I have installed a "LibreELEC-H3.arm-9.80-devel-20200729102127-986c2dd-orangepi-pc-plus" on my device. I need pvr.iptv simple client, pvr.tvh and tvheadend 4.2 service. But I can't find any working on my device. The Libreelec repository is not available in my location. Help me please.