Show HN: Ferrite – Markdown editor in Rust with native Mermaid diagram rendering

Summary

Ferrite A fast, lightweight text editor for Markdown, JSON, YAML, and TOML files. Built with Rust and egui for a native, responsive experience. ⚠️ Platform Note: Ferrite has been primarily developed and tested on Windows. While it should work on Linux and macOS, these platforms have not been extensively tested. If you encounter issues, please report them. Screenshots Raw Editor Rendered View Split View Zen Mode Features Core Editing WYSIWYG Markdown Editing - Edit markdown with live preview, click-to-edit formatting, and syntax highlighting - Edit markdown with live preview, click-to-edit formatting, and syntax highlighting Multi-Format Support - Native support for Markdown, JSON, YAML, and TOML files - Native support for Markdown, JSON, YAML, and TOML files Tree Viewer - Hierarchical view for JSON/YAML/TOML with inline editing, expand/collapse, and path copying - Hierarchical view for JSON/YAML/TOML with inline editing, expand/collapse, and path copying Find & Replace - Search with regex support and match highlighting - Search with regex support and match highlighting Undo/Redo - Full undo/redo support per tab View Modes Split View - Side-by-side raw editor and rendered preview with resizable divider - Side-by-side raw editor and rendered preview with resizable divider Zen Mode - Distraction-free writing with centered text column - Distraction-free writing with centered text column Sync Scrolling - Bidirectional scroll sync between raw and rendered views Editor Features Syntax Highlighting - Full-file syntax highlighting for 40+ languages (Rust, Python, JavaScript, Go, etc.) - Full-file syntax highlighting for 40+ languages (Rust, Python, JavaScript, Go, etc.) Code Folding - Fold detection with gutter indicators (▶/▼) for headings, code blocks, and lists (text hiding deferred to v0.3.0) - Fold detection with gutter indicators (▶/▼) for headings, code blocks, and lists (text hiding deferred to v0.3.0) Minimap - VS Code-style navigation panel with click-to-jump and s...