(FIXED) Custom domain issue, with no response from Support

I was so keen to use Blot, but my custom domain isn't working despite following all the instructions. The issue lies with Blot, not my domain manager (Cloudflare). It's frustrating that I've had no response from requests to support.

I fully support the developer's right to take time off, but at the very least I'd expect an out-of-office auto-response. Is Blot really run by just one person?

EDIT: Okay, it works now, yay! I suspect the dev is back on board and has fixed things behind the scenes. Blot is such a good fit for me, I'm willing to pay for it even when free options exist for putting my Markdown files online (eg. Quartz or Digital Garden via Obsidian). Fingers crossed more people can shoulder the weight of customer service! I really want to see Blot keep going.