HackStudio: Project templates and New Project dialog

This commit adds a simple project template system to HackStudio,
as well as a pretty New Project dialog, inspired by early VS.NET
and MS Office.

24 files changed, 1178 insertions, 1 deletions

diff --git a/Base/res/devel/templates/cpp-basic.ini b/Base/res/devel/templates/cpp-basic.ini
new file mode 100644
index 0000000000..da86eb8f05
--- /dev/null
+++ b/Base/res/devel/templates/cpp-basic.ini
@@ -0,0 +1,5 @@
+[HackStudioTemplate]
+Name=Command-line Application (C++)
+Description=Template for creating a basic C++ command-line application.
+Priority=95
+IconName32x=cpp-basic
diff --git a/Base/res/devel/templates/cpp-basic.postcreate b/Base/res/devel/templates/cpp-basic.postcreate
new file mode 100644
index 0000000000..497471f452
--- /dev/null
+++ b/Base/res/devel/templates/cpp-basic.postcreate
@@ -0,0 +1,19 @@
+#!/bin/sh
+
+echo "PROGRAM = $1" >> $2/Makefile
+echo "OBJS = main.o" >> $2/Makefile
+echo "CXXFLAGS = -g -std=c++2a" >> $2/Makefile
+echo "" >> $2/Makefile
+echo "all: \$(PROGRAM)" >> $2/Makefile
+echo "" >> $2/Makefile
+echo "\$(PROGRAM): \$(OBJS)" >> $2/Makefile
+echo "	\$(CXX) -o \$@ \$(OBJS)" >> $2/Makefile
+echo "" >> $2/Makefile
+echo "%.o: %.cpp" >> $2/Makefile
+echo "	\$(CXX) \$(CXXFLAGS) -o \$@ -c \$< " >> $2/Makefile
+echo "" >> $2/Makefile
+echo "clean:" >> $2/Makefile
+echo "	rm \$(OBJS) \$(PROGRAM)" >> $2/Makefile
+echo "" >> $2/Makefile
+echo "run:" >> $2/Makefile
+echo "	./\$(PROGRAM)" >> $2/Makefile
diff --git a/Base/res/devel/templates/cpp-basic/main.cpp b/Base/res/devel/templates/cpp-basic/main.cpp
new file mode 100644
index 0000000000..c6644f3a60
--- /dev/null
+++ b/Base/res/devel/templates/cpp-basic/main.cpp
@@ -0,0 +1,7 @@
+#include <stdio.h>
+
+int main(int argc, char** argv)
+{
+    printf("Hello friends!\n");
+    return 0;
+}
diff --git a/Base/res/devel/templates/cpp-gui.ini b/Base/res/devel/templates/cpp-gui.ini
new file mode 100644
index 0000000000..4af451fff0
--- /dev/null
+++ b/Base/res/devel/templates/cpp-gui.ini
@@ -0,0 +1,5 @@
+[HackStudioTemplate]
+Name=Graphical Application (C++)
+Description=Template for creating a basic C++ graphical application.
+Priority=90
+IconName32x=cpp-gui
diff --git a/Base/res/devel/templates/cpp-gui.postcreate b/Base/res/devel/templates/cpp-gui.postcreate
new file mode 100644
index 0000000000..822de7f1f7
--- /dev/null
+++ b/Base/res/devel/templates/cpp-gui.postcreate
@@ -0,0 +1,19 @@
+#!/bin/sh
+
+echo "PROGRAM = $1" >> $2/Makefile
+echo "OBJS = main.o" >> $2/Makefile
+echo "CXXFLAGS = -lgui -g -std=c++2a" >> $2/Makefile
+echo "" >> $2/Makefile
+echo "all: \$(PROGRAM)" >> $2/Makefile
+echo "" >> $2/Makefile
+echo "\$(PROGRAM): \$(OBJS)" >> $2/Makefile
+echo "	\$(CXX) \$(CXXFLAGS) -o \$@ \$(OBJS)" >> $2/Makefile
+echo "" >> $2/Makefile
+echo "%.o: %.cpp" >> $2/Makefile
+echo "	\$(CXX) \$(CXXFLAGS) -o \$@ -c \$< " >> $2/Makefile
+echo "" >> $2/Makefile
+echo "clean:" >> $2/Makefile
+echo "	rm \$(OBJS) \$(PROGRAM)" >> $2/Makefile
+echo "" >> $2/Makefile
+echo "run:" >> $2/Makefile
+echo "	./\$(PROGRAM)" >> $2/Makefile
diff --git a/Base/res/devel/templates/cpp-gui/main.cpp b/Base/res/devel/templates/cpp-gui/main.cpp
new file mode 100644
index 0000000000..35629bc8d3
--- /dev/null
+++ b/Base/res/devel/templates/cpp-gui/main.cpp
@@ -0,0 +1,26 @@
+#include <stdio.h>
+#include <LibGUI/Application.h>
+#include <LibGUI/Window.h>
+#include <LibGUI/Button.h>
+#include <LibGUI/MessageBox.h>
+
+int main(int argc, char** argv)
+{
+    auto app = GUI::Application::construct(argc, argv);
+
+    auto window = GUI::Window::construct();
+    window->set_title("Hello friends!");
+    window->resize(200, 100);
+
+    auto button = GUI::Button::construct();
+    button->set_text("Click me!");
+    button->on_click = [&](auto) {
+        GUI::MessageBox::show(window, "Hello friends!", ":^)");
+    };
+
+    window->set_main_widget(button);
+
+    window->show();
+
+    return app->exec();
+}
diff --git a/Base/res/devel/templates/cpp-library.ini b/Base/res/devel/templates/cpp-library.ini
new file mode 100644
index 0000000000..fd657bb6d7
--- /dev/null
+++ b/Base/res/devel/templates/cpp-library.ini
@@ -0,0 +1,4 @@
+[HackStudioTemplate]
+Name=Shared Library (C++)
+Description=Template for creating a C++ shared library.
