01Pick one workflow that already hurts
A first release should make one painful workflow measurably better for a small group of real users. Everything outside that workflow waits, however cheap it looks to add.
02Design the data model properly, ship the UI narrow
Schema mistakes are expensive to unwind; screens are cheap to change. Spend the early thinking on entities, relationships and permissions, then build the smallest interface that exercises them.
03Put it in front of users while it is still awkward
Real usage rewrites the roadmap within a fortnight, and always in a useful direction. The cost of a delayed launch is not the delay itself — it is building four weeks of the wrong thing.
04Automate deployment from day one
Preview environments and a one-command deploy sound like a later concern. They are the reason a small team can ship every week without breaking what already works.