[ppp-mod-pppoa] package absent
{"kernel":"4.14.133","hostname":"to","system":"ARMv7 Processor rev 1 (v7l)","model":"Turris Omnia","board_name":"cznic,turris-omnia","release":{"distribution":"TurrisOS","version":"5.0-dev","revision":"cec7b92","target":"mvebu/cortexa9","description":"TurrisOS 5.0-dev cec7b92"}}
whilst present upstream https://downloads.openwrt.org/releases/packages-19.07/arm_cortex-a9_vfpv3/base/ppp-mod-pppoa_2.4.7.git-2019-05-25-2_arm_cortex-a9_vfpv3.ipk
it is curiously absent in https://repo.turris.cz/☞