x11-cursor topic
warpd
A modal keyboard-driven virtual pointer
xbanish
Hide the mouse cursor when typing and show it again when the mouse moves
apple_cursor
Free & Open source macOS Cursors.
rootstealer
X11 trick to inject commands on root terminal.
highlight-pointer
Highlight mouse pointer/cursor using a dot - useful for presentations, screen sharing, ...
swcursor
Large software cursor for screen recording on X11
x11-input-supercharger
Adds system-wide Windows-like scrolling mode and conditional clicking using keyboard
win2xcur
win2xcur is a tool that converts cursors from Windows format (*.cur, *.ani) to Xcursor format. It also contains x2wincur which does the opposite.
Metamorphosis
The Ultimate Cursor Converter