diff --git a/.github/workflows/nightly-build.yml b/.github/workflows/nightly-build.yml
index 199f15ba23..8d5d2237d2 100644
--- a/.github/workflows/nightly-build.yml
+++ b/.github/workflows/nightly-build.yml
@@ -35,7 +35,7 @@ jobs:
       - name: Deploy nightly release
         uses: marvinpinto/action-automatic-releases@latest
         with:
-          repo_token: "${{ secrets.NIGHTLY_BUILD }}"
+          repo_token: "${{ secrets.GITHUB_TOKEN }}"
           automatic_release_tag: 'nightly'
           prerelease: true
           title: "Lingua Franca Nightly"
diff --git a/core/src/main/java/org/lflang/federated/launcher/FedLauncherGenerator.java b/core/src/main/java/org/lflang/federated/launcher/FedLauncherGenerator.java
index 332ee003c6..85e4e43b8f 100644
--- a/core/src/main/java/org/lflang/federated/launcher/FedLauncherGenerator.java
+++ b/core/src/main/java/org/lflang/federated/launcher/FedLauncherGenerator.java
@@ -280,6 +280,7 @@ private String getSetupCode() {
         "# Set a trap to kill all background jobs on error or control-C",
         "# Use two distinct traps so we can see which signal causes this.",
         "cleanup() {",
+        "    tmux kill-session -t plasma",
         "    if [ \"$EXITED_SUCCESSFULLY\" = true ] ; then",
         "        exit 0",
         "    else",
@@ -293,6 +294,7 @@ private String getSetupCode() {
         "}",
         "",
         "trap 'cleanup; exit' EXIT",
+        "tmux new -d -s plasma plasma_store -m 4000000000 -s /tmp/plasma",
         "",
         "# Create a random 48-byte text ID for this federation.",
         "# The likelihood of two federations having the same ID is 1/16,777,216 (1/2^24).",
diff --git a/core/src/main/java/org/lflang/federated/serialization/FedNativePythonSerialization.java b/core/src/main/java/org/lflang/federated/serialization/FedNativePythonSerialization.java
index 971f37b879..67a60710c8 100644
--- a/core/src/main/java/org/lflang/federated/serialization/FedNativePythonSerialization.java
+++ b/core/src/main/java/org/lflang/federated/serialization/FedNativePythonSerialization.java
@@ -63,28 +63,31 @@ public StringBuilder generateNetworkSerializerCode(String varName, String origin
     serializerCode.append(
         "if (global_pickler == NULL) lf_print_error_and_exit(\"The pickle module is not"
             + " loaded.\");\n");
-    // Define the serialized PyObject
-    serializerCode
-        .append(
-            "PyObject* serialized_pyobject = PyObject_CallMethod(global_pickler, \"dumps\", \"O\","
-                + " ")
-        .append(varName)
-        .append(");\n");
-
-    // Error check
-    serializerCode.append("if (serialized_pyobject == NULL) {\n");
-    serializerCode.append("    if (PyErr_Occurred()) PyErr_Print();\n");
+    // Check that global_serializer is not null
     serializerCode.append(
-        "    lf_print_error_and_exit(\"Could not serialize serialized_pyobject.\");\n");
-    serializerCode.append("}\n");
-
-    serializerCode.append("Py_buffer " + serializedVarName + ";\n");
+        "if (global_serializer == NULL) lf_print_error_and_exit(\"The globalserializer module is"
+            + " not loaded.\");\n");
+    // Define the serialized PyObject
     serializerCode.append(
-        "int returnValue = PyBytes_AsStringAndSize(serialized_pyobject, (char**)&"
+        "PyObject *serializer_serialize = PyObject_GetAttrString(global_serializer,"
+            + " \"serialize\");\n"
+            + "PyObject *args = PyTuple_Pack(1, "
+            + varName
+            + ");\n"
+            + "PyObject *serialized_pyobject = PyObject_CallObject(serializer_serialize, args);\n"
+            + "if (serialized_pyobject == NULL) {\n"
+            + "    if (PyErr_Occurred()) PyErr_Print();\n"
+            + "    lf_print_error_and_exit(\"Could not serialize object.\");\n"
+            + "}\n"
+            + "Py_buffer "
+            + serializedVarName
+            + ";\n"
+            + "int returnValue = PyBytes_AsStringAndSize(serialized_pyobject, (char**)&"
             + serializedVarName
             + ".buf, &"
             + serializedVarName
-            + ".len);\n");
+            + ".len);\n"
+            + "");
     // Error check
     serializerCode.append("if (returnValue == -1) {\n");
     serializerCode.append("    if (PyErr_Occurred()) PyErr_Print();\n");
@@ -105,11 +108,18 @@ public StringBuilder generateNetworkDeserializerCode(String varName, String targ
         .append("->token->value, ")
         .append(varName)
         .append("->token->length);\n");
+    // Check that global_serializer is not null
+    deserializerCode.append(
+        "if (global_serializer == NULL) lf_print_error_and_exit(\"The globalserializer module is"
+            + " not loaded.\");\n");
     // Deserialize using Pickle
     deserializerCode.append(
-        "PyObject* "
+        "PyObject *serializer_deserialize = PyObject_GetAttrString(global_serializer,"
+            + " \"deserialize\");\n"
+            + "PyObject *args = PyTuple_Pack(1, message_byte_array);\n"
+            + "PyObject *"
             + deserializedVarName
-            + " = PyObject_CallMethod(global_pickler, \"loads\", \"O\", message_byte_array);\n");
+            + " = PyObject_CallObject(serializer_deserialize, args);\n");
     // Error check
     deserializerCode.append("if (" + deserializedVarName + " == NULL) {\n");
     deserializerCode.append("    if (PyErr_Occurred()) PyErr_Print();\n");
diff --git a/core/src/main/resources/lib/c/reactor-c b/core/src/main/resources/lib/c/reactor-c
index 8fe0436ebf..0b88a5e9fb 160000
--- a/core/src/main/resources/lib/c/reactor-c
+++ b/core/src/main/resources/lib/c/reactor-c
@@ -1 +1 @@
-Subproject commit 8fe0436ebf8bffb53dfc3373c093c0a80e88a6a2
+Subproject commit 0b88a5e9fb391acc061e1aa2447c4cd3540cb15e