inkwell.

inkwell is a self-hosted, multi-user knowledge base in the spirit of Obsidian — but it runs on your own server and your team works in it together. Notes are plain Markdown files stored in a Git repository, so every edit is a commit: your data stays portable, diffable and yours. Features:

• Markdown over Git — every note is a .md file, every save is a commit with an author
• Wikilinks and embeds: [[note]], [[note|label]], transclusion via ![[note]]
• Backlinks and graph view with context, unlinked-mention surfacing and whole-vault exploration
• Inline #tags and front-matter tags with nested tag trees and filtering
• Full-text search with tag:, path:, title: queries and a Ctrl/Cmd-K quick switcher
• Per-note version history, side-by-side diffs and one-click restore
• Accounts, admin/editor/viewer roles, per-folder access control, live presence and concurrent-edit detection
• Export to PDF/HTML, bulk vault export and read-only published share links

And more on github.com/eltaline/inkwell