Using I2S amp without I2S

Hello, I am planning to build a small mobile wifi speaker for my daughter. As main board I'll use the orange pi zero 2w (because i already have it, it has usb c and 5ghz wifi and it's small) and i have a small 3W speaker (not tested sound quality yet, but I guess it should be good enough).

For in between i was thinking a mono i2s amp, since that doesn't require a separate dac or psu. So i got the MAX98357A

Turns out, the orange pi doesn't have i2s. It's there any other way to use the amp or do i need to get a different one? And if so: which one do you recommend?

Would be grateful for any information or guidance.