diff --git a/apps/Makefile b/apps/Makefile
index d96bbbbb3..65af60ae4 100644
--- a/apps/Makefile
+++ b/apps/Makefile
@@ -38,8 +38,9 @@ snapshots_construction = $(foreach i,$(snapshots),,m_snapshot$(subst :,,$(i))())
 snapshots_list = $(foreach i,$(snapshots),,&m_snapshot$(subst :,,$(i)))
 snapshots_count = $(words $(snapshots))
 snapshot_includes = $(foreach i,$(snapshot_headers),-include $(i) )
+epsilon_app_names = '$(foreach i,${EPSILON_APPS},"$(i)", )'
 
-apps/apps_container_storage.o apps/main.o: CXXFLAGS += $(snapshot_includes) -DAPPS_CONTAINER_SNAPSHOT_DECLARATIONS="$(snapshots_declaration)" -DAPPS_CONTAINER_SNAPSHOT_CONSTRUCTORS="$(snapshots_construction)" -DAPPS_CONTAINER_SNAPSHOT_LIST="$(snapshots_list)" -DAPPS_CONTAINER_SNAPSHOT_COUNT=$(snapshots_count)
+apps/apps_container_storage.o apps/main.o: CXXFLAGS += $(snapshot_includes) -DAPPS_CONTAINER_SNAPSHOT_DECLARATIONS="$(snapshots_declaration)" -DAPPS_CONTAINER_SNAPSHOT_CONSTRUCTORS="$(snapshots_construction)" -DAPPS_CONTAINER_SNAPSHOT_LIST="$(snapshots_list)" -DAPPS_CONTAINER_SNAPSHOT_COUNT=$(snapshots_count) -DEPSILON_APPS_NAMES=$(epsilon_app_names)
 
 
 i18n_files += $(addprefix apps/language_,$(addsuffix .universal.i18n, $(EPSILON_I18N)))
diff --git a/apps/code/app.cpp b/apps/code/app.cpp
index f59b1b285..dcbd81afa 100644
--- a/apps/code/app.cpp
+++ b/apps/code/app.cpp
@@ -18,6 +18,14 @@ const Image * App::Descriptor::icon() {
   return ImageStore::CodeIcon;
 }
 
+App::Snapshot::Snapshot() :
+#if EPSILON_GETOPT
+  m_lockOnConsole(false),
+#endif
+  m_scriptStore()
+{
+}
+
 App * App::Snapshot::unpack(Container * container) {
   return new App(container, this);
 }
@@ -35,10 +43,40 @@ ScriptStore * App::Snapshot::scriptStore() {
   return &m_scriptStore;
 }
 
+#if EPSILON_GETOPT
+bool App::Snapshot::lockOnConsole() const {
+  return m_lockOnConsole;
+}
+
+void App::Snapshot::setOpt(const char * name, char * value) {
+  if (strcmp(name, "script") == 0) {
+      m_scriptStore.deleteAllScripts();
+      char * separator = strchr(value, ':');
+      if (!separator) {
+        return;
+      }
+      *separator = 0;
+      const char * scriptName = value;
+      const char * scriptContent = separator+1;
+      Code::ScriptTemplate script(scriptName, scriptContent);
+      m_scriptStore.addScriptFromTemplate(&script);
+      return;
+  }
+  if (strcmp(name, "lock-on-console") == 0) {
+    m_lockOnConsole = true;
+    return;
+  }
+}
+#endif
+
 App::App(Container * container, Snapshot * snapshot) :
   ::App(container, snapshot, &m_codeStackViewController, I18n::Message::Warning),
   m_listFooter(&m_codeStackViewController, &m_menuController, &m_menuController, ButtonRowController::Position::Bottom, ButtonRowController::Style::EmbossedGrey, ButtonRowController::Size::Large),
-  m_menuController(&m_listFooter, snapshot->scriptStore(), &m_listFooter),
+  m_menuController(&m_listFooter, snapshot->scriptStore(), &m_listFooter
+#if EPSILON_GETOPT
+      , snapshot->lockOnConsole()
+#endif
+      ),
   m_codeStackViewController(&m_modalViewController, &m_listFooter),
   m_toolboxActionForTextArea([](void * sender, const char * text) {
       TextArea * textArea = static_cast<TextArea *>(sender);
diff --git a/apps/code/app.h b/apps/code/app.h
index 5223df7ba..0357bd367 100644
--- a/apps/code/app.h
+++ b/apps/code/app.h
@@ -21,11 +21,19 @@ public:
   };
   class Snapshot : public ::App::Snapshot {
   public:
+    Snapshot();
     App * unpack(Container * container) override;
     void reset() override;
     Descriptor * descriptor() override;
     ScriptStore * scriptStore();
+#if EPSILON_GETOPT
+    bool lockOnConsole() const;
+    void setOpt(const char * name, char * value) override;
+#endif
   private:
+#if EPSILON_GETOPT
+    bool m_lockOnConsole;
+#endif
     ScriptStore m_scriptStore;
   };
   StackViewController * stackViewController() { return &m_codeStackViewController; }
diff --git a/apps/code/console_controller.cpp b/apps/code/console_controller.cpp
index 27056381f..99aeee0c3 100644
--- a/apps/code/console_controller.cpp
+++ b/apps/code/console_controller.cpp
@@ -16,7 +16,11 @@ namespace Code {
 
