You could dual license as well, so it’s GPL or AGPL for personal, OSS, or academic use, but requires a paid for commercial license for commercial use.
I suggest GPL or AGPL because their copyleft clauses make them hostile towards platform providers who might otherwise seek to profit from your work without paying.
It would be dual license effectively... the base version AGPL and the Commercial version with additional functionality. Though I'd considered BSL and alternatives... and as mentioned, just closed/commercial only.
Platform providers can take (A)GPL code as-is and totally profit from it without paying.
As long as they keep releasing sources of their own modifications -if they ever do any-, the rest is fair play.