- Abstractions (class, prototype, function, functor, module, pattern, on other complex abstraction) for:
- Data structures: specific lists, trees, or graphs with methods for traversal and iteration
- Algorithms: implementation of known math or physics calculations, data manipulations, etc.
- Access to I/O devices, operation system, other applications, timers and different sensors
- Syntax sugar for any programming language to express domain processes in expressive and simple way
- DSL (Domain specific language) runtime, interpreter, compiler, linter, style fixers and tools
- Games: web, console, mobile of any kind but with good patterns, project structure and code style
- Parsing tools for any formal or informal language
- Crawler and search engines
- Examples, tests and documentation for lectures, frameworks, and libraries
- Fixes, contribution, features, and bug-reproduction reports for open-source projects
- System programming
- Data access abstractions, repository implementation, query builder for persistent queue, column or relational db
- Network protocols for message passing, rpc, api, rest or stateful,
- Reactive abstractions
- Asynchronous programming abstractions
- Parallel programming abstractions
- Applied applications, their subsystems, or separate modules
- CRM, ERP, SCM, Warehouse systems,
- Medical information systems
- Production automation and management information systems
- Any other custom-made information systems
- Your own project