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A loosely moderated place to ask open ended questions
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Not regarding lemmy support (c/lemmy_support)
not ad nauseam inducing (please make sure its a question that would be new to most members)
I don’t know much about Obsidian, but I know it is a popular choice. On my wife’s Mac I tested out a markdown editor called Zettlr which is designed for managing a zettelkasten. It seems like a good option. A lot of the tools people seem to be using for zettelkasten use markdown, so you could potentially migrate among them with minimal adjustment.