One transaction, fixed 1B supply, fair-launch curve — on the network you choose. Name it, pick an image, and launch. Or go advanced and tune the fee split and tokenomics first. The initial buy is always the last call.
Not set in stone. You can edit the bio and links later with a free signature (no gas). Keep ownership and you can edit anytime; renounce it and you still get 10 days from launch to polish things (20 if the coin graduates).