where is the source code for bording/crossbuild?

[kasperk81]

libgit2sharp.nativebinaries/Dockerfile.linux

Line 1 in ad7caf7

FROM bording/crossbuild

if we want to add new arch, which repo should we look? ideally its sources should be in this repo or somewhere under libgit2: a github action which runs the shell script to create the image, the action is triggered when shell script is updated in main to keep the workflow in sync