Thanks a lot!
Filesystem Size Used Available Use% Mounted on
/dev/root 20.0M 20.0M 0 100% /rom
tmpfs 249.5M 3.1M 246.3M 1% /tmp
/dev/ubi0_1 7.5M 472.0K 6.6M 7% /overlay
overlayfs:/overlay 7.5M 472.0K 6.6M 7% /
ubi1:syscfg 29.6M 892.0K 27.2M 3% /tmp/syscfg
tmpfs 512.0K 0 512.0K 0% /dev
i'll continue my journey finding a speedtest on my router now
Edit: my journey has ended, and it was a good trip: