@atpfm @marcoarment Regarding your mac mini servers. If you create a private github repo, you can add all your mac minis as self hosted github action runners to the repo. Self hosted runners are free for unlimited use. You can then use github actions to orchestrate your minis, including cloning the repo to them and running scripts you keep in the repo to do the work. You can run actions many ways, including on a schedule for maintenance tasks. I do have a ton of experience doing this in my job.
@atpfm @marcoarment it sounds like you have already solved this problem, but you could actually use github actions as a job queue and use it to orchestrate the actual transcription process as well using a dispatch mechanism, but I'm not sure that is worth doing unless your current process is in need of reworking in some major way.