For external contributions we always prefer to use Gitlab: https://gitlab.com
All our sources are here: https://gitlab.com/argent
Our sources are divided into multiple git repositories.
The most important sources are these:
https://gitlab.com/argent/argent-ws - This is our main Argent Linux overlay, where we store applications specific to Argent Linux. This is where we store our Gentoo Ebuilds.
https://gitlab.com/argent/portage - This is our exact clone of Gentoo main overlay.
https://gitlab.com/argent/argentws-build - This is our Gentoo Argent configuration, this is the one that decides what happens into your /etc/portage/, such as /etc/portage/make.conf. It's a centralized configuration system, and it decides how your packages look like on your system.
https://gitlab.com/argent/argent-theme - This is our 7 year old KDE theme, which still works. Thanks Ionel Busuioc for this one.
https://gitlab.com/argent/avasile, https://gitlab.com/argent/boot-core, https://gitlab.com/argent/argentws-live - These are our git repositories specific to our ISOs creation, the way our ISOs behave, or look; as well as a part system management.
In order to contribute, you might have guessed what we're about to recommend:
1. Create a Gitlab account
2. Fork the repository you want to contribute to
3. Create a new branch for your changes
4. Make your changes
5. Create a Merge Request (MR) to our repositories
6. Wait for us to review your changes and merge them
7. Celebrate your contribution to Argent Linux!
This is it. This is the most practical way of helping us. We don't need money. We need contributions. This is how you contribute.