+IconName32x=cpp-library
diff --git a/Base/res/devel/templates/cpp-library.postcreate b/Base/res/devel/templates/cpp-library.postcreate
new file mode 100644
index 0000000000..3f4a254ebb
--- /dev/null
+++ b/Base/res/devel/templates/cpp-library.postcreate
@@ -0,0 +1,49 @@
+#!/bin/sh
+
+# $1: Project name, filesystem safe
+# $2: Project full path
+# $3: Project name, namespace safe
+
+# Generate Makefile
+echo "LIBRARY = $1.so" >> $2/Makefile
+echo "OBJS = Class1.o" >> $2/Makefile
+echo "CXXFLAGS = -g -std=c++2a" >> $2/Makefile
+echo "" >> $2/Makefile
+echo "all: \$(LIBRARY)" >> $2/Makefile
+echo "" >> $2/Makefile
+echo "\$(LIBRARY): \$(OBJS)" >> $2/Makefile
+echo "	\$(CXX) -shared -o \$@ \$(OBJS)" >> $2/Makefile
+echo "" >> $2/Makefile
+echo "%.o: %.cpp" >> $2/Makefile
+echo "	\$(CXX) \$(CXXFLAGS) -fPIC -o \$@ -c \$< " >> $2/Makefile
+echo "" >> $2/Makefile
+echo "clean:" >> $2/Makefile
+echo "	rm \$(OBJS) \$(LIBRARY)" >> $2/Makefile
+echo "" >> $2/Makefile
+
+# Generate 'Class1' header file
+echo "#pragma once" >> $2/Class1.h
+echo "" >> $2/Class1.h
+echo "namespace $3 {" >> $2/Class1.h
+echo "" >> $2/Class1.h
+echo "class Class1 {" >> $2/Class1.h
+echo "public:" >> $2/Class1.h
+echo "    void hello();" >> $2/Class1.h
+echo "};" >> $2/Class1.h
+echo "" >> $2/Class1.h
+echo "}" >> $2/Class1.h
+echo "" >> $2/Class1.h
+
+# Generate 'Class1' source file
+echo "#include \"Class1.h\"" >> $2/Class1.cpp
+echo "#include <stdio.h>" >> $2/Class1.cpp
+echo "" >> $2/Class1.cpp
+echo "namespace $3 {" >> $2/Class1.cpp
+echo "" >> $2/Class1.cpp
+echo "void Class1::hello()" >> $2/Class1.cpp
+echo "{" >> $2/Class1.cpp
+echo "    printf(\"Hello friends! :^)\\n\");" >> $2/Class1.cpp
+echo "}" >> $2/Class1.cpp
+echo "" >> $2/Class1.cpp
+echo "}" >> $2/Class1.cpp
+echo "" >> $2/Class1.cpp
diff --git a/Base/res/devel/templates/empty.ini b/Base/res/devel/templates/empty.ini
new file mode 100644
index 0000000000..4c32529c0b
--- /dev/null
+++ b/Base/res/devel/templates/empty.ini
@@ -0,0 +1,5 @@
+[HackStudioTemplate]
+Name=Empty Project
+Description=Template for creating an empty project with no files.
+Priority=100
+IconName32x=empty
diff --git a/Base/res/icons/hackstudio/templates-32x32/cpp-basic.png b/Base/res/icons/hackstudio/templates-32x32/cpp-basic.png
new file mode 100644
index 0000000000..96995229f2
--- /dev/null
+++ b/Base/res/icons/hackstudio/templates-32x32/cpp-basic.png
diff --git a/Base/res/icons/hackstudio/templates-32x32/cpp-gui.png b/Base/res/icons/hackstudio/templates-32x32/cpp-gui.png
new file mode 100644
index 0000000000..bdbb0a0130
--- /dev/null
+++ b/Base/res/icons/hackstudio/templates-32x32/cpp-gui.png
diff --git a/Base/res/icons/hackstudio/templates-32x32/cpp-library.png b/Base/res/icons/hackstudio/templates-32x32/cpp-library.png
new file mode 100644
index 0000000000..e00ce34f16
--- /dev/null
+++ b/Base/res/icons/hackstudio/templates-32x32/cpp-library.png
diff --git a/Base/res/icons/hackstudio/templates-32x32/empty.png b/Base/res/icons/hackstudio/templates-32x32/empty.png
new file mode 100644
index 0000000000..1ca82691cb
--- /dev/null
+++ b/Base/res/icons/hackstudio/templates-32x32/empty.png
diff --git a/Meta/build-root-filesystem.sh b/Meta/build-root-filesystem.sh
index 339de30812..fc3280cce4 100755
--- a/Meta/build-root-filesystem.sh
+++ b/Meta/build-root-filesystem.sh
@@ -62,6 +62,7 @@ chmod 4750 mnt/bin/keymap
 chown 0:$utmp_gid mnt/bin/utmpupdate
 chmod 2755 mnt/bin/utmpupdate
 chmod 600 mnt/etc/shadow
+chmod 755 mnt/res/devel/templates/*.postcreate
 echo "done"
 
 printf "creating initial filesystem structure... "
diff --git a/Userland/DevTools/HackStudio/CMakeLists.txt b/Userland/DevTools/HackStudio/CMakeLists.txt
index e31a214a62..7f4a87858b 100644
--- a/Userland/DevTools/HackStudio/CMakeLists.txt
+++ b/Userland/DevTools/HackStudio/CMakeLists.txt
@@ -1,6 +1,8 @@
 add_subdirectory(LanguageServers)
 add_subdirectory(LanguageClients)
 
+compile_gml(Dialogs/NewProjectDialog.gml Dialogs/NewProjectDialogGML.h new_project_dialog_gml)
+
 set(SOURCES
     CodeDocument.cpp
     CursorTool.cpp
@@ -11,6 +13,9 @@ set(SOURCES
     Debugger/DisassemblyWidget.cpp
     Debugger/RegistersModel.cpp
     Debugger/VariablesModel.cpp
+    Dialogs/NewProjectDialog.cpp
+    Dialogs/NewProjectDialogGML.h
+    Dialogs/ProjectTemplatesModel.cpp
     Editor.cpp
     EditorWrapper.cpp
     FindInFilesWidget.cpp
@@ -26,6 +31,7 @@ set(SOURCES
     Locator.cpp
     Project.cpp
     ProjectFile.cpp
+    ProjectTemplate.cpp
     TerminalWrapper.cpp
     WidgetTool.cpp
     WidgetTreeModel.cpp
@@ -33,5 +39,5 @@ set(SOURCES
 )
 
 serenity_app(HackStudio ICON app-hack-studio)
-target_link_libraries(HackStudio LibWeb LibMarkdown LibGUI LibCpp LibGfx LibCore LibVT LibDebug LibX86 LibDiff LibShell)
+target_link_libraries(HackStudio LibWeb LibMarkdown LibGUI LibCpp LibGfx LibCore LibVT LibDebug LibX86 LibDiff LibShell LibRegex)
 add_dependencies(HackStudio CppLanguageServer)
diff --git a/Userland/DevTools/HackStudio/Dialogs/NewProjectDialog.cpp b/Userland/DevTools/HackStudio/Dialogs/NewProjectDialog.cpp
new file mode 100644
index 0000000000..692804def0
