LiquidSoap & RaspberryPi

RaspberryPi 3 B+ is perfectly capable of running LiquidSoap and IceCast at the same time. Streaming from LiquidSoap to IceCast on Localhost works well.

Bare in mind that the Raspberry Pi 3 B+ is a quad core ARM processor running at 1.4GHz with 1GB RAM. While it is technically very capable, it also has limited performance when compared to modern servers or home computers.

A single LiquidSoap process on a Raspberry Pi 3 B+ consumes around 50% of a single core. You could run 4 LiquidSoap processs without trouble but much more than that will cause stream interruptions and process crashes.