Thanks for your interest in contributing to OpenSkyStacker! Here are a few things to keep in mind before you open a pull request.
This project adheres to Qt coding style, so before you open a pull request, make sure that the variable names, spacing, bracket style, etc. is consistent with Qt standards and with the rest of the code in this project.
OpenSkyStacker has a test suite that will verify that the basic features are working properly. It will build alongside the rest of the project. First, grab the image samples from here. Then you can run the test suite by running:
bin/oss-test -d <path-to-samples-dir>
If any tests fail, try to investigate the cause and fix it before submitting a pull request. If the cause can't be determined, open a new issue.
If you've added new functionality, write a test case to accompany it.