--- /dev/null
+++ b/Userland/DevTools/HackStudio/Dialogs/NewProjectDialog.cpp
@@ -0,0 +1,244 @@
+/*
+ * Copyright (c) 2021, Nick Vella <nick@nxk.io>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "NewProjectDialog.h"
+#include "ProjectTemplatesModel.h"
+#include <DevTools/HackStudio/Dialogs/NewProjectDialogGML.h>
+#include <DevTools/HackStudio/ProjectTemplate.h>
+
+#include <AK/LexicalPath.h>
+#include <AK/String.h>
+#include <LibCore/File.h>
+#include <LibGUI/BoxLayout.h>
+#include <LibGUI/Button.h>
+#include <LibGUI/FilePicker.h>
+#include <LibGUI/IconView.h>
+#include <LibGUI/Label.h>
+#include <LibGUI/MessageBox.h>
+#include <LibGUI/RadioButton.h>
+#include <LibGUI/TextBox.h>
+#include <LibGUI/Widget.h>
+#include <LibGfx/Font.h>
+#include <LibGfx/FontDatabase.h>
+#include <LibRegex/Regex.h>
+
+namespace HackStudio {
+
+static const Regex<PosixExtended> s_project_name_validity_regex("^([A-Za-z0-9_-])*$");
+
+int NewProjectDialog::show(GUI::Window* parent_window)
+{
+    auto dialog = NewProjectDialog::construct(parent_window);
+
+    if (parent_window)
+        dialog->set_icon(parent_window->icon());
+
+    auto result = dialog->exec();
+
+    return result;
+}
+
+NewProjectDialog::NewProjectDialog(GUI::Window* parent)
+    : Dialog(parent)
+    , m_model(ProjectTemplatesModel::create())
+{
+    resize(500, 385);
+    center_on_screen();
+    set_resizable(false);
+    set_modal(true);
+    set_title("New project");
+
+    auto& main_widget = set_main_widget<GUI::Widget>();
+    main_widget.load_from_gml(new_project_dialog_gml);
+
+    m_icon_view_container = *main_widget.find_descendant_of_type_named<GUI::Widget>("icon_view_container");
+    m_icon_view = m_icon_view_container->add<GUI::IconView>();
+    m_icon_view->set_always_wrap_item_labels(true);
+    m_icon_view->set_model(m_model);
+    m_icon_view->set_model_column(ProjectTemplatesModel::Column::Name);
+    m_icon_view->on_selection_change = [&]() {
+        update_dialog();
+    };
+    m_icon_view->on_activation = [&]() {
+        if (m_input_valid)
+            do_create_project();
+    };
+
+    m_description_label = *main_widget.find_descendant_of_type_named<GUI::Label>("description_label");
+    m_name_input = *main_widget.find_descendant_of_type_named<GUI::TextBox>("name_input");
+    m_name_input->on_change = [&]() {
+        update_dialog();
+    };
+    m_name_input->on_return_pressed = [&]() {
+        if (m_input_valid)
+            do_create_project();
+    };
+    m_create_in_input = *main_widget.find_descendant_of_type_named<GUI::TextBox>("create_in_input");
+    m_create_in_input->on_change = [&]() {
+        update_dialog();
+    };
+    m_create_in_input->on_return_pressed = [&]() {
+        if (m_input_valid)
+            do_create_project();
+    };
+    m_full_path_label = *main_widget.find_descendant_of_type_named<GUI::Label>("full_path_label");
+
+    m_ok_button = *main_widget.find_descendant_of_type_named<GUI::Button>("ok_button");
+    m_ok_button->on_click = [this](auto) {
+        do_create_project();
+    };
+
+    m_cancel_button = *main_widget.find_descendant_of_type_named<GUI::Button>("cancel_button");
+    m_cancel_button->on_click = [this](auto) {
+        done(ExecResult::ExecCancel);
+    };
+
+    m_browse_button = *find_descendant_of_type_named<GUI::Button>("browse_button");
+    m_browse_button->on_click = [this](auto) {
+        Optional<String> path = GUI::FilePicker::get_open_filepath(this);
+        if (path.has_value())
+            m_create_in_input->set_text(path.value().view());
+    };
+}
+
+NewProjectDialog::~NewProjectDialog()
+{
+}
+
+RefPtr<ProjectTemplate> NewProjectDialog::selected_template()
+{
+    if (m_icon_view->selection().is_empty()) {
+        return {};
+    }
+
+    auto project_template = m_model->template_for_index(m_icon_view->selection().first());
+    ASSERT(!project_template.is_null());
+
+    return project_template;
+}
+
+void NewProjectDialog::update_dialog()
+{
+    auto project_template = selected_template();
+    m_input_valid = true;
+
+    if (project_template) {
+        m_description_label->set_text(project_template->description());
+    } else {
+        m_description_label->set_text("Select a project template to continue.");
+        m_input_valid = false;
+    }
+
+    auto maybe_project_path = get_project_full_path();
+
+    if (maybe_project_path.has_value()) {
+        m_full_path_label->set_text(maybe_project_path.value());
+    } else {
+        m_full_path_label->set_text("Invalid name or creation directory.");
+        m_input_valid = false;
+    }
+
+    m_ok_button->set_enabled(m_input_valid);
+}
+
+Optional<String> NewProjectDialog::get_available_project_name()
+{
+    auto create_in = m_create_in_input->text();
+    auto chosen_name = m_name_input->text();
+
+    // Ensure project name isn't empty or entirely whitespace
+    if (chosen_name.is_empty() || chosen_name.is_whitespace())
+        return {};
+
+    // Validate project name with validity regex
+    if (!s_project_name_validity_regex.has_match(chosen_name))
+        return {};
+
