Nicheloom

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vellum.nvim

Live, beautiful GitHub-markdown preview beside your buffer in Neovim — mermaid diagrams as real images, in the terminal.

Details

External ID
1382130643
Source
GITHUB
Company
—
Product
vellum.nvim
Website domain
github.com
Launched
Sept. 22, 2026
Cohort
—
Upvotes
79
Upvotes percentile
0.8985395849346657
Tags
—
Fetched at
Sept. 26, 2026, 10:54 p.m.
Updated at
Sept. 26, 2026, 10:54 p.m.

Enrichment

Theme
markdown editors and writing tools
Vertical
Horizontal
Function
Dev tools
Audience
Developer
AI stance
Not AI
Project type
Hobby / open-source project
Normalized one-liner
live markdown preview plugin for neovim
Manually corrected
False

Could you build this?

Partial Writing a basic Neovim plugin in Lua is easy, but rendering live terminal-based graphics (like Mermaid diagrams) requires tricky integration with terminal graphics protocols (Kitty, Sixel, Überzug) and external rendering pipelines.

What it would actually take: The plugin needs a Lua codebase interacting with Neovim's buffer API, coupled with a headless renderer (e.g., mermaid-cli/Playwright or Rust-based SVG rasterizer) and support for terminal graphics protocols like Kitty graphics protocol or Sixel. Handling real-time debouncing, window splits, buffer synchronization, and cross-terminal graphics quirks requires specific systems-level CLI and terminal emulator experience.

Competitors

Other products that read as similar to this one — 63 launches clear the similarity bar, closest 8 shown.

Attention rank: #10 of 64 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).

Launched 292 days after the earliest competitor.

Other launches for this product

Same idea, different domain

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