The website that has everything: blog and journal, project design and doc.

All under one roof, living in perfect harmony:

• a blog for random thoughts and inspirations that are somewhat fully fleshed out
• doc for multiple projects, where each project can might have a spec, some user documentation and reference, maybe autogenerated API doc
• a daily journal (eventually private to authorized readers only) a full fledged technical documentation site

Each of these main sections should have different rendering conventions, suited to the purpose. blog and project doc are somewhat formal and will presumably have structured format: tags, TOC... Journal intended for off-the-cuff paragraph inserted into an existing date-oriented layout.

C.F a wiki, which might have the flexibility to represent all this content, but wiki text isn't easy to tailor to these diverse purposes.

The content here should be typically what you expect to find for a project: a spec, some design doc (which documents the config for Zola, and other tools) and user doc (notes on how to use the various tools to do the daily things: add a section/page, drop a journal entry...