Why I built this blog
The exposing-guidongui repository contains the tech stack of my personal blog, reachable at exposing.guidongui.com.
As the subdomain name suggests, I'm not seeking fame, just a public place to talk about my personal projects. Public exposure is a way to do better what I do every day and above all a way to finish the small projects I start and then very often leave in POC state.
I've always wanted a space where I could pour out my ideas, but for deontological reasons, I've always refused to use CMS like Hugo to build one. The day I would do it, it would be built from scratch by me so I could learn something new.
The goal is not to look pretty or smart to the world, but to learn by experimenting. I preferred simplicity over flashiness, custom Go libraries over frameworks.
The blog is completely self-developed, self-hosted in my Home Media Lab, which I hope I'll have the chance to talk about in future posts.
From the README:
net/http Standard Library
The server uses Go's standard net/http package without external routing frameworks.
Key patterns:

Uses Go 1.22+ method-based routing (GET /path)
Path parameters extracted via r.PathValue("id")
Handlers return http.HandlerFunc closures with dependency injection for readers
http.FileServer serves static CSS and JS from web/templates/

Go Templates
Templates use the text/template package with .gohtml files.
Homepage template (home.gohtml) iterates over posts:
<article>
    <h3><a href="{{.URL}}">{{.Title}}</a></h3>
    <address>{{.Date}}</address>
    <pre>{{.Summary}}</pre>
</article>

Post template (post.gohtml) renders single post data:
<title>{{.Title}}</title>
<pre>{{.Content}}</pre>

Data structures passed to templates:
type HomepageData struct {
    Posts []PostData
}

type PostData struct {
    Title, Author, URL, Date, Summary, Content string
    ViewCount int
}

Templates are parsed once at handler creation and executed per-request via tpl.Execute(w, data).
Goldmark Markdown Parsing
Goldmark converts Markdown posts to HTML.
mdConverter := goldmark.New(
    goldmark.WithExtensions(extension.GFM),  // GitHub Flavored Markdown
)

var buf bytes.Buffer
mdConverter.Convert(mdPost, &buf)
pd.Content = buf.String()

The GFM extension enables:

Tables
Strikethrough (~~text~~)
Task lists (- [x] done)
Autolinks

Custom Metadata Parser
Posts use a custom metadata format at the file start:

Asciinema Integration
The homepage displays a terminal recording via a self-hosted Asciinema server.
Frontend integration (home.gohtml):
AsciinemaPlayer.create(
    'https://asciinema.guidongui.com/a/34.cast',
    document.getElementById('asciinema-player'),
    { autoPlay: true, loop: true, theme: 'white', ... }
);

Self-hosted server (deploy/asciinema/deployment.yaml):

Runs the official ghcr.io/asciinema/asciinema-server image
PostgreSQL database in a sidecar container
Exposed at asciinema.guidongui.com via Traefik IngressRoute with TLS
Configuration: signups disabled, uploads require auth, public recordings