ugBASIC by Marco Spedaletti is a compiled basic which works on many computers including the Amstrad CPC(+). In fact this compiler write the code so a program works whatever the features of the targeted computer, a feature which doesnt exist in hardware will be managed by software. For ugBASIC's github it's here, an official Facebook group of ugBASIC and even an ugBASIC forum.

There is also an IDE for ugBASIC still by Marco Spedaletti available on Itch.IO.