diff --git a/README.md b/README.md
index 2111c7f..7002861 100644
--- a/README.md
+++ b/README.md
@@ -216,8 +216,8 @@ through a list.
   or focus-move), the pointer is warped to the centre of the new pane so the
   mouse stays where your attention is — the same cursor-follows-focus feel as
   acme. On X11 this is a direct `QCursor::setPos`; on Wayland (which forbids
-  that) it uses the pointer-constraints protocol, matching how plan9port warps
-  the cursor there.
+  that) it uses the pointer-constraints protocol, following
+  [eaburns's Wayland devdraw/acme](https://github.com/eaburns/plan9port/tree/wayland).
 - **Configure:** drop a `radials.json` at `~/.config/deft/radials.json` to
   replace the built-in tree; when it is absent, empty, or invalid, the built-in
   default is used. See [docs/radials.example.json](docs/radials.example.json)
diff --git a/src/radial/waylandcursorwarp.h b/src/radial/waylandcursorwarp.h
index c345f42..9d55a5a 100644
--- a/src/radial/waylandcursorwarp.h
+++ b/src/radial/waylandcursorwarp.h
@@ -9,7 +9,8 @@
  * sanctioned way to reposition the cursor is zwp_pointer_constraints_v1: lock
  * the pointer to the surface it is already over, set a surface-local position
  * hint, then release the lock — the compositor warps the pointer to the hint on
- * unlock (this is exactly how plan9port/acme moves the cursor on Wayland).
+ * unlock (this is how eaburns's Wayland implementation of devdraw/acme moves
+ * the cursor: https://github.com/eaburns/plan9port/tree/wayland).
  *
  * Kate's split panes are child widgets of a single top-level window, i.e. one
  * wl_surface, so moving the pointer between panes is a warp *within* that