Zettelkasten shouldn't be complicated, but it is.
Zettelkasten is Complicated
There are a lot of things I like about Zettelkasten, but one thing I don't like is how complicated it is to set up. According to the building blocks of Zettelkasten blog post, a typical Zettelkasten system consists of an inbox, an archive, and a reference database.
Inbox**: the gateway into your knowledge system (e.g. Google Notes, Email, Apple Notes, etc.)
Archive**: the one, trusted place to look for information (e.g. Obsidian, Roam Research, etc.)
Reference Data