NanoPi-R5C not able to setup keyboard, clock with debian 11 installed

hi, I’ve just installed debian 11 (bullseye) on the eMMC and now i’d to customize it to my needs, yet I can’t change keyboard layout, neither clock.
I tried also to do a sud apt update and nothing happened as expected (mirrors link are down for 1 year.

what can I do to solve all of these?
thanks

How to use Debian can be found here:
https://wiki.friendlyelec.com/wiki/index.php/NanoPi_R5C#Work_with_Debian11_Desktop
image

If you need to rebuild your system, see here:
https://wiki.friendlyelec.com/wiki/index.php/NanoPi_R5C#Build_Other_Linux

all fine, thank you !