There are several problems with this, but one of them is the Raspberry Pi.
How about improving your hardware with buying a refurbished node from nostr:nprofile1qqsdf8xqnrq52ptyuvaajrz3jpuev6gwt6tl7rw6u67tsakvcuwx33cpzamhxue69uhkvun9deejumn0wd68yvfwvdhk6tcpz9mhxue69uhkummnw3ezuamfdejj73h48dt with preinstalled StartOS, or buying a nostr:nprofile1qqs9df4h2deu3aae83fmet5xmrlm4w5l9gdnsy3q2n7dklem7ezmwfcpzamhxue69uhhyetvv9ujumn0wd68ytnfdenx7tcpzamhxue69uhhyetvv9ujumn0wd68ytnzv9hxgtc5fhmq4 Server One or Server Pure?