neuron VS mkdocs-material

Have you considered neuron or it's successor emanote?

It requires the neuron binary to be installed.

You can use vim-plug (or whatever) to get neuron.nvim, but neuron.nvim depends on neuron, which AFAICT, you have to pull from the GH Releases page or use nix to install: https://neuron.zettel.page/install.

zk also interoperates with neuron (of which I'm the author!).

https://neuron.zettel.page :: CLI+webUI

You can set up a git repo and use emanote or it’s predecessor nueron to set up the GitHub pages for free. But both projects have some issues rendering the Obsidian flavor markdown files (translutions, block reference etc.) compared with Obsidian Publish.

I use https://neuron.zettel.page/ for long lived things, and things I want to explore more visually. It has great emacs support, stores everything in .md, and auto generates the same site as what you can see on their website.

Material Mk-Docs by Martin Donath works well if you prefer python.

https://squidfunk.github.io/mkdocs-material/

I'm an 'outsider', but from from the outside the Material For MkDocs Project looks like a very well managed open source project.

Martin Donath's project uses a 'sponsorware' release strategy to generate donations.

From my vantage point it seems to be working pretty well.

I just recently went through this decision process. My aim is to write code and math oriented posts so I need good support for nice syntax highlighting (at least colored) and mathjax (preferable) or katex. Substack is the most popular newsletter platform but fails at these two criteria. I love how math and syntax highlighting (plus numerous other features) work in MkDocs Material, which recently added a Blog plugin.

I wanted to combine the best of both: Substack as an amazing email social network, and MkDocs Material’s awesome look. So I’ve gone with using Substack as the core platform which I use to manage subscribers, and use it to post either math/code-free posts or a short teasers pointing to my main blog site on MkDocs Material when I need to show math/code

https://squidfunk.github.io/mkdocs-material/

I've been migrating content to MKDocs (Material) over the last few months, so feel fairly qualified on this subject. It's somewhat limited in terms of navigation, but can probably handle 400-500 pages; you can see how navigation works in the link. Otherwise, it can handle most, if not all, the tasks you've listed.