Why do you need a CI at all? You can use a queue like Oban on your own server to kick off jobs. And with AI you can add new jobs, so long as they are well defined, in a few minutes and schedule them however you like. I only recommend this because I use a similar system. If you are planning on GitHub's recent instability to be improved in the future, I would not get your hopes up, they have a long history of instability.