Here a cheap reseller of Ubiquiti / Mikrotik / TPLink / ... based in Poland: https://www.ip-sa.com.pl https://www.ip-sa.com.pl (not affiliated, have been a cust

Here a cheap reseller of Ubiquiti / Mikrotik / TPLink / ... based in Poland: https://www.ip-sa.com.pl https://www.ip-sa.com.pl (not affiliated, have been a customer since 2011) Even if you don't buy from them it can give you an idea of what exists, some price ranges and availability. Some outdoor devices (small router + integrated antena + pole mount + weather proof) can be cheaper than a raspberry pi alone, example the TPLink CPE605 cost ~40€ without taxes. Look for hardware that is supported by OpenWRT, so that all community firmware should work.