I've handwritten my website html/css/js and I'm looking for a CMS solution that is dead simple to install on a server (possibly something like uploading a folder to my ftp with the CMS in it) and connecting it is roughly a copypaste of tags into h1-h6-p/image areas of the page. I'm not looking for the most popular solutions (no wordpress, drupal and its friends), I'm looking for something that is easy to setup, easy to connect and most importantly doesnt mess up a nicely working page. I've used wordpress before and I dont like that a page needs to be fixed because wp needs it to be chopped up into parts, which creates a lot of problems on its own - that can be solved with plugins that slow down the site and either work or don't together, etc etc etc, ... its wordpress.
I have looked up headless CMS solutions, and wanted to try a few, but I'm usually stuck at some point:
strapi - requires node js on the server, I need something that can run on any hosting environment without complicated setup
prismic - looks nice, but I'm stuck at the point of how to connect it with a static html website that is not generated by a static site generator (on their integration page theres solutions with npm, i see no option to connect it to a simple static website)
perch - its pretty close to what I'm looking for but is a pain to install since it needs a bunch of hosting settings that I dont really have access to / or dont really want to mess with
Any ideas?