From there, it's a case of growing the outpost's size until the planet is declared fully colonised. Instead, they spend Dust to instantly construct an outpost, staking a claim to the world.
For instance, the Lumeris don't send big ships filled with millions of people to colonise planets. The differences go beyond units and bonuses-each has its own specific purpose, ideology and systems. If you've played Endless Legend, you'll be familiar with Amplitude's asymmetrical approach to factions.