diff --git a/src/plugins/projectexplorer/runcontrol.cpp b/src/plugins/projectexplorer/runcontrol.cpp
index 0af6282b1c3..5c1cec77e44 100644
--- a/src/plugins/projectexplorer/runcontrol.cpp
+++ b/src/plugins/projectexplorer/runcontrol.cpp
@@ -55,6 +55,8 @@
 #include <QLoggingCategory>
 #include <QSettings>
 
+#include <devicesupport/desktopdevice.h>
+
 #if defined (WITH_JOURNALD)
 #include "journaldwatcher.h"
 #endif
@@ -1098,8 +1100,7 @@ void SimpleTargetRunner::start()
     m_launcher.disconnect(this);
     m_launcher.setUseTerminal(m_useTerminal);
 
-    const bool isDesktop = m_device.isNull()
-            || m_device->type() == ProjectExplorer::Constants::DESKTOP_DEVICE_TYPE;
+    const bool isDesktop = m_device.isNull() || m_device.dynamicCast<const DesktopDevice>();
     const QString rawDisplayName = m_runnable.displayName();
     const QString displayName = isDesktop
             ? QDir::toNativeSeparators(rawDisplayName)
diff --git a/src/plugins/webassembly/webassemblydevice.cpp b/src/plugins/webassembly/webassemblydevice.cpp
index 6f3404990f8..e79d67a0f41 100644
--- a/src/plugins/webassembly/webassemblydevice.cpp
+++ b/src/plugins/webassembly/webassemblydevice.cpp
@@ -26,6 +26,12 @@
 #include "webassemblyconstants.h"
 #include "webassemblydevice.h"
 
+#include <projectexplorer/devicesupport/deviceprocess.h>
+#include <projectexplorer/runcontrol.h>
+
+using namespace ProjectExplorer;
+using namespace Utils;
+
 namespace WebAssembly {
 namespace Internal {
 
@@ -51,15 +57,6 @@ Utils::OsType WebAssemblyDevice::osType() const
     return Utils::OsTypeOther;
 }
 
-ProjectExplorer::IDeviceWidget *WebAssemblyDevice::createWidget()
-{
-    return nullptr;
-}
-
-ProjectExplorer::DeviceProcessSignalOperation::Ptr WebAssemblyDevice::signalOperation() const
-{
-    return {};
-}
 
 WebAssemblyDeviceFactory::WebAssemblyDeviceFactory()
     : ProjectExplorer::IDeviceFactory(Constants::WEBASSEMBLY_DEVICE_TYPE)
diff --git a/src/plugins/webassembly/webassemblydevice.h b/src/plugins/webassembly/webassemblydevice.h
index a231cb66e27..114800f8aac 100644
--- a/src/plugins/webassembly/webassemblydevice.h
+++ b/src/plugins/webassembly/webassemblydevice.h
@@ -25,15 +25,14 @@
 
 #pragma once
 
-#include <projectexplorer/devicesupport/idevice.h>
-#include <projectexplorer/devicesupport/idevicefactory.h>
+#include <projectexplorer/devicesupport/desktopdevice.h>
 
 #include <QCoreApplication>
 
 namespace WebAssembly {
 namespace Internal {
 
-class WebAssemblyDevice : public ProjectExplorer::IDevice
+class WebAssemblyDevice : public ProjectExplorer::DesktopDevice
 {
     Q_DECLARE_TR_FUNCTIONS(WebAssembly::Internal::WebAssemblyDevice)
 
@@ -42,9 +41,6 @@ public:
 
     Utils::OsType osType() const override;
 
-    ProjectExplorer::IDeviceWidget *createWidget() override;
-    ProjectExplorer::DeviceProcessSignalOperation::Ptr signalOperation() const override;
-
 private:
     WebAssemblyDevice();
 };
diff --git a/src/plugins/webassembly/webassemblyplugin.cpp b/src/plugins/webassembly/webassemblyplugin.cpp
index 840381c02be..5fa3c4a9836 100644
--- a/src/plugins/webassembly/webassemblyplugin.cpp
+++ b/src/plugins/webassembly/webassemblyplugin.cpp
@@ -36,9 +36,6 @@
 
 #include <projectexplorer/devicesupport/devicemanager.h>
 
-#include <QMenu>
-#include <QMessageBox>
-
 namespace WebAssembly {
 namespace Internal {
 
