General

Test your contributions to assure they do not break existing functionality.
Commits to the repo should be done by portions; that is, by individual functionalities of the program.
Don't use any disrespectful language.

Code

Make sure the code can compile for all target systems - Windows, Linux, and macOS/Mac OS X.
All code must be compatible with at least C++11.
Minimize the amount of redundant code.
Avoid using absolute paths for the headers.
Code should maintain vertical alignment for better readability, for example:

one_hundred  =  100;
one_thousand = 1000;
two_thousand = 2000;

CamelCase for class names, lowercase for variables, UPPERCASE for enumerations
Avoid redundancy in namespaces (i.e. use ViaCuda::read() instead of ViaCuda::cuda_read())

Issues

When creating an issue ticket, note which version you are using.
If possible, reference the git hashes for the relevant commits.
Once an issue is closed, do not re-open it. Instead, reference it in a new issue ticket.