Once you have Bots and all things automated to build assembling machines run by bot logistic automated you can leave. You can then build everything remotely. But’s i a good idea to have the base in a “healthy” state and able to provide you with some extra resources in the beginning. For that you of course need a ship/platform that can reliable travel between nauvis and the first planets. That ship can also take you back once have built a rocket silo on the new planet.
Once you have Bots and all things automated to build assembling machines run by bot logistic automated you can leave. You can then build everything remotely. But’s i a good idea to have the base in a “healthy” state and able to provide you with some extra resources in the beginning. For that you of course need a ship/platform that can reliable travel between nauvis and the first planets. That ship can also take you back once have built a rocket silo on the new planet.