+    if (!Core::File::exists(create_in) || !Core::File::is_directory(create_in))
+        return {};
+
+    // Check for up-to 999 variations of the project name, in case it's already taken
+    for (int i = 0; i < 1000; i++) {
+        auto candidate = (i == 0)
+            ? chosen_name
+            : String::formatted("{}-{}", chosen_name, i);
+
+        if (!Core::File::exists(String::formatted("{}/{}", create_in, candidate)))
+            return candidate;
+    }
+
+    return {};
+}
+
+Optional<String> NewProjectDialog::get_project_full_path()
+{
+    // Do not permit forward-slashes in project names
+    if (m_name_input->text().contains("/"))
+        return {};
+
+    auto create_in = m_create_in_input->text();
+    auto maybe_project_name = get_available_project_name();
+
+    if (!maybe_project_name.has_value()) {
+        return {};
+    }
+
+    auto project_name = maybe_project_name.value();
+    auto full_path = LexicalPath(String::formatted("{}/{}", create_in, project_name));
+
+    // Do not permit otherwise invalid paths.
+    if (!full_path.is_valid())
+        return {};
+
+    return full_path.string();
+}
+
+void NewProjectDialog::do_create_project()
+{
+    auto project_template = selected_template();
+    if (!project_template) {
+        GUI::MessageBox::show_error(this, "Could not create project: no template selected.");
+        return;
+    }
+
+    auto maybe_project_name = get_available_project_name();
+    auto maybe_project_full_path = get_project_full_path();
+    if (!maybe_project_name.has_value() || !maybe_project_full_path.has_value()) {
+        GUI::MessageBox::show_error(this, "Could not create project: invalid project name or path.");
+        return;
+    }
+
+    auto creation_result = project_template->create_project(maybe_project_name.value(), maybe_project_full_path.value());
+    if (!creation_result.is_error()) {
+        // Succesfully created, attempt to open the new project
+        m_created_project_path = maybe_project_full_path.value();
+        done(ExecResult::ExecOK);
+    } else {
+        GUI::MessageBox::show_error(this, String::formatted("Could not create project: {}", creation_result.error()));
+    }
+}
+
+}
diff --git a/Userland/DevTools/HackStudio/Dialogs/NewProjectDialog.gml b/Userland/DevTools/HackStudio/Dialogs/NewProjectDialog.gml
new file mode 100644
index 0000000000..31e461ef72
--- /dev/null
+++ b/Userland/DevTools/HackStudio/Dialogs/NewProjectDialog.gml
@@ -0,0 +1,115 @@
+@GUI::Widget {
+    fill_with_background_color: true
+
+    layout: @GUI::VerticalBoxLayout {
+        margins: [4, 4, 4, 4]
+    }
+
+    @GUI::Label {
+        text: "Templates:"
+        text_alignment: "CenterLeft"
+        max_height: 20
+    }
+
+    @GUI::Widget {
+        layout: @GUI::VerticalBoxLayout {
+        }
+
+        name: "icon_view_container"
+    }
+
+    @GUI::Label {
+        name: "description_label"
+        text_alignment: "CenterLeft"
+        thickness: 2
+        shadow: "Sunken"
+        shape: "Container"
+        max_height: 24
+    }
+
+    @GUI::Widget {
+        layout: @GUI::HorizontalBoxLayout {
+        }
+        
+        max_height: 24
+
+        @GUI::Label {
+            text: "Name:"
+            text_alignment: "CenterLeft"
+            max_width: 75
+        }
+
+        @GUI::TextBox {
+            name: "name_input"
+        }
+    }
+    
+    @GUI::Widget {
+        layout: @GUI::HorizontalBoxLayout {
+        }
+        
+        max_height: 24
+
+        @GUI::Label {
+            text: "Create in:"
+            text_alignment: "CenterLeft"
+            max_width: 75
+        }
+
+        @GUI::TextBox {
+            name: "create_in_input"
+            text: "/home/anon/Source"
+        }
+        
+        @GUI::Button {
+            name: "browse_button"
+            text: "Browse"
+            max_width: 75
+        }
+    }
+
+    @GUI::Widget {
+        layout: @GUI::HorizontalBoxLayout {
+        }
+        
+        max_height: 24
+
+        @GUI::Label {
+            text: "Full path:"
+            text_alignment: "CenterLeft"
+            max_width: 75
+        }
+
+        @GUI::Label {
+            name: "full_path_label"
+            text_alignment: "CenterLeft"
+            text: ""
+            thickness: 2
+            shadow: "Sunken"
+            shape: "Container"
+            max_height: 22
+        }
+    }
+    
+    @GUI::Widget {
+        layout: @GUI::HorizontalBoxLayout {
+        }
+        
+        max_height: 24
+
+        @GUI::Widget {
+        }
+        
+        @GUI::Button {
+            name: "ok_button"
+            text: "OK"
+            max_width: 75
+        }
+        
+        @GUI::Button {
+            name: "cancel_button"
+            text: "Cancel"
+            max_width: 75
+        }
+    }
+}
diff --git a/Userland/DevTools/HackStudio/Dialogs/NewProjectDialog.h b/Userland/DevTools/HackStudio/Dialogs/NewProjectDialog.h
new file mode 100644
index 0000000000..22c3827ac5
--- /dev/null
+++ b/Userland/DevTools/HackStudio/Dialogs/NewProjectDialog.h
@@ -0,0 +1,79 @@
+/*
