Github actions experiments
- Run GHA parallel jobs, 35s but used 2 build minutes
- Run GHA serial jobs used 1 minute
- Run each job in worktree in parallel threads, 45 seconds.
Docker containers in parallel complete faster end to end but double the minutes.
If I had any economic incentives, I probably could cut my build minute usage by 1/3 or 1/2 with better parallelism