Sorry if this is completely off-base I'm just spit-balling here. Based on my reading it looks like git-annex could be contributing. It's a bit of a mess with the transition to Apple silicon (but I think Actions are still x64). I wonder if it's possible to just add git-annex to the environment_testing.yml file under dependencies. conda-forge packages git-annex, so this could (I hope?) help with Mac and Windows, but I'm not sure if that would negatively affect anything else with the build. Good luck!

Hi @zm711 In principle you are right, the issue is that the git-annex conda package you are referring to only exists for linux systems, so adding this package to the environment_testing.yml will again only work for linux systems. My next best guess would be to test the datalad installer to see if that manages to install git-annex on non-linux systems.

Hey @JuliaSprenger--you're right I didn't see that the conda-forge was just for Linux (too bad!). It might be more work than it is worth, but you can also brew install git-annex for Macs (brew install git-annex) and the Runner for Macs says it has brew already installed. But then you would need extra logic in the test files to separate out Mac vs Linux. In fact the DataLad website recommends brew install datalad to automatically get the dependencies rather than other installation methods. The datalad-installer will try to use brew under the hood for Macs.

I'm really not sure how the Windows story will work for this.