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Controversial opinion: GitHub actions are good enough.

I have one job that runs a shell script that runs tests, a second one that builds and pushes the docker image, and a third one that triggers CD.

Could it be faster? Yes. Could the log viewer be better? Yes. Could the configuration file format be better? Yes. Could the credentials work better? Yes.

However they're well integrated with GitHub (including GHCR), work well and are affordable.

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I basically agree.

But also, CI should be the last line of defense, not the first line.

If your system is not byzantine, you should be able to run almost all your tests locally and not need to boot a cloud machine that has to be setup from scratch and deal with all the overhead in your core loop.

Having a build system that knows what tests need to be run helps here since you're no longer just throwing compute at the problem.

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