@bahmanm@usb_see Is openSUSE MicroOS out of beta and ready for productive use? Havenât read any news about it lately (I am on openSUSE Leap, so interested)
I'm not using it myself as am on Tumbelweed but I do know it's quite similar to the idea OP is talking about. Oh and I couldn't find any references to it being beta on the website đ€·ââïž
NixOS learning curve maybe is not so hard. You can start with default configurations and installed Calamares what is as simple as on other distros. Than look for options and try.
Otherwise, Flatpaks are reproducible (build with flatpak-builder as on Flathub).
I love vanilla OS, it runs well on my main laptop and is a pleasure to install and setup with every useful options, well made, I can't wait for the debian version.