 static const char * sStandardPromptText = ">>> ";
 
-ConsoleController::ConsoleController(Responder * parentResponder, ScriptStore * scriptStore) :
+ConsoleController::ConsoleController(Responder * parentResponder, ScriptStore * scriptStore
+#if EPSILON_GETOPT
+      , bool lockOnConsole
+#endif
+    ) :
   ViewController(parentResponder),
   SelectableTableViewDataSource(),
   TextFieldDelegate(),
@@ -28,6 +32,9 @@ ConsoleController::ConsoleController(Responder * parentResponder, ScriptStore *
   m_pythonHeap(nullptr),
   m_scriptStore(scriptStore),
   m_sandboxController(this)
+#if EPSILON_GETOPT
+      , m_locked(lockOnConsole)
+#endif
 {
   m_editCell.setPrompt(sStandardPromptText);
   for (int i = 0; i < k_numberOfLineCells; i++) {
@@ -171,6 +178,11 @@ bool ConsoleController::handleEvent(Ion::Events::Event event) {
     m_selectableTableView.selectCellAtLocation(0, firstDeletedLineIndex);
     return true;
   }
+#if EPSILON_GETOPT
+  if (m_locked && (event == Ion::Events::Home || event == Ion::Events::Back)) {
+    return true;
+  }
+#endif
   return false;
 }
 
@@ -293,7 +305,15 @@ bool ConsoleController::textFieldDidAbortEditing(TextField * textField, const ch
   if (inputRunLoopActive()) {
     askInputRunLoopTermination();
   } else {
-    stackViewController()->pop();
+#if EPSILON_GETOPT
+    if (!m_locked) {
+#endif
+      stackViewController()->pop();
+#if EPSILON_GETOPT
+    } else {
+      textField->setEditing(true);
+    }
+#endif
   }
   return true;
 }
diff --git a/apps/code/console_controller.h b/apps/code/console_controller.h
index d0743bcba..2db1b2333 100644
--- a/apps/code/console_controller.h
+++ b/apps/code/console_controller.h
@@ -16,7 +16,11 @@ class ConsoleController : public ViewController, public ListViewDataSource, publ
 public:
   static constexpr KDText::FontSize k_fontSize = KDText::FontSize::Large;
 
-  ConsoleController(Responder * parentResponder, ScriptStore * scriptStore);
+  ConsoleController(Responder * parentResponder, ScriptStore * scriptStore
+#if EPSILON_GETOPT
+      , bool m_lockOnConsole
+#endif
+      );
   ~ConsoleController();
   ConsoleController(const ConsoleController& other) = delete;
   ConsoleController(ConsoleController&& other) = delete;
@@ -64,6 +68,11 @@ public:
   void printText(const char * text, size_t length) override;
   const char * inputText(const char * prompt) override;
 
+#if EPSILON_GETOPT
+  bool locked() const {
+    return m_locked;
+  }
+#endif
 private:
   bool inputRunLoopActive() { return m_inputRunLoopActive; }
   void askInputRunLoopTermination() { m_inputRunLoopActive = false; }
@@ -94,6 +103,9 @@ private:
   ScriptStore * m_scriptStore;
   SandboxController m_sandboxController;
   bool m_inputRunLoopActive;
+#if EPSILON_GETOPT
+  bool m_locked;
+#endif
 };
 }
 
