[takkatakka]

1. For me, at a senior dev level, about half are multiple rounds of leetcode / system design and the other half are some sort of live coding something more practical.

2. I think they're mostly just making calls to the existing LLM's apis.

3. I ask myself why I started the pet project. If it was to learn something new, well, I probably got bored because I learned the the part that was interesting to me.