• Feature: Lifecycle hooks via setup({ hooks = { on_start = fn, on_stop = fn } }). on_start(url) runs after the preview is ready and receives the full URL (with the auth token included), useful when open_browser = false. on_stop() runs after the server stops and cleanup completes. Both default to nil. (#24, thanks @gogongxt)

Contributors

• @gogongxt

• Feature: default_theme = "dark" | "light" config option to set the initial preview theme. The in-browser sun/moon toggle still works after page load. Closes #19. (#16, thanks @gogongxt)
• Feature: mermaid_elk = true enables the ELK layout engine for mermaid diagrams, producing cleaner layouts for medium and large flowcharts and class diagrams. Off by default (adds ~800 KB CDN fetch). Enable per-diagram with %%{init: {"layout": "elk"}}%%. (#22, thanks @fuzzybear3)
• Security: Token auth on content.md and the live-reload control endpoints. A 128-bit token is generated at server start, threaded through the auto-opened browser URL, and stashed in sessionStorage. No user-facing config needed. (#23)
• Requires: live-server.nvim v1.4.0+ for the token auth feature. If you pin versions, upgrade both together. Lazy.nvim users on branch = "main" or version = "*" are fine.

Contributors

• @fuzzybear3
• @gogongxt

• Feature: browser config option to override the system default browser (#11)
  • browser = nil (default): system default
  • browser = "Firefox": browser by app/binary name (macOS uses open -a)
  • browser = { "google-chrome", "--incognito" }: full command with args

• Fix: overlay zoom-in no longer cuts off content. The fullscreen mermaid viewer now properly scrolls when zoomed beyond the viewport (#11)
• Feature: bottom_padding config option (0–1 fraction) controls how far the last line can scroll. Default 0.5 means the final line scrolls to the viewport midpoint (#12)
• Feature: WSL support — the preview now opens via explorer.exe on Windows Subsystem for Linux (#14)

• Strip YAML front matter from preview — metadata blocks no longer render as headings/text

• Add task list checkbox rendering (- [ ] / - [x]) via markdown-it-task-lists

• Remove heading anchor permalink symbols (#) from preview for cleaner readability

• Add takeover instance mode (default): single browser tab shared across Neovim instances via lock file coordination
• Add multi instance mode: independent server and browser tab per instance (port 0)
• Add lock file and remote event modules for cross-instance coordination
• Secondary instances get scroll sync via HTTP event injection

What's new

LaTeX math rendering

Added support for LaTeX math via KaTeX and markdown-it-texmath.

• Inline math: $E = mc^2$
• Display math: $$\int_0^\infty e^{-x^2} dx$$
• LaTeX environments: \begin{equation}...\end{equation}

All loaded from CDN, zero extra dependencies. Just update and it works.

Closes #6

What's new

Line-based scroll sync

Rewrote scroll sync from heading-based to line-based interpolation, inspired by peek.nvim and iamcco/markdown-preview.nvim.

Before: Only headings were tracked (5-15 anchor points), scrolling up was inconsistent, files without headings had no sync at all.

After: Every block element (paragraphs, headings, lists, tables, blockquotes, code blocks) is tagged with its source line number. The browser interpolates between the nearest elements for sub-element precision. Scrolling is instant (no animation fighting) and works in both directions consistently.

Fixes:

• Scrolling up no longer fights with itself
• Files with no headings now scroll correctly
• Layout shifts (images loading) re-apply scroll position automatically