Kodi 20.0 Nexus
Kodi-20.0-Nexus for Slackware ARM 15.0
Compiled for x11 and gbm
You will also have to install and compile dav1d (1.0.0), jdk, libass, libcec, libdvdcss, libmicrohttpd, libnfs (5.0.2), platform, pycryptodomex, rapidjson and tinyxml.
The slackbuilds can be found at slackbuilds.org or for updated slackbuilds at https://github.com/Ponce/slackbuilds
Edit:
Added additional updated ARM packeges:
dav1d (1.0.0), jdk, libass, libcec, libdvdcss, libmicrohttpd, libnfs (5.0.2), platform, pycryptodomex, rapidjson and tinyxml