+ * Copyright (c) 2021, Nick Vella <nick@nxk.io>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#pragma once
+
+#include "ProjectTemplatesModel.h"
+#include <DevTools/HackStudio/ProjectTemplate.h>
+
+#include <AK/Result.h>
+#include <AK/Vector.h>
+#include <LibGUI/Button.h>
+#include <LibGUI/Dialog.h>
+#include <LibGUI/Label.h>
+#include <LibGUI/TextBox.h>
+
+namespace HackStudio {
+
+class NewProjectDialog : public GUI::Dialog {
+    C_OBJECT(NewProjectDialog);
+
+public:
+    static int show(GUI::Window* parent_window);
+
+    Optional<String> created_project_path() const { return m_created_project_path; }
+
+private:
+    NewProjectDialog(GUI::Window* parent);
+    virtual ~NewProjectDialog() override;
+
+    void update_dialog();
+    Optional<String> get_available_project_name();
+    Optional<String> get_project_full_path();
+
+    void do_create_project();
+
+    RefPtr<ProjectTemplate> selected_template();
+
+    NonnullRefPtr<ProjectTemplatesModel> m_model;
+    bool m_input_valid { false };
+
+    RefPtr<GUI::Widget> m_icon_view_container;
+    RefPtr<GUI::IconView> m_icon_view;
+
+    RefPtr<GUI::Label> m_description_label;
+    RefPtr<GUI::TextBox> m_name_input;
+    RefPtr<GUI::TextBox> m_create_in_input;
+    RefPtr<GUI::Label> m_full_path_label;
+
+    RefPtr<GUI::Button> m_ok_button;
+    RefPtr<GUI::Button> m_cancel_button;
+    RefPtr<GUI::Button> m_browse_button;
+
+    Optional<String> m_created_project_path;
+};
+
+}
diff --git a/Userland/DevTools/HackStudio/Dialogs/ProjectTemplatesModel.cpp b/Userland/DevTools/HackStudio/Dialogs/ProjectTemplatesModel.cpp
new file mode 100644
index 0000000000..a2dd21e0b1
--- /dev/null
+++ b/Userland/DevTools/HackStudio/Dialogs/ProjectTemplatesModel.cpp
@@ -0,0 +1,156 @@
+/*
+ * Copyright (c) 2021, Nick Vella <nick@nxk.io>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "ProjectTemplatesModel.h"
+
+#include <AK/LexicalPath.h>
+#include <AK/QuickSort.h>
+#include <LibCore/DirIterator.h>
+#include <LibGUI/Icon.h>
+#include <LibGUI/Variant.h>
+#include <LibGfx/TextAlignment.h>
+#include <ctype.h>
+#include <stdio.h>
+
+namespace HackStudio {
+
+ProjectTemplatesModel::ProjectTemplatesModel()
+    : m_templates()
+    , m_mapping()
+{
+    auto watcher_or_error = Core::FileWatcher::watch(ProjectTemplate::templates_path());
+    if (!watcher_or_error.is_error()) {
+        m_file_watcher = watcher_or_error.release_value();
+        m_file_watcher->on_change = [&](auto) {
+            update();
+        };
+    } else {
+        warnln("Unable to watch templates directory, templates will not automatically refresh. Error: {}", watcher_or_error.error());
+    }
+
+    rescan_templates();
+}
+
+ProjectTemplatesModel::~ProjectTemplatesModel()
+{
+}
+
+int ProjectTemplatesModel::row_count(const GUI::ModelIndex&) const
+{
+    return m_mapping.size();
+}
+
+int ProjectTemplatesModel::column_count(const GUI::ModelIndex&) const
+{
+    return Column::__Count;
+}
+
+String ProjectTemplatesModel::column_name(int column) const
+{
+    switch (column) {
+    case Column::Icon:
+        return "Icon";
+    case Column::Id:
+        return "ID";
+    case Column::Name:
+        return "Name";
+    }
+    ASSERT_NOT_REACHED();
+}
+
+GUI::Variant ProjectTemplatesModel::data(const GUI::ModelIndex& index, GUI::ModelRole role) const
+{
+    if (static_cast<size_t>(index.row()) >= m_mapping.size())
+        return {};
+
+    if (role == GUI::ModelRole::TextAlignment)
+        return Gfx::TextAlignment::CenterLeft;
+
+    if (role == GUI::ModelRole::Display) {
+        switch (index.column()) {
+        case Column::Name:
+            return m_mapping[index.row()]->name();
+        case Column::Id:
+            return m_mapping[index.row()]->id();
+        }
+    }
+
+    if (role == GUI::ModelRole::Icon) {
+        return m_mapping[index.row()]->icon();
+    }
+
+    return {};
+}
+
+RefPtr<ProjectTemplate> ProjectTemplatesModel::template_for_index(const GUI::ModelIndex& index)
+{
+    if (static_cast<size_t>(index.row()) >= m_mapping.size())
+        return {};
+
+    return m_mapping[index.row()];
+}
+
+void ProjectTemplatesModel::update()
+{
+    rescan_templates();
+    did_update();
+}
+
+void ProjectTemplatesModel::rescan_templates()
+{
+    m_templates.clear();
+
+    // Iterate over template manifest INI files in the templates path
+    Core::DirIterator di(ProjectTemplate::templates_path(), Core::DirIterator::SkipDots);
+    if (di.has_error()) {
+        warnln("DirIterator: {}", di.error_string());
+        return;
+    }
+
+    while (di.has_next()) {
+        auto full_path = LexicalPath(di.next_full_path());
+        if (!full_path.has_extension(".ini"))
+            continue;
+
+        auto project_template = ProjectTemplate::load_from_manifest(full_path.string());
+        if (!project_template) {
+            warnln("Template manifest {} is invalid.", full_path.string());
+            continue;
+        }
+
+        m_templates.append(project_template.release_nonnull());
+    }
+
+    // Enumerate the loaded projects into a sorted mapping, by priority value descending.
