
--- a/src/rtc_e2e_test/download_upload_test.cljs
+++ /dev/null
@@ -1,31 +0,0 @@
-(ns download-upload-test
-  "RTC e2e tests for download-graph and upload-graph"
-  (:require [cljs.test :as t :refer [deftest]]
-            [const]
-            [datascript.core :as d]
-            [example]
-            [fixture]
-            [frontend.common.missionary-util :as c.m]
-            [helper]
-            [missionary.core :as m]
-            [frontend.worker.state :as worker-state]))
-
-(t/use-fixtures :once
-  fixture/install-some-consts
-  fixture/install-example-db-fixture
-  fixture/clear-test-remote-graphs-fixture)
-
-(deftest upload-download-graph-test
-  (t/async
-   done
-   (c.m/run-task-throw
-    (m/sp
-      (println :example-db-block-count (count (d/datoms @(helper/get-example-test-conn) :avet :block/uuid)))
-      (let [{:keys [graph-uuid]} (m/? helper/new-task--upload-example-graph)]
-        (m/? (helper/new-task--wait-creating-graph graph-uuid))
-        (m/? (helper/new-task--download-graph graph-uuid const/downloaded-test-graph-name))
-        (let [conn (helper/get-downloaded-test-conn)]
-          (println :repos (keys @worker-state/*datascript-conns))
-          (println :block-count (count (d/datoms @conn :avet :block/uuid)))))
-      (done))
-    :upload-download-graph-test)))
diff --git a/src/rtc_e2e_test/fixture.cljs b/src/rtc_e2e_test/fixture.cljs
index 1f3eb29197..a573605ab0 100644
--- a/src/rtc_e2e_test/fixture.cljs
+++ b/src/rtc_e2e_test/fixture.cljs
@@ -18,6 +18,7 @@
 (def install-example-db-fixture
   {:before
    (fn []
+     (prn :test-repo const/test-repo)
      (swap! worker-state/*client-ops-conns assoc const/test-repo (d/create-conn client-op/schema-in-db))
      (let [conn (d/conn-from-db example/example-db)]
        (swap! worker-state/*datascript-conns assoc const/test-repo conn)))
@@ -28,30 +29,45 @@
 
 (def clear-test-remote-graphs-fixture
   {:before
-   #(t/async
-     done
-     (c.m/run-task-throw
-      (m/sp
-        (m/? helper/new-task--clear-all-test-remote-graphs)
-        (done))
-      :clear-test-remote-graphs))})
+   #(when const/is-client1?
+      (t/async
+       done
+       (c.m/run-task-throw
+        (m/sp
+          (m/? helper/new-task--clear-all-test-remote-graphs)
+          (done))
+        :clear-test-remote-graphs)))})
 
-(def build-two-conns-by-download-example-graph-fixture
+(def upload-example-graph-fixture
+  {:before
+   #(when const/is-client1?
+      (t/async
+       done
+       (c.m/run-task-throw
+        (m/sp
+          (swap! worker-state/*datascript-conns dissoc const/downloaded-test-repo)
+          (swap! worker-state/*client-ops-conns assoc
+                 const/downloaded-test-repo (d/create-conn client-op/schema-in-db))
+          (let [{:keys [graph-uuid]} (m/? helper/new-task--upload-example-graph)]
+            (assert (some? graph-uuid))
+            (m/? (helper/new-task--wait-creating-graph graph-uuid)))
+          (done))
+        :upload-example-graph-fixture)))})
+
+(def build-conn-by-download-example-graph-fixture
   {:before
    #(t/async
      done
      (c.m/run-task-throw
       (m/sp
-        (swap! worker-state/*datascript-conns dissoc const/downloaded-test-repo const/downloaded-test-repo2)
+        (swap! worker-state/*datascript-conns dissoc const/downloaded-test-repo)
         (swap! worker-state/*client-ops-conns assoc
-               const/downloaded-test-repo (d/create-conn client-op/schema-in-db)
-               const/downloaded-test-repo2 (d/create-conn client-op/schema-in-db))
-        (let [{:keys [graph-uuid]} (m/? helper/new-task--upload-example-graph)]
-          (m/? (helper/new-task--wait-creating-graph graph-uuid))
-          (m/? (helper/new-task--download-graph graph-uuid const/downloaded-test-graph-name))
-          (m/? (helper/new-task--download-graph graph-uuid const/downloaded-test-graph-name2))
-          (done)))
-      :build-two-conns-by-download-example-graph-fixture))
+               const/downloaded-test-repo (d/create-conn client-op/schema-in-db))
+        (let [graph-uuid (m/? helper/new-task--get-remote-example-graph-uuid)]
+          (assert (some? graph-uuid))
+          (m/? (helper/new-task--download-graph graph-uuid const/downloaded-test-graph-name)))
+        (done))
+      :build-conn-by-download-example-graph-fixture))
    :after
-   #(do (swap! worker-state/*datascript-conns dissoc const/downloaded-test-repo const/downloaded-test-repo2)
-        (swap! worker-state/*client-ops-conns dissoc const/downloaded-test-repo const/downloaded-test-repo2))})
+   #(do (swap! worker-state/*datascript-conns dissoc const/downloaded-test-repo)
+        (swap! worker-state/*client-ops-conns dissoc const/downloaded-test-repo))})
diff --git a/src/rtc_e2e_test/helper.cljs b/src/rtc_e2e_test/helper.cljs
index f01bae6860..2df4813b05 100644
--- a/src/rtc_e2e_test/helper.cljs
+++ b/src/rtc_e2e_test/helper.cljs
@@ -3,10 +3,11 @@
             [frontend.common.missionary-util :as c.m]
             [frontend.worker.rtc.core :as rtc.core]
             [missionary.core :as m]
-            [frontend.worker.state :as worker-state]))
+            [frontend.worker.state :as worker-state]
+            [meander.epsilon :as me]))
 
