Advanced
- 
	Custom payloads
Success-or-failure return types where extra information in addition to the error code accompanies failure. 
- 
	Result returning constructors
How to metaprogram construction of objects which use result to return failure instead of throwing a C++ exception. 
- 
	Hooking events
Intercepting useful events such as initial construction, copies and moves so you can capture backtraces, fire debug breakpoints etc. 
- 
	Interoperation
Interoperating with std::expected and other ValueOrError concept matching types. - Incommensurate E types
- ValueOrError Concept
- The HTTP library
- The HTMLTidy library
- The File I/O library
- The Application
- 
	Mapping the HTTP library into the Application 1/2
- 
	Mapping the HTTP library into the Application 2/2
- Mapping the File I/O library into the Application
- Mapping the HTMLTidy library into the Application
- In use
- Conclusion
 



