I know I am an old angry guy but I really don't want things to 'feel' (not sure what that even is) more modern; I have projects that bring me millions a year which are running for over 2 decades now and this kind of 'modern' is just obsolete next year. I like profit and not being bothered by updates every 5 seconds. I have a simple stack, my saas apps are violently fast and they run for decades without me touching anything but some bugs/features. The modern feel is not required and in fact detrimental to just making bucketloads of business value and company wealth imho. But then again, we never had investors, so I don't know how it feels to burn other people's money.
Curious about your stack that you are using if you don’t mind sharing.