+    m_mapping.clear();
+    for (auto& project_template : m_templates)
+        m_mapping.append(&project_template);
+    quick_sort(m_mapping, [](auto a, auto b) {
+        return a->priority() > b->priority();
+    });
+}
+
+}
diff --git a/Userland/DevTools/HackStudio/Dialogs/ProjectTemplatesModel.h b/Userland/DevTools/HackStudio/Dialogs/ProjectTemplatesModel.h
new file mode 100644
index 0000000000..a53714366c
--- /dev/null
+++ b/Userland/DevTools/HackStudio/Dialogs/ProjectTemplatesModel.h
@@ -0,0 +1,73 @@
+/*
+ * Copyright (c) 2021, Nick Vella <nick@nxk.io>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#pragma once
+
+#include <AK/NonnullPtrVector.h>
+#include <AK/RefPtr.h>
+#include <AK/WeakPtr.h>
+#include <DevTools/HackStudio/ProjectTemplate.h>
+#include <LibCore/FileWatcher.h>
+#include <LibGUI/Model.h>
+
+namespace HackStudio {
+
+class ProjectTemplatesModel final : public GUI::Model {
+public:
+    static NonnullRefPtr<ProjectTemplatesModel> create()
+    {
+        return adopt(*new ProjectTemplatesModel());
+    }
+
+    enum Column {
+        Icon = 0,
+        Id,
+        Name,
+        __Count
+    };
+
+    virtual ~ProjectTemplatesModel() override;
+
+    RefPtr<ProjectTemplate> template_for_index(const GUI::ModelIndex& index);
+
+    virtual int row_count(const GUI::ModelIndex& = GUI::ModelIndex()) const override;
+    virtual int column_count(const GUI::ModelIndex& = GUI::ModelIndex()) const override;
+    virtual String column_name(int) const override;
+    virtual GUI::Variant data(const GUI::ModelIndex&, GUI::ModelRole) const override;
+    virtual void update() override;
+
+    void rescan_templates();
+
+private:
+    explicit ProjectTemplatesModel();
+
+    NonnullRefPtrVector<ProjectTemplate> m_templates;
+    Vector<ProjectTemplate*> m_mapping;
+
+    RefPtr<Core::FileWatcher> m_file_watcher;
+};
+
+}
diff --git a/Userland/DevTools/HackStudio/HackStudioWidget.cpp b/Userland/DevTools/HackStudio/HackStudioWidget.cpp
index 06c62c4510..e492cc3647 100644
--- a/Userland/DevTools/HackStudio/HackStudioWidget.cpp
+++ b/Userland/DevTools/HackStudio/HackStudioWidget.cpp
@@ -31,6 +31,7 @@
 #include "Debugger/DebugInfoWidget.h"
 #include "Debugger/Debugger.h"
 #include "Debugger/DisassemblyWidget.h"
+#include "Dialogs/NewProjectDialog.h"
 #include "Editor.h"
 #include "EditorWrapper.h"
 #include "FindInFilesWidget.h"
@@ -57,6 +58,7 @@
 #include <LibGUI/Application.h>
 #include <LibGUI/BoxLayout.h>
 #include <LibGUI/Button.h>
+#include <LibGUI/Dialog.h>
 #include <LibGUI/EditingEngine.h>
 #include <LibGUI/FilePicker.h>
 #include <LibGUI/InputBox.h>
@@ -130,6 +132,7 @@ HackStudioWidget::HackStudioWidget(const String& path_to_project)
     m_remove_current_editor_action = create_remove_current_editor_action();
     m_open_action = create_open_action();
     m_save_action = create_save_action();
+    m_new_project_action = create_new_project_action();
 
     create_action_tab(*m_right_hand_splitter);
 
@@ -383,6 +386,18 @@ NonnullRefPtr<GUI::Action> HackStudioWidget::create_delete_action()
     return delete_action;
 }
 
+NonnullRefPtr<GUI::Action> HackStudioWidget::create_new_project_action()
+{
+    return GUI::Action::create("Create new project...", { Mod_Ctrl | Mod_Shift, Key_N }, Gfx::Bitmap::load_from_file("/res/icons/16x16/mkdir.png"), [this](const GUI::Action&) {
+        auto dialog = NewProjectDialog::construct(window());
+        dialog->set_icon(window()->icon());
+        auto result = dialog->exec();
+
+        if (result == GUI::Dialog::ExecResult::ExecOK && dialog->created_project_path().has_value())
+            open_project(dialog->created_project_path().value());
+    });
+}
+
 void HackStudioWidget::add_new_editor(GUI::Widget& parent)
 {
     auto wrapper = EditorWrapper::construct();
@@ -849,6 +864,7 @@ void HackStudioWidget::create_action_tab(GUI::Widget& parent)
 void HackStudioWidget::create_app_menubar(GUI::MenuBar& menubar)
 {
     auto& app_menu = menubar.add_menu("Hack Studio");
+    app_menu.add_action(*m_new_project_action);
     app_menu.add_action(*m_open_action);
     app_menu.add_action(*m_save_action);
     app_menu.add_separator();
diff --git a/Userland/DevTools/HackStudio/HackStudioWidget.h b/Userland/DevTools/HackStudio/HackStudioWidget.h
index e5728bfd17..ef43639357 100644
--- a/Userland/DevTools/HackStudio/HackStudioWidget.h
+++ b/Userland/DevTools/HackStudio/HackStudioWidget.h
@@ -84,6 +84,7 @@ private:
     NonnullRefPtr<GUI::Action> create_new_directory_action();
     NonnullRefPtr<GUI::Action> create_open_selected_action();
     NonnullRefPtr<GUI::Action> create_delete_action();
+    NonnullRefPtr<GUI::Action> create_new_project_action();
     NonnullRefPtr<GUI::Action> create_switch_to_next_editor_action();
     NonnullRefPtr<GUI::Action> create_switch_to_previous_editor_action();
     NonnullRefPtr<GUI::Action> create_remove_current_editor_action();
@@ -158,6 +159,7 @@ private:
     RefPtr<GUI::Action> m_new_directory_action;
     RefPtr<GUI::Action> m_open_selected_action;
     RefPtr<GUI::Action> m_delete_action;
+    RefPtr<GUI::Action> m_new_project_action;
     RefPtr<GUI::Action> m_switch_to_next_editor;
     RefPtr<GUI::Action> m_switch_to_previous_editor;
     RefPtr<GUI::Action> m_remove_current_editor_action;
diff --git a/Userland/DevTools/HackStudio/ProjectTemplate.cpp b/Userland/DevTools/HackStudio/ProjectTemplate.cpp
new file mode 100644
index 0000000000..5b2c413980
--- /dev/null
+++ b/Userland/DevTools/HackStudio/ProjectTemplate.cpp
@@ -0,0 +1,279 @@
+/*
+ * Copyright (c) 2021, Nick Vella <nick@nxk.io>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "ProjectTemplate.h"
+#include <AK/LexicalPath.h>
+#include <AK/String.h>
+#include <AK/StringBuilder.h>
+#include <LibCore/ArgsParser.h>
+#include <LibCore/ConfigFile.h>
+#include <LibCore/DirIterator.h>
+#include <LibCore/File.h>
+#include <assert.h>
+#include <fcntl.h>
+#include <spawn.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
+#include <unistd.h>
+
+// FIXME: shameless copy+paste from Userland/cp. We should have system-wide file management functions.
