diff --git a/firmware/config/engines/custom_engine.cpp b/firmware/config/engines/custom_engine.cpp
index 26857543ad..288b5d927e 100644
--- a/firmware/config/engines/custom_engine.cpp
+++ b/firmware/config/engines/custom_engine.cpp
@@ -626,27 +626,26 @@ void mreSecondaryCan(DECLARE_CONFIG_PARAMETER_SIGNATURE) {
 //	engineConfiguration->afr.hwChannel = EFI_ADC_14;
 
 
-	strncpy(config->luaScript, "function onTick()\n"
-			"txPayload = {}\n"
-			"function onTick()\n"
-"  auxV = getAuxAnalog(0)\n"
-"  print('Hello analog ' .. auxV )\n"
-"  -- first byte: integer part, would be autoboxed to int\n"
-"  txPayload[1] = auxV\n"
-"  -- second byte: fractional part, would be autoboxed to int, overflow would be ignored\n"
-"  txPayload[2] = auxV * 256;\n"
-"  auxV = getAuxAnalog(1)\n"
-"  print('Hello analog ' .. auxV )\n"
-"  txPayload[3] = auxV\n"
-"  txPayload[4] = auxV * 256;\n"
-"  auxV = getAuxAnalog(2)\n"
-"  print('Hello analog ' .. auxV )\n"
-"  txPayload[5] = auxV\n"
-"  txPayload[6] = auxV * 256;\n"
-"  txCan(1, 0x600, 1, txPayload)\n"
-"end"
-
-			"end", efi::size(config->luaScript));
+	strncpy(config->luaScript, R"(
+txPayload = {}
+function onTick()
+  auxV = getAuxAnalog(0)
+  print('Hello analog ' .. auxV )
+  -- first byte: integer part, would be autoboxed to int
+  txPayload[1] = auxV
+  -- second byte: fractional part, would be autoboxed to int, overflow would be ignored
+  txPayload[2] = auxV * 256;
+  auxV = getAuxAnalog(1)
+  print('Hello analog ' .. auxV )
+  txPayload[3] = auxV
+  txPayload[4] = auxV * 256;
+  auxV = getAuxAnalog(2)
+  print('Hello analog ' .. auxV )
+  txPayload[5] = auxV
+  txPayload[6] = auxV * 256;
+  txCan(1, 0x600, 1, txPayload)
+end
+)", efi::size(config->luaScript));
 
 }
 
@@ -830,6 +829,45 @@ void setHellenDefaultVrThresholds(DECLARE_CONFIG_PARAMETER_SIGNATURE) {
 	}
 }
 
+void proteusLuaDemo(DECLARE_CONFIG_PARAMETER_SIGNATURE) {
+#if HW_PROTEUS
+	engineConfiguration->tpsMin = 889;
+	engineConfiguration->tpsMax = 67;
+
+	engineConfiguration->tps1SecondaryMin = 105;
+	engineConfiguration->tps1SecondaryMax = 933;
+
+	strcpy(engineConfiguration->scriptCurveName[3 - 1], "bias");
+
+	/**
+	 * for this demo I use ETB just a sample object to control with PID. No reasonable person should consider actually using
+	 * Lua for actual intake ETB control while driving around the racing track - hard-coded ETB control is way smarter!
+	 */
+	static const float defaultBiasBins[] = {
+		0, 1, 2, 4, 7, 98, 99, 100
+	};
+	static const float defaultBiasValues[] = {
+		-20, -18, -17, 0, 20, 21, 22, 25
+	};
+
+	engineConfiguration->luaOutputPins[0] = GPIOD_12;
+
+	copyArray(CONFIG(scriptCurve3Bins), defaultBiasBins);
+	copyArray(CONFIG(scriptCurve3), defaultBiasValues);
+
+
+	// ETB direction #1 PD10
+	// ETB control PD12
+	// ETB disable PD11
+
+	auto script = R"(
+						function testFunc()
+							return 5.5
+						end
+				)";
+#endif
+}
+
 #if HW_HELLEN
 void setHellen144LedPins(DECLARE_CONFIG_PARAMETER_SIGNATURE) {
 #ifdef EFI_COMMUNICATION_PIN
diff --git a/firmware/config/engines/custom_engine.h b/firmware/config/engines/custom_engine.h
index 9f065ead8f..d2e0903480 100644
--- a/firmware/config/engines/custom_engine.h
+++ b/firmware/config/engines/custom_engine.h
@@ -29,6 +29,7 @@ void mreBCM(DECLARE_CONFIG_PARAMETER_SIGNATURE);
  * set engine_type 42
  */
 void proteusBoardTest(DECLARE_CONFIG_PARAMETER_SIGNATURE);
+void proteusLuaDemo(DECLARE_CONFIG_PARAMETER_SIGNATURE);
 
 void setTest33816EngineConfiguration(DECLARE_CONFIG_PARAMETER_SIGNATURE);
 void setBoschHDEV_5_injectors(DECLARE_CONFIG_PARAMETER_SIGNATURE);
diff --git a/firmware/controllers/algo/engine_configuration.cpp b/firmware/controllers/algo/engine_configuration.cpp
index 36367005ef..457564eb13 100644
--- a/firmware/controllers/algo/engine_configuration.cpp
+++ b/firmware/controllers/algo/engine_configuration.cpp
@@ -940,6 +940,9 @@ void resetConfigurationExt(configuration_callback_t boardCallback, engine_type_e
 	case PROTEUS_QC_TEST_BOARD:
 		proteusBoardTest(PASS_CONFIG_PARAMETER_SIGNATURE);
 		break;
+	case PROTEUS_LUA_DEMO:
+		proteusLuaDemo(PASS_CONFIG_PARAMETER_SIGNATURE);
+		break;
 	case PROTEUS_BMW_M73:
 		setEngineBMW_M73_Proteus(PASS_CONFIG_PARAMETER_SIGNATURE);
 		break;