[milsebg]

I really like the idea of life time purchases rather than subscriptions.

To minimize the risk that your site goes down (or is economically unstable at some point in time), you could consider making this a paid downloadable app.

[kemyd]

In fact, you can buy lifetime license and use it on https://tailwind.build & https://bootstrapshuffle.com & https://bulma.dev

If my sites go down, I'll release a self-hosted version of the service, so you'll be able to run the editor on your local machine.

[camkego]

I'd pay double for a self-hosted version, that isn't phone-home dependent. This removes a huge risk that the service will one day disappear. (If your sites go down you may not be able to release a self-hosted version)