Markdown Prism

Hi HN,I built a macOS-native Markdown viewer/editor called Markdown Prism.Website: https://prism.huconn.xyzGitHub: https://github.com/hulryung/markdown-prismI originally built this for myself. I wanted a lightweight Markdown viewer on macOS that:wasn’t Electron-basedrendered GFM properlysupported LaTeX math and Mermaid diagramsworked fully offlineMost native apps I tried were either minimal but missing key features (math, diagrams), or full-featured but Electron apps. I wanted something in between — native feel, but with the mature JS Markdown ecosystem.How it worksIt’s a hybrid approach:SwiftUI for the native app shellWKWebView for renderingmarkdown-it, KaTeX, highlight.js, and Mermaid.js bundled locallySo you get native performance and integration (Quick Look, file watching, drag-and-drop), but still benefit from battle-tested JS rendering libraries. Everything is bundled for offline use.FeaturesSplit-pane editor with live preview (400ms debounce)GFM (tables, task lists, strikethrough)LaTeX math via KaTeXMermaid diagram supportSyntax highlighting (190+ languages)Quick Look extension (preview .md in Finder)Dark modeFile watching for external editsInstall via:brew install hulryung/tap/markdown-prismor download the DMG from the website.It’s free and open source (MIT), macOS 14+.Would love feedback — especially from people who use Markdown heavily. What’s missing? What would make this your daily Markdown tool?