What methods and approaches do you know for implementing isolated environments in a system?

The following methods and approaches are used to implement isolated environments in the system:

• Virtualization: creating virtual machines with a separate operating system, fully isolated from the host.

• Containerization: using containers (e.g., Docker), which isolate applications and their dependencies but use the host system's kernel.

• Process-level isolation: running processes with limited permissions and resources (e.g., using cgroups and namespaces in Linux).

• Sandboxing: restricting applications' access to system resources and data.

• In Flutter: you can create isolated environments for testing and development using packages, for example, using different configurations, environments (dev, staging, prod) through flavors and environment variables.

Example of using flavor in Flutter:

// In main_dev.dart
void main() {
  runApp(MyApp(environment: 'development'));
}

// In main_prod.dart
void main() {
  runApp(MyApp(environment: 'production'));
}

Thus, you can run the application with different settings, simulating isolated environments.