second question: i have this weird behavior that jobs are executed on project load. i made an example repo here with some docs. can somebody explain that behavior to me? i am completely confused as to why that should be in any way useful.

Hi Axel - inspired by this question, I wrote up a short Github Discussion on this topic: https://github.com/dagster-io/dagster/discussions/12554. Let me know if it doesn't answer your question.

that really should be in the docs!! so helpful, because at least I was not expecting that behavior at all.