@@ -49,6 +46,7 @@ public:
     WebAssemblyDeviceFactory deviceFactory;
     WebAssemblyQtVersionFactory qtVersionFactory;
     EmrunRunConfigurationFactory emrunRunConfigurationFactory;
+    EmrunRunWorkerFactory emrunRunWorkerFactory;
 };
 
 static WebAssemblyPluginPrivate *dd = nullptr;
diff --git a/src/plugins/webassembly/webassemblyrunconfiguration.cpp b/src/plugins/webassembly/webassemblyrunconfiguration.cpp
index 563133b9bbd..a2b5a7fb500 100644
--- a/src/plugins/webassembly/webassemblyrunconfiguration.cpp
+++ b/src/plugins/webassembly/webassemblyrunconfiguration.cpp
@@ -28,63 +28,103 @@
 #include "webassemblyconstants.h"
 
 #include <projectexplorer/buildconfiguration.h>
+#include <projectexplorer/devicesupport/devicemanager.h>
+#include <projectexplorer/devicesupport/deviceusedportsgatherer.h>
+#include <projectexplorer/project.h>
+#include <projectexplorer/runcontrol.h>
 #include <projectexplorer/target.h>
 
-#include <QDir>
+using namespace ProjectExplorer;
+using namespace Utils;
 
 namespace WebAssembly {
 namespace Internal {
 
-EmrunRunConfiguration::EmrunRunConfiguration(ProjectExplorer::Target *target,
-                                             Core::Id id)
-    : ProjectExplorer::CustomExecutableRunConfiguration(target, id)
+static CommandLine emrunCommand(Target *target, const QString &browser, const QString &port)
 {
-    auto executableAspect = aspect<ProjectExplorer::ExecutableAspect>();
-    executableAspect->setExecutable(
-                target->activeBuildConfiguration()->environment().searchInPath("python"));
-    executableAspect->setVisible(false);
+    BuildConfiguration *bc = target->activeBuildConfiguration();
+    const QFileInfo emrunScript = bc->environment().searchInPath("emrun").toFileInfo();
+    auto html = bc->buildDirectory().pathAppended(target->project()->displayName() + ".html");
 
-    auto workingDirectoryAspect = aspect<ProjectExplorer::WorkingDirectoryAspect>();
-    workingDirectoryAspect->setVisible(false);
-
-    auto terminalAspect = aspect<ProjectExplorer::TerminalAspect>();
-    terminalAspect->setVisible(false);
-
-    auto argumentsAspect = aspect<ProjectExplorer::ArgumentsAspect>();
-    argumentsAspect->setVisible(false);
-
-    auto webBrowserAspect = addAspect<WebBrowserSelectionAspect>(target);
-    connect(webBrowserAspect, &WebBrowserSelectionAspect::changed,
-            this, &EmrunRunConfiguration::updateConfiguration);
-    connect(target->activeBuildConfiguration(),
-            &ProjectExplorer::BuildConfiguration::buildDirectoryChanged,
-            this, &EmrunRunConfiguration::updateConfiguration);
-
-    addAspect<EffectiveEmrunCallAspect>();
-
-    updateConfiguration();
+    return CommandLine(bc->environment().searchInPath("python"), {
+            emrunScript.absolutePath() + "/" + emrunScript.baseName() + ".py",
+            "--browser", browser,
+            "--port", port,
+            "--no_emrun_detect",
+            html.toString()
+        });
 }
 
+// Runs a webassembly application via emscripten's "emrun" tool
+// https://emscripten.org/docs/compiling/Running-html-files-with-emrun.html
+class EmrunRunConfiguration : public ProjectExplorer::RunConfiguration
+{
+public:
+    EmrunRunConfiguration(Target *target, Core::Id id)
+            : RunConfiguration(target, id)
+    {
+        auto webBrowserAspect = addAspect<WebBrowserSelectionAspect>(target);
+
+        auto effectiveEmrunCall = addAspect<BaseStringAspect>();
+        effectiveEmrunCall->setLabelText(tr("Effective emrun call:"));
+        effectiveEmrunCall->setDisplayStyle(BaseStringAspect::TextEditDisplay);
+        effectiveEmrunCall->setReadOnly(true);
+
+        auto updateConfiguration = [target, effectiveEmrunCall, webBrowserAspect] {
+            effectiveEmrunCall->setValue(emrunCommand(target,
+                                                      webBrowserAspect->currentBrowser(),
+                                                      "<port>").toUserOutput());
+        };
+
+        updateConfiguration();
+
+        connect(webBrowserAspect, &WebBrowserSelectionAspect::changed,
+                this, updateConfiguration);
+        connect(target->activeBuildConfiguration(), &BuildConfiguration::buildDirectoryChanged,
+                this, updateConfiguration);
+    }
+};
+
+class EmrunRunWorker : public SimpleTargetRunner
+{
+public:
+    EmrunRunWorker(RunControl *runControl)
+        : SimpleTargetRunner(runControl)
+    {
+        m_portsGatherer = new PortsGatherer(runControl);
+        addStartDependency(m_portsGatherer);
+    }
+
+    void start() final
+    {
+        CommandLine cmd = emrunCommand(runControl()->target(),
+                                       runControl()->aspect<WebBrowserSelectionAspect>()->currentBrowser(),
+                                       m_portsGatherer->findPort().toString());
+        Runnable r;
+        r.setCommandLine(cmd);
+        setRunnable(r);
+
+        SimpleTargetRunner::start();
+    }
+
+    PortsGatherer *m_portsGatherer;
+};
+
+
+// Factories
+
 EmrunRunConfigurationFactory::EmrunRunConfigurationFactory()
-    : ProjectExplorer::FixedRunConfigurationFactory(
-          EmrunRunConfiguration::tr("Launch with emrun"))
+    : FixedRunConfigurationFactory(EmrunRunConfiguration::tr("Launch with emrun"))
 {
     registerRunConfiguration<EmrunRunConfiguration>(Constants::WEBASSEMBLY_RUNCONFIGURATION_EMRUN);
     addSupportedTargetDeviceType(Constants::WEBASSEMBLY_DEVICE_TYPE);
 }
 
