First of all, I want to clarify that I am a complete noob concerning Linux/openSuse/etc. I am working on a project in QTCreator which will use a RFID Reader, to get the data of this reader I want to use the library "libinput" since the reader sends this data as if it is a keyboard. My problem is now that I need to install this library first. I found a website explaining the steps on how to this but I am already unsure what the first step means. The websites provide two links to repositories of libinput and state the I should follow the instruction of these repositories but I am unable to figure out where the instruction is or what the instructions are.
Here is the guide I am following: https://wayland.freedesktop.org/libinput/doc/latest/building.html#building-against
I am using a VMWare running openSUSE Leap 15.2 and the project will run on an embedded Linux system.
The libinput is available at OpenSUSE repository link
Steps to install it on OpenSUSE platform
zypper ar -f https://download.opensuse.org/distribution/leap/15.2/repo/oss/ 15.2-Current-oss
zypper refresh 15.2-Current-oss
zypper in libinput-devel
In order to query some package in the configured repositories you can use zypper se <name>