https://www.dokuwiki.org/dokuwiki
DokuWiki (PHP, flat-file)
- Maturity & stability: Actively developed since 2004, very stable.
- Storage: All content stored in plain text files (no DB at all).
- Portability: Just copy the folder; backups are trivial.
- Features: User management, access control lists, plugins, templates.
- Syntax: Own lightweight markup, but easy to learn.
- Use case: Great for documentation, personal wikis, code snippets, knowledge bases.
This is probably the closest modern equivalent to self hosted Wikie in philosophy.
TiddlyWiki (Single-file wiki in HTML/JS)
- Maturity: First released in 2004, still maintained.
- Storage: Everything in a single self-contained HTML file (JavaScript inside).
- Portability: Just copy one file, runs in any browser.
- Hosting: Can be self-hosted on any web server, or even run locally.
- Features: Plugin ecosystem, themes, good for personal notes and code snippets.
- Use case: Perfect for highly portable personal wikis, though less suited for multi-user environments.
This is the most portable option — literally one file to back up.