-void EmrunRunConfiguration::updateConfiguration()
+EmrunRunWorkerFactory::EmrunRunWorkerFactory()
 {
-    const QFileInfo emrunScript =
-            target()->activeBuildConfiguration()->environment().searchInPath("emrun").toFileInfo();
-    const QString arguments =
-            emrunScript.absolutePath() + "/" + emrunScript.baseName() + ".py "
-            + QString("--browser %1 ").arg(aspect<WebBrowserSelectionAspect>()->currentBrowser())
-            + "--no_emrun_detect "
-            + target()->activeBuildConfiguration()->buildDirectory().toString()
-            + macroExpander()->expandProcessArgs("/%{CurrentProject:Name}.html");
-    aspect<ProjectExplorer::ArgumentsAspect>()->setArguments(arguments);
-    aspect<EffectiveEmrunCallAspect>()->setValue(commandLine().toUserOutput());
+    setProducer([](RunControl *rc) { return new EmrunRunWorker(rc); });
+    addSupportedRunMode(ProjectExplorer::Constants::NORMAL_RUN_MODE);
+    addSupportedRunConfiguration(Constants::WEBASSEMBLY_RUNCONFIGURATION_EMRUN);
 }
 
 } // namespace Internal
diff --git a/src/plugins/webassembly/webassemblyrunconfiguration.h b/src/plugins/webassembly/webassemblyrunconfiguration.h
index df59c241802..68bc2ae6c25 100644
--- a/src/plugins/webassembly/webassemblyrunconfiguration.h
+++ b/src/plugins/webassembly/webassemblyrunconfiguration.h
@@ -25,31 +25,23 @@
 
 #pragma once
 
-#include <projectexplorer/customexecutablerunconfiguration.h>
-
-namespace ProjectExplorer {
-class Target;
-}
+#include <projectexplorer/runconfiguration.h>
+#include <projectexplorer/runcontrol.h>
 
 namespace WebAssembly {
 namespace Internal {
 
-// Runs a webassembly application via emscripten's "emrun" tool
-// https://emscripten.org/docs/compiling/Running-html-files-with-emrun.html
-class EmrunRunConfiguration : public ProjectExplorer::CustomExecutableRunConfiguration
-{
-public:
-    EmrunRunConfiguration(ProjectExplorer::Target *target, Core::Id id);
-
-private:
-    void updateConfiguration();
-};
-
 class EmrunRunConfigurationFactory : public ProjectExplorer::FixedRunConfigurationFactory
 {
 public:
     EmrunRunConfigurationFactory();
 };
 
+class EmrunRunWorkerFactory : public ProjectExplorer::RunWorkerFactory
+{
+public:
+    EmrunRunWorkerFactory();
+};
+
 } // namespace Internal
 } // namespace Webassembly
diff --git a/src/plugins/webassembly/webassemblyrunconfigurationaspects.cpp b/src/plugins/webassembly/webassemblyrunconfigurationaspects.cpp
index 0cee86531d0..aacbc677509 100644
--- a/src/plugins/webassembly/webassemblyrunconfigurationaspects.cpp
+++ b/src/plugins/webassembly/webassemblyrunconfigurationaspects.cpp
@@ -103,12 +103,5 @@ QString WebBrowserSelectionAspect::currentBrowser() const
     return m_currentBrowser;
 }
 
-EffectiveEmrunCallAspect::EffectiveEmrunCallAspect()
-{
-    setLabelText(tr("Effective emrun call:"));
-    setDisplayStyle(BaseStringAspect::TextEditDisplay);
-    setReadOnly(true);
-}
-
 } // namespace Internal
 } // namespace Webassembly