diff --git a/apps/code/menu_controller.cpp b/apps/code/menu_controller.cpp
index 5c3444d19..93a0f910e 100644
--- a/apps/code/menu_controller.cpp
+++ b/apps/code/menu_controller.cpp
@@ -7,7 +7,11 @@
 
 namespace Code {
 
-MenuController::MenuController(Responder * parentResponder, ScriptStore * scriptStore, ButtonRowController * footer) :
+MenuController::MenuController(Responder * parentResponder, ScriptStore * scriptStore, ButtonRowController * footer
+#if EPSILON_GETOPT
+      , bool lockOnConsole
+#endif
+    ) :
   ViewController(parentResponder),
   ButtonRowDelegate(nullptr, footer),
   m_scriptStore(scriptStore),
@@ -21,7 +25,11 @@ MenuController::MenuController(Responder * parentResponder, ScriptStore * script
     //TODO: Pop up warning message: not enough space to load Python
   }, this), KDText::FontSize::Large),
   m_selectableTableView(this, this, 0, 1, 0, 0, 0, 0, this, this, false),
-  m_consoleController(parentResponder, m_scriptStore),
+  m_consoleController(parentResponder, m_scriptStore
+#if EPSILON_GETOPT
+      , lockOnConsole
+#endif
+      ),
   m_scriptParameterController(nullptr, I18n::Message::ScriptOptions, m_scriptStore, this),
   m_editorController(this),
   m_reloadConsoleWhenBecomingFirstResponder(false),
@@ -54,6 +62,12 @@ void MenuController::didBecomeFirstResponder() {
   }
   assert(m_selectableTableView.selectedRow() < m_scriptStore->numberOfScripts() + 1);
   app()->setFirstResponder(&m_selectableTableView);
+#if EPSILON_GETOPT
+  if (consoleController()->locked() && consoleController()->loadPythonEnvironment()) {
+    stackViewController()->push(consoleController());
+    return;
+  }
+#endif
 }
 
 void MenuController::viewWillAppear() {
diff --git a/apps/code/menu_controller.h b/apps/code/menu_controller.h
index e8cba8dc4..14eb90524 100644
--- a/apps/code/menu_controller.h
+++ b/apps/code/menu_controller.h
@@ -14,7 +14,11 @@ class ScriptParameterController;
 
 class MenuController : public ViewController, public TableViewDataSource, public SelectableTableViewDataSource, public SelectableTableViewDelegate, public TextFieldDelegate, public ButtonRowDelegate {
 public:
-  MenuController(Responder * parentResponder, ScriptStore * scriptStore, ButtonRowController * footer);
+  MenuController(Responder * parentResponder, ScriptStore * scriptStore, ButtonRowController * footer
+#if EPSILON_GETOPT
+      , bool m_lockOnConsole
+#endif
+      );
   ConsoleController * consoleController() { return &m_consoleController; }
   StackViewController * stackViewController();
   void renameSelectedScript();
diff --git a/apps/code/script_store.h b/apps/code/script_store.h
index d8c26c2b1..21d3ba89d 100644
--- a/apps/code/script_store.h
+++ b/apps/code/script_store.h
@@ -41,6 +41,7 @@ public:
   /* MicroPython::ScriptProvider */
   const char * contentOfScript(const char * name) override;
 
+  bool addScriptFromTemplate(const ScriptTemplate * scriptTemplate);
 private:
   static constexpr int k_fullFreeSpaceSizeLimit = 50;
   // If m_accordion's free space has a size smaller than
@@ -49,7 +50,6 @@ private:
   static constexpr size_t k_fileInput2ParseNodeStructKind = 1;
   static constexpr size_t k_functionDefinitionParseNodeStructKind = 3;
   static constexpr size_t k_expressionStatementParseNodeStructKind = 5;
-  bool addScriptFromTemplate(const ScriptTemplate * scriptTemplate);
   bool copyStaticScriptOnFreeSpace(const ScriptTemplate * scriptTemplate);
   int accordionIndexOfScriptAtIndex(int index) const;
   int accordionIndexOfMarkersOfScriptAtIndex(int index) const;
diff --git a/apps/main.cpp b/apps/main.cpp
index 45d19b249..943baf208 100644
--- a/apps/main.cpp
+++ b/apps/main.cpp
@@ -1,7 +1,35 @@
 #include "apps_container_storage.h"
+#include "global_preferences.h"
 
