Who'd have thought that a CMS could still make money in 2024, but this one is around £500 a month.

It obviously doesn't pay the bills or the mortgage, but it works. All my clients are word of mouth, I do not advertise at all (a combination of costs and insanely opaque / fractured advertising models by Facebook and co...I don't have time to get a phd in your ad platform to see if any of my money is actually doing anything)

I build it originally because I was fed up with Wordpress / Squarespace / Weebly / Wix, because all of their interfaces are slow and don't work on mobile.

This CMS is fast and works on mobile.

It's also pretty cheap nowadays, as I've not been raising prices like everyone else.

It won't do super-flashy websites. It's mostly about having low-JS, good SEO, easy access to information, which can be managed by very inexperienced users (I live rurally and we have a fair few pensioners as clients, they all get along with the system very well).

There are just about a billion things I want to do with it, but it never made enough money to become my full-time job, so it mostly just sits there and does its job.