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FR-AI / ANALYSIS

Why it is worth attention

It addresses a specific need for a monospace font with well-fitted Korean glyphs and Nerd Font symbols, providing a reproducible build pipeline and 16 variants.

Who it is for

Korean-speaking developers who code in environments that benefit from monospace fonts with accurate Hangul rendering
Users of terminal emulators and code editors who need Nerd Font icons alongside Korean text
Font enthusiasts interested in reproducible build workflows for custom font combinations
Developers working on multilingual codebases where Korean comments or identifiers are common

Use cases

Writing and reading Korean comments in source code within editors like Zed or VS Code
Using a terminal emulator (e.g., Ghostty) with Korean output and Nerd Font symbols
Building a custom monospace font for personal or team use with consistent Korean glyph metrics
Evaluating different Korean monospace font combinations for readability

Strengths

Integrates JetBrainsMonoNerdFontMono (ligatures, Latin, Nerd Font symbols) with Pretendard Korean glyphs in a single font family
Applies a 1.15 scale to Pretendard to reduce unnecessary spacing around Korean glyphs, improving visual stability
Provides 16 variants (8 weights × upright/italic) via a reproducible build script with CLI options
Outputs TTF, OTF, and WOFF2 formats, suitable for desktop and web use

Considerations

Italic variants use upright Pretendard Korean/CJK glyphs because Pretendard does not provide true static italic Korean fonts in the pinned archive
Does not include a Black weight due to missing matching JetBrainsMonoNerdFontMono source
Requires manual visual check to confirm the default Korean scale across variants before release

README quick start

Jetendard

This project is heavily inspired by Yeomil Mono and reuses much of its implementation with minimal changes. Compared with Yeomil Mono, Jetendard uses JetBrainsMono Nerd Font Mono instead of Geist Mono and applies a 1.15 scale to Pretendard. Slightly enlarging Pretendard reduces unnecessary spacing around Korean glyphs, making Korean word spacing feel more visually stable while improving the clarity and precision of Hangul rendering.

Jetendard is a reproducible font build project that combines JetBrainsMono Nerd Font Mono with Pretendard Korean glyphs.

The generated family is named Jetendard. Latin glyphs, programming ligatures, and Nerd Font symbols come from the ligature-enabled JetBrainsMonoNerdFontMono files. Korean and CJK glyphs come from Pretendard and are fitted into exactly two Latin monospace advances.

Zed Editor (font size 13.5)

Zed Editor (Korean comments)

Ghostty Terminal (Text Output)

Ghostty Terminal (Codex)

Build

uv sync --all-groups
make download
make run
make test

make run builds the full 16-variant family.

Generated files are written to:

fonts/ttf/Jetendard-*.ttf
fonts/otf/Jetendard-*.otf
fonts/webfont/Jetendard-*.woff2
fonts/webfont/jetendard.css

Generated outputs and upstream downloads are intentionally ignored by git.

CLI

uv run jetendard --help

Important options:

--latin-dir: directory containing JetBrainsMonoNerdFontMono-*.ttf
--cjk-dir: directory containing Pretendard-*.ttf
--all: build the full 16-variant matrix
--variants: explicit output variants such as Regular, Italic, or BoldItalic
--weights: weights to build; without --styles, this selects upright variants
--styles: normal, italic, or both
--korean-italic-mode: Korean/CJK policy for italic variants, currently upright
--korean-scale: visual scale for Korean/CJK glyph fitting
--scale: compatibility alias for --korean-scale

The default Korean scale is 1.15.

Examples:

uv run jetendard --all
uv run jetendard --weights Regular Bold -

Description

JetBrainsMono Nerd Font Mono rebuilt with Pretendard Korean glyphs for balanced Hangul monospace rendering.

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