How to buy memecoin at launch?

been trying to figure this out. when a token launches, it immediate sells with people already making profits. but when i try to buy using the token address, it says not found. how are these people getting in so fast?

when i check their transactions, it shows they used raydium or jupiter, but the token address doesn't work on my end yet. am i missing something obvious here?

what i've noticed is

by the time the token shows up on dexscreener, there's already a bunch of activity. sells happening right away, price already moved. but i can't even find the token to buy yet.

is there a different way people are accessing these launches before they hit the aggregators? or are the people selling immediately just insiders who already had the tokens?

my actual questions

how do people get access before the token address is searchable? are they using a different entry point than the standard platforms?

is it bots sniping the pool before it's indexed anywhere? or is it mostly presale buyers and devs dumping?

when you guys catch launches early, how are you actually getting in? what's the process?

appreciate if anyone can break down how this actually works instead of the usual ""you're too slow"" answer.