πBacteria is a ZX Spectrum 48 emulator for Raspberry Pi written by Antonio Villena.
The source code is available at: https://sourceforge.net/p/emuscriptoria/code/HEAD/tree/piBacteria/
Homepage: http://πBacteria.speccy.org/ (in Spanish)
I adapted the source code for Fasmarm. I also translated the Spanish comments and some of the labels into English.
It works on QEMU <= 8.2.0.