 (def new-task--upload-example-graph
-  (rtc.core/new-task--upload-graph const/test-token const/test-repo const/test-repo))
+  (rtc.core/new-task--upload-graph const/test-token const/test-repo const/test-graph-name))
 
 (defn new-task--wait-creating-graph
   [graph-uuid]
@@ -31,29 +32,53 @@
       (doseq [graph test-graphs]
         (m/? (rtc.core/new-task--delete-graph const/test-token (:graph-uuid graph)))))))
 
+(def new-task--get-remote-example-graph-uuid
+  (c.m/backoff
+   (take 5 c.m/delays)
+   (m/sp
+    (let [graphs (m/? (rtc.core/new-task--get-graphs const/test-token))
+          graph
+          (some (fn [graph]
+                  (when (and (= const/test-graph-name (:graph-name graph))
+                             (not= "deleting" (:graph-status graph)))
+                    graph))
+                graphs)]
+      (when-not graph
+        (throw (ex-info "wait remote-example-graph" {:missionary/retry true})))
+      (when (= "creating" (:graph-status graph))
+        (throw (ex-info "wait remote-example-graph (creating)" {:missionary/retry true})))
+      (:graph-uuid graph)))))
+
 (defn new-task--download-graph
   [graph-uuid graph-name]
   (m/sp
-    (let [download-info-uuid (m/? (rtc.core/new-task--request-download-graph const/test-token graph-uuid))
-          result (m/? (rtc.core/new-task--wait-download-info-ready const/test-token download-info-uuid graph-uuid 60000))
-          {:keys [_download-info-uuid
-                  download-info-s3-url
-                  _download-info-tx-instant
-                  _download-info-t
-                  _download-info-created-at]} result]
-      (when (= result :timeout)
-        (throw (ex-info "wait download-info-ready timeout" {})))
-      (m/? (rtc.core/new-task--download-graph-from-s3
-            graph-uuid graph-name download-info-s3-url)))))
+   (let [download-info-uuid (m/? (rtc.core/new-task--request-download-graph const/test-token graph-uuid))
+         result (m/? (rtc.core/new-task--wait-download-info-ready const/test-token download-info-uuid graph-uuid 60000))
+         {:keys [_download-info-uuid
+                 download-info-s3-url
+                 _download-info-tx-instant
+                 _download-info-t
+                 _download-info-created-at]} result]
+     (when (= result :timeout)
+       (throw (ex-info "wait download-info-ready timeout" {})))
+     (m/? (rtc.core/new-task--download-graph-from-s3
+           graph-uuid graph-name download-info-s3-url)))))
 
 (defn get-downloaded-test-conn
   []
   (worker-state/get-datascript-conn const/downloaded-test-repo))
 
-(defn get-downloaded-test-conn2
-  []
-  (worker-state/get-datascript-conn const/downloaded-test-repo2))
-
 (defn get-example-test-conn
   []
   (worker-state/get-datascript-conn const/test-repo))
+
+(defn simplify-client-op
+  [client-op]
+  #_:clj-kondo/ignore
+  (me/find
+   client-op
+    [?op-type _ {:block-uuid ?block-uuid :av-coll [[!a !v _ !add] ...]}]
+    [?op-type ?block-uuid (map vector !a !v !add)]
+
+    [?op-type _ {:block-uuid ?block-uuid}]
+    [?op-type ?block-uuid]))