The star, boost and reply counters sitting right under this post's title belong to a toot, not to this site. And the comments at the bottom of this page are that toot's replies. That's the whole system — here's how it works.

When a post is published, the engine announces it on Mastodon or Bluesky — one network per site, never both; the build refuses a config with two, because comments live in exactly one place. Replies to that announcement are the comments: your browser loads the thread straight from the network's public API, no login, no key, no middleman. The counters under the title are the same numbers, read from the same toot.

What falls out of that

No comment database — nothing to migrate, back up, or moderate at 2am. No spam filter, because the network already has one, and it's better funded than mine. The comment count is just the reply count. And moderation is your instance's moderation: block, mute and report all work exactly where the conversation actually happens.

The comments also belong to the people who wrote them, in their own timeline, under their own name. A reply here is a real post by a real account — not a row in my database wearing a nickname.

What it costs

Honesty first: if you're not on the Fediverse or Bluesky, you don't get to comment. That's a real cost and I won't pretend otherwise. You can still read the thread — it's public — and the bar for joining is an email address. For a personal blog, I'll take that trade over hosting a login system every day of the week.

Two details that earn their keep

unpublish deletes the announcement too. A toot pointing at a dead URL helps nobody, so taking a post down takes its thread anchor down with it.

Imported posts don't announce. The auto-announcement has a 24-hour window around "now" — so migrating a thousand posts from your old blog doesn't turn into a thousand-toot night for your followers. (You can still announce any post manually, whenever it deserves it.)

Try it on this very post

This is the part I can't fake, which is exactly why it's the demo. Reply to this post's toot — what's missing here, what would make you use this engine, or what convinced you not to — and your reply appears below, hosted by no one, moderated by your instance, owned by you.

Post read: $0.005 per resource. Post creation: $0.015 per request — $0.200 when it carries a URL. Free public read access: none.— X API pay-per-use pricing, docs.x.com, checked July 2026

Two networks are in. Two are not — and here's the whole reasoning, because "we decided against it" is not a reason.

./blog.sh announces every published post on Mastodon or Bluesky, and the replies to that announcement become the post's comments. For that to work, the engine needs two things from a network: a way to post, and a way for a browser to read a public thread. Cheap, ideally free, forever — because a personal blog is a decades-long project with a hobby budget.

X: no

Look at that price list again. Announcing a post with a link costs real money. Loading the reply thread — which happens every time anyone scrolls to the comments — costs real money, per read, forever. On a personal blog, that's a subscription to your own comment section, billed by your readers' curiosity.

There's no engineering answer to a pricing decision. So: no.

Threads: not yet

Threads is genuinely feasible, and the design is sitting in a drawer. But look at what "feasible" means here:

Publishing and reading replies to your own posts works — server-side only, through a registered Meta developer app, with OAuth and 60-day tokens.— the Threads API docs, summarized

In practice that's a cron job refreshing tokens so they never silently expire, and comments cached into JSON with roughly a half-hour delay — instead of the live thread Mastodon and Bluesky hand any browser for free. It's all buildable. It's just a lot of standing machinery for a network nobody has asked me about yet. The day someone does, the drawer opens.

Scraping Threads: no, and firmly

The tempting shortcut — skip the API, scrape the web app — fails three ways at once. The app's internals change constantly and no community project maintains a stable interface to them. Meta blocks datacenter IPs and forbids automated collection in its terms, so shipping a scraper in a community engine means handing every user a feature that breaks without warning and can put their account at risk. And the paid scraping services fail the same test with extra steps: per-request pricing, your data flowing through a third party, and a dependency on someone else's ongoing legal cat-and-mouse.

The scoreboard

Mastodon and Bluesky are in because they pass the boring test: free to post, free for a browser to read a public thread, no tokens with expiry dates in the critical path. Any network that starts passing it is welcome. Any network that stops — well, now you know the exit criteria too.