Don't know if it's still a good approach but a few years ago I used Preact with htm without any build tools for a project. No compilers, bundling or package man

Don't know if it's still a good approach but a few years ago I used Preact with htm without any build tools for a project. No compilers, bundling or package managers, on my part. (Preact and htm were, of course, pre-compiled and bundled so that might be a turn-off with this approach.) The Preact devs provided CDN links to add to your app but I decided to just download the two JS files and host them with the app's files. My only gripe back then was that the bundle for the Preact hooks library somehow had a CDN location hard-coded so I had to decide between using the CDN but having hooks or using class-based components but having it all local.