Thinking of using Zettelkasten , recommend software/platform

Roam is the web-based app that is the coolest-looking way to do Zettelkasten. I considered it, but decided against it for two reasons: 1) Although it is free now, they could decide to make me pay; and 2) I prefer to run apps on my own machine.

I ended up going with The Archive, free Mac-only software associated with zettelkasten.de, the organization which probably more than anyone else is promoting zettelkasten using a digital approach (as opposed to 3x5 cards).

I'm happy with The Archive, but not so much with the documentation on their website. They spend lots of time promulgating their approach to organizing (or not organizing!) notes, but very little describing the nuts-and-bolts basics. I would have never figured out a workable system had I not been home from work due to the corona virus.