Markdown buddy

Simple application for writing markdown files with live preview and a section list.

Made for educational purposes of learning how to combine a single backend with platform native frontends via the C ABI.

Linux:

MacOS:

Windows (wine)

Very much a work in progress.

Structure

Multi language setup:

• Backend: Odin -> C ABI
• Frontend Linux: GTK4
• Frontend Mac: SwiftUI
• Frontend Windows: Win32

Build

General requirement: Odin, C/C++ compiler/build tools

Tested tool versions:

• Odin: dev-2026-03:1a5126c6b

• GTK4: 4.20.3

• Swift: 6.2.4

• Zig: 0.15.2

• Linux:

  extra requirement: GTK4 4.20.3

  bash build-linux.sh
  ./dist/markdown-buddy-gtk4 example.md

• macOS:

  extra requirement: Swift 6.2.4

  bash build-mac.sh
  ./dist/markdown-buddy-mac example.md

• Windows (wine):

  extra requirement: Zig 0.15.2

  zig build --build-file build-windows.zig windows --release=fast --prefix dist
  DISPLAY=:0 wine ./dist/markdown-buddy-win.exe example.md