Personal blog, built with Astro.

Dependencies are pinned with Nix and loaded automatically by direnv:

direnv allow      # once, then the dev shell loads on cd
pnpm install
pnpm dev          # http://localhost:4321

Without direnv, nix develop gives the same shell.

Posts live in src/content/posts/*.md. Frontmatter:

---
title: "제목"
date: 2026-08-22T00:00:00+09:00
draft: false
tags: [golang]
---

Drafts are shown by pnpm dev and excluded from pnpm build.

Post images go in src/assets/posts/<slug>/ and are referenced with a relative markdown image, whose title becomes the caption:

![alt text](../../assets/posts/my-post/diagram.png "[그림-1] 설명")

The build converts them to WebP (animated GIFs included) and fills in width/height/loading, and src/markdown/figures.ts wraps the pair in a <figure>. Nothing has to be optimised by hand — just keep sources at a sane resolution, since the article column is 760px wide and the build does not downscale.

The social card is the one image built outside the pipeline; regenerate it with scripts/make-og-card.py after changing the site name.

Pushing to master builds and publishes to GitHub Pages via .github/workflows/deploy.yml. The custom domain (blog.sungjunyoung.dev) is held by public/CNAME.

src/
  components/   header, footer, post card, TOC
  content/      posts (Astro content collection)
  layouts/      Base (shell), Page (standalone markdown pages)
  markdown/     Sätteri plugins: emoji shortcodes, heading anchors
  pages/        routes — /, /posts/…, /tags/…, /about/, /index.xml
  scripts/      theme toggle, mobile menu, code copy button
  styles/       design ported from the hugo-theme-hello-friend
public/         static files served as-is