A very underrated flippening:

It feels like these days when open source software devs make software with UIs *that runs locally*, a lot of the time the UI is built *as a webpage* and you access it by going to localhost:3030

As opposed to…? Fat native GUIs?

It feels like open source has slowly abandoned app categories that need the latter. Last one I can recall downloading is Inkscape. 

The localhost webpage model seems mostly for text heavy UIs. I haven’t seen rich graphic UIs in that style.

Blogger at ribbonfarm.com, running summerofprotocols.com, host of /gloom ☀️

Building a UI in the browser at this point is generally easier and in most cases superior to a UI built using a native OS framework.  Not to mention, it works on every OS without any platform specific code.

There are very few situations where I think using the OS native windowing system for UI is the right choice.