I only meant to rebut the factual claims made in the previous comment. Textual is inspired by web development (and I've always described it as such), but "want to be react" is way overblown. It has things in common with React, but equally many other web and UI frameworks. Heck you could say that Textual wants to be JQuery, and that would be just as apt...
maybe it depends on what the implicit reference class is. if you're comparing it to react, angular, ncurses, s-lang, jquery, vue.js, and php, then sure, things like html and css are hardly react-specific. if you're comparing it to ncurses, s-lang, win32, mfc, the vic in the commodore 64, winforms, whiptail, dear imgui, the tms9918 used in the msx, emacs lisp markers and text properties, gtk, the nintendo ppu, opengl and glut, xlib, xt, tcl/tk, ansi.sys, naplps, ripscrip, turbovision, direct access menu.exe, and react, it's basically exactly the same thing as react
jesus, i sure have built shitty user interfaces on a lot of platforms