Why you should check out Spacefast

A couple of weeks ago, I was sitting in the main room at WordCamp Johannesburg, and I realised that I’d forgotten to remove something (some QR codes) from almost every slide in my presentation!

Usually, a realisation like this results in a minor panic, rushing to open the presentation, and painfully making the change manually on each slide. I vividly remember this happening on the morning before my WCUS workshop in 2025. I woke up to an email that notified me of an update to one of the GitHub repositories that was part of the workshop. I then spent the next hour or so madly updating my slides in my hotel room before I’d even fully woken up. To make matters worse, I ended up introducing a bug in my slides, that I only discovered during the actual workshop!

This time however, I calmly opened my laptop, fired up a terminal session, kicked off an agent, and told it to remove any QR codes from the presentation and publish the updated version. Within minutes the newly updated presentation was published at the same URL I’d sent the speaker team the week before.

The reason it was all so easy? My presentation was a simple HTML page hosted on Spacefast!

What is Spacefast?

Spacefast is a hosting platform for all the things you build with AI agents. You hand it a folder and it hands back a URL. It’s built by Automattic, and powered by the same infrastructure we use for WordPress.com. It officially launched yesterday.

You can publish from a few places:

The sf CLI: npm install -g spacefast, then sf publish.
An MCP server, so Claude, ChatGPT, Cursor, VS Code or Claude Code can publish for you
The dashboard, or by dragging a folder onto drop.fast with no install at all
The HTTP API, if you want to script it

The important part is that Spacefast isn’t an AI builder. It doesn’t try to replace your agent. It gives the agent you already use somewhere to put its work. If you can tell your agent “publish this to Spacefast,” it can.

Why it works so well for speakers

One URL, forever

This is the feature that saved me in Johannesburg. A Space has a live URL that never changes. Every time you publish, the live URL just shows the newest version.

That means you can send the link to organisers, put it on your final slide, or turn it into a QR code weeks before the event. You can keep fixing typos, updating demos and tweaking the flow right up to the moment you walk on stage, and nobody ever needs a new link.

Every version is kept

Every publish also creates an immutable version with its own permanent URL. For a speaker, that’s surprisingly useful. The exact deck you gave at one event stays available at its own address, even after you’ve reworked the talk for the next event. If an attendee asks for “the slides from the talk”, you can give them exactly what they saw.

And if a last-minute change breaks something, you can roll back in one step. The live URL just points back to an earlier version, with nothing to rebuild.

Private until you’re ready

Spaces are private by default, with share links and passwords available. You can share a draft with a co-presenter or the speaker team for review, and only make it public when you’re ready. That beats emailing final-v3-ACTUAL-final.key around.

Your agent does the deploying

This is the part that changes how working on a talk feels. Because Spacefast has an MCP server and a CLI, the agent that edits your slides can publish them in the same breath. Writing, fixing, and shipping all happen in one conversation:

Remove the QR codes from every slide, then publish the update to Spacefast and give me the live URL.

It costs nothing to try

The free Personal plan needs no credit card and includes 20 Spaces and 20 custom domains. That’s room for a lot of talks, and you can even give your best one its own domain.

It’s not just for slides

I started with presentations, but the same idea works for everything around a talk: a workshop handout page, a resources page with all the links from your session, or a small interactive demo attendees can open on their phones. Spacefast handles static HTML, and also supports a wide range of popular frameworks, even building from a WordPress site.

Give it a try

If you speak at meetups, WordCamps or conferences, try this for your next talk:

Ask your AI agent to build your deck as a single HTML presentation.
Connect it to Spacefast. The easiest way is to tell it to fetch https://spacefast.com/setup.md.
Ask it to publish, and send that URL to the organisers.