- Ubuntu Focal 20.04 x64 for native building or any [Docker](https://docs.armbian.com/Developer-Guide_Building-with-Docker/) capable x64 Linux for containerised,
Armbian [releases](https://docs.armbian.com/Release_Changelog/) quarterly at the end of [February, May, August, November](https://github.com/armbian/documentation/blob/master/docs/Process_Release-Model.md). You are welcome to propose changes to our default [images build list](https://github.com/armbian/build/blob/master/config/targets.conf).
- [Build parameters and advanced build options](https://docs.armbian.com/Developer-Guide_Build-Options/),
- [Make use of user defined configurations](https://docs.armbian.com/Developer-Guide_User-Configurations/),
- [Docker](https://docs.armbian.com/Developer-Guide_Building-with-Docker/) and [Vagrant](https://docs.armbian.com/Developer-Guide_Using-Vagrant/) building guides,
- Engage in [Armbian build framework forums](https://forum.armbian.com/forum/4-development/),
Try to recreate it with a clean build tools clone. Then search for [existing and closed issues](https://github.com/armbian/build/issues). If you don't find it there, [open a new issue](https://github.com/armbian/build/issues/new).
Armbian is free software and provides **best effort help** through [community forums](https://forum.armbian.com/). If you can't find answer there and/or with help of [general project search engine](https://www.armbian.com/search) and [documentation](https://docs.armbian.com), consider [hiring an expert](https://www.debian.org/consultants/).
It is limited to active project supporters and sponsors. The shortest way to become one and receive our attention is a four figure [donation to our non-profit project](https://www.armbian.com/donate).
<palign=right><ahref=#table-of-contents>⇧</a></p>
## Contribute
- Adding a new feature?
You are welcome to suggest or contribute directly to the code with a pull request. In case your proposed changes are large, remember to discuss them prior to development.
- Join development?
Join regulars on their active missions, start maintaining any part of the code: patches, drivers or scripted applications like [armbian-config](https://github.com/armbian/config), address [community wishes](https://github.com/armbian/build/issues),
- Help elsewhere?
Maintain and develop [documentation](https://github.com/armbian/documentation), [CI](https://github.com/armbian/ci-testing-tools), [autotests](https://github.com/armbian/autotests), [seed torrents](https://forum.armbian.com/topic/4198-seed-our-torrents/), help on [forum moderating](https://forum.armbian.com/topic/12631-help-on-forum-moderating/), [project administration](https://forum.armbian.com/forum/39-armbian-project-administration/), [costs](https://www.armbian.com/donate).
<palign=right><ahref=#table-of-contents>⇧</a></p>
## Social
- [Participate in Armbian forums](https://forum.armbian.com),
- Chat with fellow users on IRC [#armbian](https://webchat.freenode.net/?channels=armbian) on Freenode,
- Follow [@armbian on Twitter](https://twitter.com/armbian) or [LinkedIN](https://www.linkedin.com/company/armbian).
<palign=right><ahref=#table-of-contents>⇧</a></p>
## Credits
- [Current and past contributors](https://github.com/armbian/build/graphs/contributors), our families and friends,
- [Support staff that keeps forums usable](https://forum.armbian.com/members/2-moderators/),
- [Individuals that help with their ideas](https://forum.armbian.com/), reports and [donations](https://www.armbian.com/donate).
<palign=right><ahref=#table-of-contents>⇧</a></p>
## Sponsors
Most of the project is sponsored with a work done by volunteer collaborators, while some part of the project costs are being covered by the industry. We would not be able to get this far without their help.
[Do you want to see yourself below?](https://www.armbian.com/#contact)