 AppsContainerStorage container;
 
 void ion_main(int argc, char * argv[]) {
+#if EPSILON_GETOPT
+  for (int i=1; i<argc; i++) {
+    if (argv[i][0] != '-' || argv[i][1] != '-') {
+      continue;
+    }
+    if (strcmp(argv[i], "--language") == 0 && argc > i+1) {
+      const char * languageIdentifiers[] = {"none", "en", "fr", "es", "de", "pt"};
+      const char * requestedLanguageId = argv[i+1];
+      for (int i=0; i<sizeof(languageIdentifiers)/sizeof(languageIdentifiers[0]); i++) {
+        if (strcmp(requestedLanguageId, languageIdentifiers[i]) == 0) {
+          GlobalPreferences::sharedGlobalPreferences()->setLanguage((I18n::Language)i);
+          break;
+        }
+      }
+      continue;
+    }
+    const char * appNames[] = {"home", EPSILON_APPS_NAMES};
+    for (int j = 0; j < container.numberOfApps(); j++) {
+      App::Snapshot * snapshot = container.appSnapshotAtIndex(j);
+      int cmp = strcmp(argv[i]+2, appNames[j]);
+      if (cmp == '-') {
+        snapshot->setOpt(argv[i]+2+strlen(appNames[j])+1, argv[i+1]);
+        break;
+      }
+    }
+  }
+#endif
   container.run();
 }
diff --git a/build/config.mak b/build/config.mak
index bbb0fd9cc..35ea9947a 100644
--- a/build/config.mak
+++ b/build/config.mak
@@ -8,6 +8,7 @@ EPSILON_ONBOARDING_APP ?= 1
 EPSILON_SOFTWARE_UPDATE_PROMPT ?= 1
 EPSILON_APPS ?= calculation graph sequence settings statistics probability regression code
 EPSILON_I18N ?= en fr es de pt
+EPSILON_GETOPT ?= 0
 
 include build/defaults.mak
 include build/platform.$(PLATFORM).mak
@@ -22,3 +23,4 @@ include build/toolchain.$(TOOLCHAIN).mak
 SFLAGS += -DDEBUG=$(DEBUG)
 SFLAGS += -DEPSILON_ONBOARDING_APP=$(EPSILON_ONBOARDING_APP)
 SFLAGS += -DEPSILON_SOFTWARE_UPDATE_PROMPT=$(EPSILON_SOFTWARE_UPDATE_PROMPT)
+SFLAGS += -DEPSILON_GETOPT=$(EPSILON_GETOPT)
diff --git a/build/platform.emscripten.mak b/build/platform.emscripten.mak
index 601ed2288..9029af715 100644
--- a/build/platform.emscripten.mak
+++ b/build/platform.emscripten.mak
@@ -3,3 +3,4 @@ USE_LIBA = 0
 EXE = js
 EPSILON_ONBOARDING_APP = 0
 EPSILON_SOFTWARE_UPDATE_PROMPT = 0
+EPSILON_GETOPT = 1
diff --git a/escher/include/escher/app.h b/escher/include/escher/app.h
index 92f1ca1b9..be767aedb 100644
--- a/escher/include/escher/app.h
+++ b/escher/include/escher/app.h
@@ -35,6 +35,9 @@ public:
     /* reset all instances to their initial values */
     virtual void reset();
     virtual Descriptor * descriptor() = 0;
+#if EPSILON_GETOPT
+    virtual void setOpt(const char * name, char * value) {}
+#endif
   private:
     /* tidy clean all dynamically-allocated data */
     virtual void tidy();
diff --git a/ion/src/emscripten/main.cpp b/ion/src/emscripten/main.cpp
index 0fd4066f4..6fa273e27 100644
--- a/ion/src/emscripten/main.cpp
+++ b/ion/src/emscripten/main.cpp
@@ -7,16 +7,6 @@ int main(int argc, char * argv[]) {
   Ion::Display::Emscripten::init();
   Ion::Events::Emscripten::init();
 
-  if (argc == 2) {
-    const char * languageIdentifiers[] = {"none", "en", "fr", "es", "de", "pt"};
-    const char * requestedLanguageId = argv[1];
-    for (int i=0; i<sizeof(languageIdentifiers)/sizeof(languageIdentifiers[0]); i++) {
-      if (strcmp(requestedLanguageId, languageIdentifiers[i]) == 0) {
-        GlobalPreferences::sharedGlobalPreferences()->setLanguage((I18n::Language)i);
-        break;
-      }
-    }
-  }
   ion_main(argc, argv);
   return 0;
 }