As someone curious to try out Temporal. What makes you think it is not simple, is it tricky enough that one should avoid it?
What else makes this Trigger.dev stand out compared to Temporal? Temporal already has self hosting option, multiple language support and a battle proven history. Even if trigger looks good on paper, it would need some other really convincing reason for me to consider a completely fresh tool over something more proven, that appears to fill the same space.
Good to see some competition in this space though. Workflows are too important to be relegated to flaky scripts, diy workflow engines or worst of all: yaml-as-code.