Keyboard remapping on Windows 10: How can I map a long-pressed Enter/Return key to a modifier key (e.g. Ctrl)?

Question

I'd like to remap a long-press of an Enter/Return key to Ctrl(right), while keeping a short-press as Return.

I spend a fair amount of time in the terminal, particularly in Emacs in a WSL2 Ubuntu environment. Using long-press enter as Ctrl(right) makes Emacs commands much more comfortable. On MacOS I've used Karabiner Elements to achieve this but have not found a way to do it on Windows.

I've used the Keyboard Manager tool from Windows Powertoys to remap CapsLock to Ctrl(Left), but this tool doesn't have a mechanism to distinguish a long-press from a short-press.