I had a complex three-axis GitHub Action matrix, but needed to skip some combinations. I couldn’t get what I needed with the direct YAML syntax, so I used Cog to generate the matrix with Python.The matrix made Python wheels with cibuildwheel, and it worked. It had 15 jobs, but they built different numbers of architectures (ubuntu made three, windows made two, macos made only one). This made the overall run take longer, and made it harder to dig through logs to see if everything went OK. Concep...