Gromit-MPX is an on-screen annotation tool that works with any Unix desktop environment under X11 as well as Wayland.

Responsive range slider library written in typescript and using web component technologies. Pure JavaScript without additional dependencies. It has a rich set of settings, including any number of pointers (knobs), vertical and horizontal slider, touch, mousewheel and keyboard support, local and session storage, range dragging, and RTL support.

Use two mice and keyboards on the same host.