Short answer: cost is manageable once you understand the core mechanic.
**Why:** once you have done it once, the second time takes half the effort. Specifically with cost: use local transport over tourist shuttles.
**Watch out for:** jumping in without a clear goal. This catches a lot of people who assume cost is simpler than it actually is.
**To go deeper:** the official documentation is actually quite good on this one.
Realistic time to feel confident: faster than you think once you get the first working example.
by ryanyoung8405