Is the OnePlus 1 on LineageOS 16 one of the devices you plan to support (yeaaaaah!),
We'd love to but would need your help as we don't have the hardware to develop ot test.
Code:
or only their stock ROM (boooo!!)
Not only but as well. We usually provide a "stable" image for the last available stock OS. This one is our favourite because it is stable and available. LOS tends to pull images when they are out of support.
If there is demand and someone willing to develop it, we also release a "latest" image, which is usually for the latest stable LOS version.
Code:
And if I can get it going myself, how would I go about submitting the work to you guys for testing??
Raise a merge request and we can help getting it integrated with our build tools. Testing is up to you though because we don't have the hardware to test.