[AdamGibbins]

That's been dead for years, replaced with https://brettterpstra.com/projects/nvalt/ which is replaced with https://nvultra.com/

[anaerobicover]

Also worth checking out is The Archive. There are some differences, but I've been very happy with it as a successor. https://zettelkasten.de/the-archive/

[codpiece]

The Archive is great! NValt is also wonderful. I use Archive for a true Zettelkasten and nValt for meeting notes.

[pjot]

nvUltra is still in beta. nvALT still works (Big Sur too) but hasn't been actively maintained.

I've been experimenting with FSnotes[0] lately and find it be be the closest an app has come to the simplicity of nvALT

[0]: https://github.com/glushchenko/fsnotes

[radiospiel]

Nvultra, on the other hand, is „coming soon“ for two years now. nothing to see there yet I guess