Quick summary

Many other emulators like Duckstation (PS1), PCSX2 (PS2) and shadPS4 are using translations for the UI components primarily.
It would be great to have the same feature in RPCS3.

I myself have translated all the emulators above including RPCS3 to Swedish. I know there are Polish and Chinese translations available as well.

Either allow translations to be added via PR's or use a service like Crowdin, Transifex or similar.
Use a different repository to make this smoother.

RPCS3 in Swedish

Details

More details in PR #16558