support for Unicode combining?

[aspiers]

I just discovered "Unicode combining" which to my naive eyes seems like a superior alternative to XCompose -- or perhaps at least a useful layer on top of XCompose (I'm not entirely sure how it works):

• https://gitlab.freedesktop.org/xkeyboard-config/xkeyboard-config/-/blob/master/symbols/us#L1907
• https://github.com/melissaboiko/us-intl-unicode/blob/master/README

The idea of typing a key like e first and then a keystroke to add the accent to modify it to é seems nicer than having to hit a Compose key first and not having any visual indication that you've hit it. As the README linked above says:

This postfix method has the advantage of avoiding hidden states; pressing a key always change something in the screen.

Is there any way this can be supported via keyd? Or if not, any plans or at least interest in potentially supporting that in the future?