+// Issue #5209
+bool copy_file_or_directory(String, String, bool, bool);
+bool copy_file(String, String, const struct stat&, int);
+bool copy_directory(String, String, bool);
+
+namespace HackStudio {
+
+ProjectTemplate::ProjectTemplate(const String& id, const String& name, const String& description, const GUI::Icon& icon, int priority)
+    : m_id(id)
+    , m_name(name)
+    , m_description(description)
+    , m_icon(icon)
+    , m_priority(priority)
+{
+}
+
+RefPtr<ProjectTemplate> ProjectTemplate::load_from_manifest(const String& manifest_path)
+{
+    auto config = Core::ConfigFile::open(manifest_path);
+
+    if (!config->has_group("HackStudioTemplate")
+        || !config->has_key("HackStudioTemplate", "Name")
+        || !config->has_key("HackStudioTemplate", "Description")
+        || !config->has_key("HackStudioTemplate", "IconName32x"))
+        return {};
+
+    auto id = LexicalPath(manifest_path).title();
+    auto name = config->read_entry("HackStudioTemplate", "Name");
+    auto description = config->read_entry("HackStudioTemplate", "Description");
+    int priority = config->read_num_entry("HackStudioTemplate", "Priority", 0);
+
+    // Attempt to read in the template icons
+    // Fallback to a generic executable icon if one isn't found
+    auto icon = GUI::Icon::default_icon("filetype-executable");
+
+    auto bitmap_path_32 = String::formatted("/res/icons/hackstudio/templates-32x32/{}.png", config->read_entry("HackStudioTemplate", "IconName32x"));
+
+    if (Core::File::exists(bitmap_path_32)) {
+        auto bitmap32 = Gfx::Bitmap::load_from_file(bitmap_path_32);
+        icon = GUI::Icon(move(bitmap32));
+    }
+
+    return adopt(*new ProjectTemplate(id, name, description, icon, priority));
+}
+
+Result<void, String> ProjectTemplate::create_project(const String& name, const String& path)
+{
+    // Check if a file or directory already exists at the project path
+    if (Core::File::exists(path))
+        return String("File or directory already exists at specified location.");
+
+    dbgln("Creating project at path '{}' with name '{}'", path, name);
+
+    // Verify that the template content directory exists. If it does, copy it's contents.
+    // Otherwise, create an empty directory at the project path.
+    if (Core::File::is_directory(content_path())) {
+        if (!copy_directory(content_path(), path, false))
+            return String("Failed to copy template contents.");
+    } else {
+        dbgln("No template content directory found for '{}', creating an empty directory for the project.", m_id);
+        int rc;
+        if ((rc = mkdir(path.characters(), 0755)) < 0) {
+            return String::formatted("Failed to mkdir empty project directory, error: {}, rc: {}.", strerror(errno), rc);
+        }
+    }
+
+    // Check for an executable post-create script in $TEMPLATES_DIR/$ID.postcreate,
+    // and run it with the path and name
+
+    auto postcreate_script_path = LexicalPath::canonicalized_path(String::formatted("{}/{}.postcreate", templates_path(), m_id));
+    struct stat postcreate_st;
+    int result = stat(postcreate_script_path.characters(), &postcreate_st);
+    if (result == 0 && (postcreate_st.st_mode & S_IXOTH) == S_IXOTH) {
+        dbgln("Running post-create script '{}'", postcreate_script_path);
+
+        // Generate a namespace-safe project name (replace hyphens with underscores)
+        String namespace_safe(name.characters());
+        namespace_safe.replace("-", "_", true);
+
+        pid_t child_pid;
+        const char* argv[] = { postcreate_script_path.characters(), name.characters(), path.characters(), namespace_safe.characters(), nullptr };
+
+        if ((errno = posix_spawn(&child_pid, postcreate_script_path.characters(), nullptr, nullptr, const_cast<char**>(argv), environ))) {
+            perror("posix_spawn");
+            return String("Failed to spawn project post-create script.");
+        }
+
+        // Command spawned, wait for exit.
+        int status;
+        if (waitpid(child_pid, &status, 0) < 0)
+            return String("Failed to spawn project post-create script.");
+
+        int child_error = WEXITSTATUS(status);
+        dbgln("Post-create script exited with code {}", child_error);
+
+        if (child_error != 0)
+            return String("Project post-creation script exited with non-zero error code.");
+    }
+
+    return {};
+}
+
+}
+
+// FIXME: shameless copy+paste from Userland/cp. We should have system-wide file management functions.
