Middle-click autoscroll in every Chromium-based application on the system, and in anything installed later: hold the middle mouse button, move the pointer, and the page scrolls.
This page is the package repository. Set it up once and every new version arrives with the rest of your system updates. The source and the documentation are on GitHub.
sudo install -d -m 0755 /etc/apt/keyrings
curl -fsSL @BASEURL@/KEY.gpg \
| sudo gpg --dearmor -o /etc/apt/keyrings/middleclick-autoscroll.gpg
echo "deb [signed-by=/etc/apt/keyrings/middleclick-autoscroll.gpg] @BASEURL@/deb ./" \
| sudo tee /etc/apt/sources.list.d/middleclick-autoscroll.list
sudo apt update
sudo apt install middleclick-autoscroll
sudo curl -fsSL -o /etc/yum.repos.d/middleclick-autoscroll.repo \
@BASEURL@/middleclick-autoscroll.repo
sudo dnf install middleclick-autoscroll
sudo rpm --import @BASEURL@/KEY.gpg
sudo zypper addrepo --gpgcheck --refresh @BASEURL@/rpm middleclick-autoscroll
sudo zypper install middleclick-autoscroll
paru -S middleclick-autoscroll
middleclick-autoscroll enable
That is the whole setup. Nothing else has to be configured and no file has to
be edited. Run middleclick-autoscroll disable before removing the
package. It puts back everything that was changed.