I'm assuming you used Rails as a back-end? The reason I'm asking is that I've been diving into Elixir and Phoenix, and I'm wondering if the difference in speed

I'm assuming you used Rails as a back-end? The reason I'm asking is that I've been diving into Elixir and Phoenix, and I'm wondering if the difference in speed between those two would obviate the 'need' for React/Vue (or even be a faster solution). I'm a front-end dude, so no 'enemy' of those, but I keep finding myself preferring an Elixir-based (and thus server-side) solution because it's just such a nice language and so convenient to not have to switch for significant logic. For example, the fact that {} in js is a map/object, where in Elixir it is a tuple (a map would be %{}) keeps tripping me up, and it makes me generally either lean toward mostly server-side with some basic js snippets (Turbolinks style), or alternatively mostly client-side (React/Redux) with a 'dump' api backend in Elixir. At this point I'd really love to lean toward the server-side, but stories like yours make me wonder about that leaning.