+// Issue #5209
+bool copy_file_or_directory(String src_path, String dst_path, bool recursion_allowed, bool link)
+{
+    int src_fd = open(src_path.characters(), O_RDONLY);
+    if (src_fd < 0) {
+        perror("open src");
+        return false;
+    }
+
+    struct stat src_stat;
+    int rc = fstat(src_fd, &src_stat);
+    if (rc < 0) {
+        perror("stat src");
+        return false;
+    }
+
+    if (S_ISDIR(src_stat.st_mode)) {
+        if (!recursion_allowed) {
+            fprintf(stderr, "cp: -R not specified; omitting directory '%s'\n", src_path.characters());
+            return false;
+        }
+        return copy_directory(src_path, dst_path, link);
+    }
+    if (link) {
+        if (::link(src_path.characters(), dst_path.characters()) < 0) {
+            perror("link");
+            return false;
+        }
+        return true;
+    }
+
+    return copy_file(src_path, dst_path, src_stat, src_fd);
+}
+
+bool copy_file(String src_path, String dst_path, const struct stat& src_stat, int src_fd)
+{
+    // Get umask
+    auto my_umask = umask(0);
+    umask(my_umask);
+
+    // NOTE: We don't copy the set-uid and set-gid bits.
+    mode_t mode = (src_stat.st_mode & ~my_umask) & ~06000;
+
+    int dst_fd = creat(dst_path.characters(), mode);
+    if (dst_fd < 0) {
+        if (errno != EISDIR) {
+            perror("open dst");
+            return false;
+        }
+        StringBuilder builder;
+        builder.append(dst_path);
+        builder.append('/');
+        builder.append(LexicalPath(src_path).basename());
+        dst_path = builder.to_string();
+        dst_fd = creat(dst_path.characters(), 0666);
+        if (dst_fd < 0) {
+            perror("open dst");
+            return false;
+        }
+    }
+
+    if (src_stat.st_size > 0) {
+        if (ftruncate(dst_fd, src_stat.st_size) < 0) {
+            perror("cp: ftruncate");
+            return false;
+        }
+    }
+
+    for (;;) {
+        char buffer[32768];
+        ssize_t nread = read(src_fd, buffer, sizeof(buffer));
+        if (nread < 0) {
+            perror("read src");
+            return false;
+        }
+        if (nread == 0)
+            break;
+        ssize_t remaining_to_write = nread;
+        char* bufptr = buffer;
+        while (remaining_to_write) {
+            ssize_t nwritten = write(dst_fd, bufptr, remaining_to_write);
+            if (nwritten < 0) {
+                perror("write dst");
+                return false;
+            }
+            assert(nwritten > 0);
+            remaining_to_write -= nwritten;
+            bufptr += nwritten;
+        }
+    }
+
+    close(src_fd);
+    close(dst_fd);
+    return true;
+}
+
+bool copy_directory(String src_path, String dst_path, bool link)
+{
+    int rc = mkdir(dst_path.characters(), 0755);
+    if (rc < 0) {
+        perror("cp: mkdir");
+        return false;
+    }
+
+    String src_rp = Core::File::real_path_for(src_path);
+    src_rp = String::format("%s/", src_rp.characters());
+    String dst_rp = Core::File::real_path_for(dst_path);
+    dst_rp = String::format("%s/", dst_rp.characters());
+
+    if (!dst_rp.is_empty() && dst_rp.starts_with(src_rp)) {
+        fprintf(stderr, "cp: Cannot copy %s into itself (%s)\n",
+            src_path.characters(), dst_path.characters());
+        return false;
+    }
+
+    Core::DirIterator di(src_path, Core::DirIterator::SkipDots);
+    if (di.has_error()) {
+        fprintf(stderr, "cp: DirIterator: %s\n", di.error_string());
+        return false;
+    }
+    while (di.has_next()) {
+        String filename = di.next_path();
+        bool is_copied = copy_file_or_directory(
+            String::format("%s/%s", src_path.characters(), filename.characters()),
+            String::format("%s/%s", dst_path.characters(), filename.characters()),
+            true, link);
+        if (!is_copied) {
+            return false;
+        }
+    }
+    return true;
+}
diff --git a/Userland/DevTools/HackStudio/ProjectTemplate.h b/Userland/DevTools/HackStudio/ProjectTemplate.h
new file mode 100644
index 0000000000..99c1f757b6
--- /dev/null
+++ b/Userland/DevTools/HackStudio/ProjectTemplate.h
@@ -0,0 +1,67 @@
+/*
+ * Copyright (c) 2021, Nick Vella <nick@nxk.io>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#pragma once
+
+#include <AK/ByteBuffer.h>
+#include <AK/LexicalPath.h>
+#include <AK/RefCounted.h>
+#include <AK/Result.h>
+#include <AK/String.h>
+#include <AK/Weakable.h>
+#include <LibGUI/Icon.h>
+
+namespace HackStudio {
+
+class ProjectTemplate : public RefCounted<ProjectTemplate> {
+public:
+    static String templates_path() { return "/res/devel/templates"; }
+
+    static RefPtr<ProjectTemplate> load_from_manifest(const String& manifest_path);
+
+    explicit ProjectTemplate(const String& id, const String& name, const String& description, const GUI::Icon& icon, int priority);
+
+    Result<void, String> create_project(const String& name, const String& path);
+
+    const String& id() const { return m_id; }
+    const String& name() const { return m_name; }
+    const String& description() const { return m_description; }
+    const GUI::Icon& icon() const { return m_icon; }
+    const String content_path() const
+    {
+        return LexicalPath::canonicalized_path(String::formatted("{}/{}", templates_path(), m_id));
+    }
+    int priority() const { return m_priority; }
+
+private:
+    String m_id;
+    String m_name;
+    String m_description;
+    GUI::Icon m_icon;
+    int m_priority { 0 };
+};
+
+}