2022 Darknet Opsec Bible – Telegraph

Do not ship to your real address, use a dead box. Your vendor may be an informant, or may become one, while your address is in their file.

The rest is mostly good advice.

You can add plausible deniability by running tails out of a USB stick, with a second decoy system which you use often enough to watch questionable porn, in order to justify having it when the police finds it.

Interesting point about how checking tracking numbers can leak information about you. Even if you're not doing anything illegal, the shipping companies know your name, address, and what companies you buy from. Checking tracking numbers gives them your IP, fingerprinting info, and probably a lot of tracking cookies!