Although I have searched a lot of posts related to this topic, but because the time has passed, it is invalid.
I have read related posts before using jsonnet instead of matrix.But in recent months the documentation has been revised, and it’s hard to understand how many changes have been made. I think you should write the instructions in the documentation.
For example, I want to build php and its variant(see here), I can use travis to set environment variables directly (Looks like the matrix in the 0.8 version of the drone). But now the latest version of the drone I don’t know how to do it.
I think you need to explain the latest version of the drone in this regard.