I tried acme.sh and it failed with "Incorrect TXT record"
In 10+ years of web development, I've only marginally heard of ACME once when I had to get a wilcard cert. I highly, highly doubt that in any webdev interviews, anyone has ever been asked about ACME. I still have no idea what it is, and frankly, don't care. There's way too much stuff I need to keep up with when it comes to full-stack web development and JS library churn, to also concern myself with ACME. That's devops. I'm just a webdev who wants a wildcard cert, and I managed to get one by essentially running a one-liner. I really don't think it's worth it understanding the mechanics of ACME for me any more than it's worth understanding fluid dynamics in order to drive a car.