My memory has faded, but you'd be surprised at how easy it can be to 'roll your own' ISO. It may be worthwhile to look at the big distributions (Fedora, Debian

My memory has faded, but you'd be surprised at how easy it can be to 'roll your own' ISO. It may be worthwhile to look at the big distributions (Fedora, Debian, SUSE, Arch, etc) and see if you can find anything that fits your taste. It can be as simple as 'inserting a coin and pulling the lever'; I recall listing some extra packages and running a command to download the assets/press the ISO. Nix(OS?) tries to be something like this IIRC, but it's less "provide something extra" and more... start by defining the nucleus.