How many of what for baby clothes?

Currently 22w pregnant with our first and so excited to begin our parenting journey! Just a little stumped on what clothes we will need.

We plan to have more kids in the future, so keeping clothes for hand-me-downs. The only thing is, we move every 2-3 years or so, so we don’t want to be lugging around more clothes than we need. Also, the places where we live are not guaranteed to have tons of storage. At the same time, I want to make sure that we aren’t defeated by back-to-back blowouts or a string of muddy days.

We currently live in a climate that is 80+ degrees year round and doesn’t dip below 72 even on the coldest nights.

How much of what do we need? And, relatedly, how do we minimize gifting of surplus clothes (family already knows we are having a boy)?

Edit: as much as I love the suggestion to buy as we go, that isn’t really an option. We will have easy access to clothes for the first 2 months, but after that anything we buy we will have to order at least 6 weeks in advance, so it isn’t practical because baby will outgrow clothes before they arrive.